161 results on '"Tahir Durmaz"'
Search Results
2. Plasma thiol and disulphide levels and their relationship with left ventricular systolic functions: A propensity score matching analysis
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Mehmet Erdoğan, Selçuk Özturk, Abdullah Nabi Aslan, Hacı Ahmet Kasapkara, Burak Kardeşler, Serdal Baştuğ, Salim Neşelioğlu, and Tahir Durmaz
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Medicine ,Internal medicine ,RC31-1245 ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Published
- 2021
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3. Evaluation of QT dispersion and T-peak to T-end interval in patients with early-stage sarcoidosis
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Hacı Ahmet Kasapkara, Ayşegül Şentürk, Emine Bilen, Hüseyin Ayhan, Bilge Duran Karaduman, Zeynep Şeyma Turinay, Murat Can Güney, Tahir Durmaz, Telat Keleş, and Engin Bozkurt
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Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
Introduction and Aim: Sarcoidosis increases inhomogeneity in ventricular repolarization due to the presence of sarcoid granuloma, which significantly correlates with ventricular fibrillation. Various studies have suggested that the interval from the peak to the end of the electrocardiographic T wave (T-peak to T-end [Tpe] interval) may correspond to the transmural dispersion of repolarization and that increased Tpe interval and Tpe/QT ratio are associated with malignant ventricular arrhythmias. The present study hypothesized that QT and Tpe intervals are significantly prolonged in sarcoidosis patients without apparent cardiac involvement. Methods: The study population consisted of 54 patients (37 female; mean age 43.4±10.6 years) under follow-up for sarcoidosis and 56 healthy subjects (37 female; mean age 42.4±8.6 years). Results: There was no statistically significant difference between the groups in maximum QT interval, QT dispersion or corrected QT (QTc) interval, but QTc dispersion and Tpe interval were significantly prolonged in the sarcoidosis group compared to the control group (QTc dispersion 59.9±22.5 and 44.4±23.8, respectively, p=0.001; Tpe interval 79.4±9.3 and 70.7±7.03, respectively, p
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- 2017
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4. Evaluation of local carotid stiffness and inflammatory biomarkers in stable angina pectoris
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Abdullah Nabi Aslan, Ayşe Nur Özcan, Hüseyin Ayhan, Serkan Sivri, Filiz Çelebi, Karabekir Ercan, and Tahir Durmaz
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stable angina pectoris ,local carotid stiffness ,pulse wave velocity ,intima-media thickness ,high-sensitivity C-reactive protein ,fibrinogen ,Medicine - Abstract
Introduction: Arterial stiffness (AS) is a well-accepted and reliable predictor of atherosclerotic diseases. Inflammation plays an important role in the development of AS. Aim : To evaluate local carotid stiffness (CS) together with fibrinogen and high-sensitivity C-reactive protein (hsCRP) levels in stable angina pectoris (SAP) patients. Material and methods : The study consisted of 353 consecutive patients with SAP. All underwent coronary angiography (CAG) after the evaluation of local CS parameters and carotid intima-media thickness (IMT) from both common carotid arteries by a real-time echo-tracking system. Baseline inflammatory biomarkers, serum hsCRP and fibrinogen levels were measured. Based on CAG findings, the patients were classified into 4 groups: control subjects with normal coronary arteries (group 1, n = 86), single-vessel disease (group 2, n = 104), double-vessel disease (group 3, n = 95) and triple-vessel disease (group 4, n = 68). Results : The mean carotid pulse wave velocity (PWV) in patients with angiographically confirmed coronary artery disease (CAD) was significantly higher than that in patients with normal coronary arteries (7.82 ±1.76 vs. 6.51 ±0.85 cm/s, p = 0.001). The mean carotid IMT was detected to be significantly higher in group 4 patients compared to those in group 1 (p < 0.001) and group 2 (p = 0.001). Significant correlations were observed between both inflammatory biomarkers and the number of diseased vessels and carotid PWV. Using multi-variate analysis, carotid stiffness, carotid IMT, hsCRP and fibrinogen were independently associated with the presence and extent of CAD. Conclusions : Local CS, carotid IMT, hsCRP and fibrinogen levels are significant predictors of atherosclerotic burden and they may facilitate the identification of high-risk patients for the early diagnosis and prompt treatment of CAD.
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- 2017
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5. Transcatheter aortic valve implantation with the Edwards Sapien 3 valve: First experiences in Turkey
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Abdullah Nabi Aslan, Serdal Baştuğ, Hacı Ahmet Kasapkara, Hüseyin Ayhan, Hakan Süygün, Telat Keleş, Tahir Durmaz, Nihal Akar Bayram, Emine Bilen, and Engin Bozkurt
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aortic stenosis ,edwards sapien 3 valve ,permanent pacemaker ,transcatheter aortic valve implantation. ,Medicine ,Internal medicine ,RC31-1245 ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
Objective: Transcatheter aortic valve implantation (TAVI) has shown promising results in patients with severe aortic stenosis (AS) at high risk for open heart surgery. We aimed to evaluate outcomes of patients who underwent TAVI with Edwards SAPIEN 3 Transcatheter Heart Valve (S3), a second-generation TAVI device. Methods: Between November 2014 and June 2016, 31 high-risk patients received balloon-expandable S3 valve at Atatürk Training and Research Hospital that has the largest case series in Turkey. Results: Mean age of the patients was 76.1+-12.6 years. Mean Society of Thoracic Surgeons and logistic European System for Cardiac Operative Risk Evaluation scores were 7.8%+-3.1 and 31.4%+-17.6, respectively. S3 valve was implanted in 27 patients via transfemoral approach and via trans-subclavian approach in 4 patients under local (n=29) or general (n=2) anesthesia. Procedural success rate was 100% (23 mm, n=7; 26 mm, n=16; 29 mm, n=8). Paravalvular aortic regurgitation (PAR) was absent or trivial in 29 (93.6%) patients and mild in 2 (6.4%) patients. Permanent pacemaker implantation (PPI) was required in 2 (6.4%) patients during the procedure, and in-hospital mortality occurred in 1 (3.2%) of those 2 patients. Conclusion: S3 valve is associated with higher rate of device success and lower incidence of PAR, peripheral vascular complications, and need for new PPI.
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- 2016
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6. Epicardial fat tissue thickness is increased in patients with lichen planus and is linked to inflammation and dyslipidemia
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Ahmet Goktug Ertem, Mehmet Erdogan, Cemal Koseoglu, Gulsen Akoglu, Elcin Ozdemir, Gamze Koseoglu, Serkan Sivri, Telat Keles, Tahir Durmaz, Akın Aktas, and Engin Bozkurt
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Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
Background and Objectives: Lichen planus (LP) is a mucocutaneous inflammatory disease. Inflammation plays a major role in the progression of atherosclerosis. Epicardial fat tissue (EFT) has been shown to produce and secrete various proatherogenic and proinflammatory hormones and cytokines. The aim of this study was to assess EFT in patients with lichen planus. Methods: Fifty-four patients with LP and 50 controls were enrolled in the study. LP was diagnosed according to the World Health Organization criteria. EFT was measured on the free wall of the right ventricle in parasternal long-axis view, as previously described and validated. Results: There were positive correlations between EFT thickness and platelet/lymphocyte ratio, neutrophil/lymphocyte ratio, duration of LP, and high-sensitivity C-reactive protein (hsCRP) (p
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- 2016
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7. Trans-subclavian aortic valve replacement with various bioprosthetic valves: Single-center experience
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Hacı Ahmet Kasapkara, Abdullah Nabi Aslan, Hüseyin Ayhan, Serdal Baştuğ, Hakan Süygün, Telat Keleş, Tahir Durmaz, and Engin Bozkurt
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cardiovascular diseases ,heart catheterization ,lotus ,sapien 3 ,sapien xt ,transcatheter aortic valve replacement. ,Medicine ,Internal medicine ,RC31-1245 ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
Objective: Transcatheter aortic valve replacement (TAVR) has been accepted as an alternative to surgery in high risk or inoperable patients with severe aortic stenosis (AS). Although transfemoral approach is the most often preferred means of access, in patients with severe ilio-femoral arteriopathy, other vascular access sites may be required. The aim of the present study was to report our experience with trans-subclavian approach for TAVR using different valve systems. Methods: Among 273 patients undergoing TAVR between June 2011 and May 2016, 10 patients (mean age: 68.3+-7.6 years; 6 males) with high surgical risk were excluded from transfemoral TAVR because of ilio-femoral arteriopathy. Under general anesthesia, 9 of these patients underwent TAVR via left subclavian artery (SCA) and 1 patient via right SCA. Surgical cut-down and closure techniques were utilized in all patients. Eight balloon-expandable Edwards Sapien XT valves (size: one 23 mm, six 26 mm, and one 29 mm) were used, 1 patient received 26 mm balloon-expandable Sapien 3 valve, and 1 patient had 27 mm self-expandable Lotus valve implanted. Results: Procedural success rate was 90%. Mean aortic gradient decreased to 10.6 mmHg from 47.4 mmHg. Emergent surgery was required in 1 patient due to complication of ventricular valve embolization. Thrombus formation at right SCA was detected in 1 patient and resolved with medical therapy. In-hospital mortality was not observed in any patients. Conclusion: Trans-subclavian approach for TAVR is safe and feasible. Proper patient and valve selection concurrent with utilization of multimodal imaging techniques are crucial for successful and uncomplicated procedure.
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- 2016
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8. Long-term survival in a case of unoperated single ventricle
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Bilge Duran Karaduman, Hüseyin Bayram, Hacı Ahmet Kasapkara, Telat Keleş, and Tahir Durmaz
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heart defects ,congenital ,single ventricle. ,Medicine ,Internal medicine ,RC31-1245 ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
Single ventricle is a rare congenital heart dis-ease, typically diagnosed with dyspnea and cyanosis. The number of patients who reach adulthood without having un-dergone surgical treatment is limited due to poor prognosis. While some reports in the literature, describe patients who have reached the 2nd and 3rd decades of life, it is very interesting that the case of the patient who has lived the longest with unoperated single ventricle is reported in Turkey.
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- 2016
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9. Bulging sign: A precursor of annular rupture observed before aortic balloon rupture during valvuloplasty in transcatheter aortic valve implantation
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Hacı Ahmet Kasapkara, Abdullah Nabi Aslan, Tahir Durmaz, and Engin Bozkurt
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aortic balloon rupture ,transcatheter aortic-valve implantation ,valvuloplasty ,Medicine ,Internal medicine ,RC31-1245 ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
Transcatheter aortic-valve implantation (TAVI) is a reliable alternative to surgical aortic-valve replacement in inoperable or high-risk patients. However, this evolving therapy is associated with a wide range of potential complications— some specific to TAVI, some often fatal. Prevention, early recognition, and taking essential precautions will significantly improve results. The case of an 85-year-old woman with balloon rupture during valvuloplasty in TAVI, a very rare and potentially fatal complication, is presented.
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- 2016
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10. Prosthetic valve endocarditis 7 months after transcatheter aortic valve implantation diagnosed with 3D TEE
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Cenk Sarı, Tahir Durmaz, Bilge Duran Karaduman, Telat Keleş, Hüseyin Bayram, Serdal Baştuğ, Mehmet Burak Özen, Nihal Akar Bayram, Emine Bilen, Hüseyin Ayhan, Hacı Ahmet Kasapkara, and Engin Bozkurt
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Transcatheter aortic valve implantation ,Infective endocarditis ,3D echocardiography ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
Transcatheter aortic valve implantation (TAVI) was introduced as an alternative treatment for patients with severe symptomatic aortic stenosis for whom surgery would be high-risk. Prosthetic aortic valve endocarditis is a serious complication of surgical AVR (SAVR) with high morbidity and mortality. According to recent cases, post-TAVI prosthetic valve endocarditis (PVE) seems to occur very rarely. We present the case of a 75-year-old woman who underwent TAVI (Edwards Saphien XT) with an uneventful postoperative stay. She was diagnosed with endocarditis using three dimensional (3D) echocardiography on the TAVI device 7 months later and she subsequently underwent surgical aortic valve replacement. Little experience of the interpretation of transoesophageal echocardiography (TEE) and the clinical course and effectiveness of treatment strategies in post-TAVI endocarditis exists. We report a case of PVE in a TAVI patient which was diagnosed with three-dimensional transoesophageal echocardiography (3DTEE).
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- 2016
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11. Assessment of the left ventricular function in normotensive prediabetics: a tissue Doppler echocardiography study
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Murat Akçay, Abdullah N. Aslan, Hacı A. Kasapkara, Hüseyin Ayhan, Tahir Durmaz, Telat Keleş, and Engin Bozkurt
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Prediabetes ,left ventricular function ,tissue Doppler echocardiography ,Medicine ,Diseases of the endocrine glands. Clinical endocrinology ,RC648-665 - Abstract
ABSTRACT Objective Several studies have shown that left ventricular (LV) dysfunction is increased in individuals with diabetes. However, there are scarce data about LV function in prediabetics. This study assessed the early changes in LV diastolic and systolic myocardial function in normotensive prediabetics using tissue Doppler echocardiography (TDE). Subjects and methods We evaluated 94 patients with prediabetes (mean age of 50.8 ± 6.9 years, 78 female) without known cardiovascular diseases and 70 healthy volunteers with similar demographic characteristics. Systolic and diastolic function of the left ventricle was evaluated with transthoracic echocardiography according to the latest consensus recommendations including TDE. Results The mean results of septal and lateral parts of the mitral annulus Pulsed wave TDE showed that myocardial systolic wave (Sm), myocardial early diastolic wave (Em) and Em to atrial peak velocity (Am) ratio were significantly lower whereas early diastolic peak flow velocity (E) to Em ratio, myocardial isovolumetric relaxation time (IVRTm), myocardial isovolumetric contraction time (IVCTm) and myocardial performance index (MPI) values were significantly higher in patients with prediabetes (preDM). In addition, mean left atrium (LA) diameter measured with M-mode echocardiography was significantly higher in prediabetics than controls. Conclusion PreDM is associated with subclinical LV systolic and diastolic dysfunction as evaluated by TDE.
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- 2016
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12. The evaluation of left ventricular functions with tissue doppler echocardiography in adults with celiac disease
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Fatma E Akin, Cenk Sari, Sevil Ozer-Sari, Aylin Demirezer-Bolat, Tahir Durmaz, Telat Keles, Osman Ersoy, and Engin Bozkurt
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Cardiac involvement ,celiac disease ,tissue Doppler echocardiography ,ventricular functions ,Diseases of the digestive system. Gastroenterology ,RC799-869 - Abstract
Background/Aim: The aim of this study was to investigate the effects of celiac disease on cardiac functions using tissue Doppler echocardiography (TDE). Patients and Methods: The study included 30 patients with celiac disease (CD) and 30 healthy volunteers. Echocardiographic examinations were assessed by conventional echocardiography and tissue Doppler imaging. The peak systolic velocity (S'm), early diastolic myocardial peak velocity (E'm), late diastolic myocardial peak velocity (A'm), E'm/A'm ratio, myocardial precontraction time (PCT'm), myocardial contraction time (CT'm), and myocardial isovolumetric relaxation time (IVRT'm), E to E'm ratio were measured. Results: In pulsed wave Doppler echocardiography, mitral late diastolic flow (A) velocity and E to E'm ratio were significantly higher (P = 0.02 and P = 0,017), E/A ratio was significantly lower (P = 0.008) and IVRT was significantly prolonged (P = 0.014) in patients with CD. In TDE, S'm, E'm, and E'm/A'm ratio were significantly lower, IVRT'm was longer (P = 0.009) from septal mitral annulus and S'm, E'm, E'm/A'm ratio were significantly lower, PCT'm, PCT/ET ratio, IVRT'm were longer, and MPI was higher from lateral mitral annulus in celiac group than controls. Conclusion: Our study confirms that patients with CD have impaired diastolic function. More importantly, we also demonstrated an impairment of myocardial systolic function in patients with CD by TDE. We recommend using TDE in addition to conventional echocardiography parameters for the cardiovascular risk assessment of patients with CD.
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- 2016
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13. Koroner Anjiyografi Sırasındaki Nitrogliserin Uygulamalarının Lezyonları Değerlendirmedeki Önemi
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Abdullah Aslan, Ahmet Ertem, Cenk Sarı, Engin Bozkurt, Hacı Kasapkara, Hüseyin Ayhan, Hüseyin Bayram, Ömer Çiçek, Serdal Baştuğ, Tahir Durmaz, and Telat Keleş
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koroner anjiyografi ,nitrogliserin ,spazm ,Medicine - Abstract
Elli beş yaşında erkek hastaya yapılan koroner anjiyografi sonrasında sol ön inen arterdeki (LAD) ciddi lezyona perkütan koroner girişim planlandı. Perkütan koroner girişim öncesi, hastaya uygulanan intrakoroner nitrogliserin sonrası girişim planlanan lezyonun kaybolduğu izlendi. Bu olgu sunumunda teorik olarak iyi bilinen fakat pratik uygulamalarda bazen göz ardı edilebilen dil altı veya intrakoroner nitrogliserinin uygulamalarının lezyonların değerlendirilmesindeki önemini bir kez daha hatırlatmayı amaçladık.
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- 2015
14. Off-Pump ve On-Pump Koroner Arter Bypas Tekniklerinin QT Dispersiyonu Üzerine Olan Etkilerinin Karşılaştırılması
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Ahmet Ertem, Cenk Sarı, Engin Bozkurt, Hacı Kasapkara, Hüseyin Ayhan, Hüseyin Bayram, Nihal Akar Bayram, Serdal Baştuğ, Tahir Durmaz, and Telat Keleş
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koroner arter bypas greftleme ,qt dispersiyonu ,Medicine - Abstract
Amaç Koroner arter bypas greftleme sonrası ventriküler eksra atımdan süreğen olmayan venrtiküler takikardi, süreğen venrtiküler takikardi ve ventriküler fibrilasyon gibi takiaritmilere değişen aritmik tablolar görülebilir. Bu çalışmada atan kalpte ve on pump Koroner arter bypas greftlemenin QT dispersiyonu üzerine olan etkilerini araştırmayı amaçladık.Materyal ve Metot: Çalışmaya 64 koroner arter bypas greftleme adayı olan hasta alındı. Bu hastalar on-pump koroner arter bypas greftleme grubu (n= 40) ve atan kalpte koroner arter bypas greftleme grubu (n= 24) olarak iki gruba ayrıldı. Elektrokardiyografi ve ekokardiyografi, cerrahiden önce ve 1 ay sonrasında uygulandı.Bulgular: Her iki grubunun bazal karekteristik özelliklerine bakıldığında, gruplar arasında istatistiksel açıdan fark saptanmadı. Her iki koroner arter bypas greftleme tekniğinin kendi içerisinde operasyon öncesi ve sonrasında anlamlı değişiklik mevcuttu. Operasyon sonrası atan kalpte koroner arter bypas greftleme ve pompada koroner arter bypas greftleme gruplarının minimum QT, maksimum QT, QT dispersiyonu, minimum QTc, maksimum QTc ve QTc dispersiyonu açısından karşılaştırıldığında aralarında istatiksel açıdan anlamlı fark yoktu.Sonuç: Bizim çalışmamızda her iki koroner arter bypas greftleme tekniğinin de QT dispersiyonu üzerine düzeltici etkisi olduğu gözlenmiştir. Fakat iki tekniğin birbirlerine üstünlüğü olmadığı görülmüştür.
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- 2015
15. Transcatheter aortic valve implantation in the presence of hematologic malignancies
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Cenk Sarı, Hüseyin Ayhan, Serdal Baştuğ, Hacı Ahmet Kasapkara, Bilge Duman Karaduman, Abdullah Nabi Aslan, Mehmet Burak Özen, Emine Bilen, Nihal Akar Bayram, Telat Keleş, Tahir Durmaz, and Engin Bozkurt
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aortic valve stenosis ,hematologic malignancies ,transfemoral aortic valve implantation ,Medicine ,Internal medicine ,RC31-1245 ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
OBJECTIVE: Cardiac surgery may be performed in patients with hematologic disorders, but carries an increased risk of morbidity. This series describes an experience of transcatheter aortic valve implantation (TAVI) in patients with hematologic malignancies, and highlights the technical considerations to be kept in mind. METHODS: Between June 2011 and April 2014, 133 consecutive high-risk patients with symptomatic severe aortic stenosis were treated with TAVI at our centre. Based on consensus among the local heart team, five patients with hematologic malignancies (myelodysplastic syndrome [2],chronic lymphocytic leukemia [2], Hodgkin lymphoma [1]) were considered high risk for surgery (Logistic EUROSCORE 17.2+-14.0% and STS score 5.8+-4.3%). Serial echocardiographic and clinical follow-ups were done pre- and post-procedure, at discharge, and at 1, 3, 6 and 12 months. RESULTS: Our procedural success rate was 80%. Two heart valves were implanted in one patient due to aortic embolization of the previous valve. Perforation of the right ventricle and cardiac tamponade occurred in the same patient. Mean blood transfusion requirement was 1.0+-1.4 U (range: 0 to 3 U). Mean aortic valve gradient was reduced from baseline to 9.2+-3.27 mmHg, and the effective orifice area was significantly increased to 1.96+-0.29 cm2. Paravalvular aortic regurgitation (AR) was absent-mild in all the patients. CONCLUSION: This present series demonstrates that TAVI with a balloon-expandable valve can be performed safely and effectively and is technically feasible in high-risk patients with hematologic malignancies.
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- 2015
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16. Bonsai Induced Acute Myocardial Infarction: A Case Report
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Hüseyin Ayhan, Abdullah Nabi Aslan, Hakan Süygün, and Tahir Durmaz
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bonsai ,acute myocardial infarction ,synthetic cannabinoid ,Medicine ,Internal medicine ,RC31-1245 ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
Incidences of drug abuse and cannabis have increased in young adults, recently. Cannabis induced myocardial infarction has rarely been reported in these people. There is no any literature about a synthetic cannabinoid, being recently most popular Bonsai, to cause myocardial infarction. In this case report we presented a 33 years old male patient who developed acute myocardial infarction after taking high doses of bonsai.
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- 2014
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17. TRANSCATHETER AORTIC VALVE IMPLANTATION IN PATIENTS WITH LEFT ATRIAL APPENDIX THROMBUS
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Hüseyin Ayhan, Tahir Durmaz, Telat Keleş, Abdullah Nabi Aslan, Cenk Sarı, Hacı Ahmet Kasapkara, Emine Bilen, Nihal Akar Bayram, Murat Akçay, and Engin Bozkurt
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transcatheter aortic valve implantation ,atrial fibrillation ,left atrial appendix ,thrombus ,stroke ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
Aim. The transcatheter aortic valve implantation (TAVI) which developed in the recent years has become an alternative for surgery. However, in spite of new developments the process based vascular and neurological complications still remain to be a problem with elderly patients who also tend to have many co-morbid conditions. With this study we aimed to evaluate the TAVI efficacy and reliability on patients with scarcely relative contraindication and with intracardiac thrombus who are mostly left out of the study.Methods and Results. There has been a successful TAVI process conducted in our clinic for antiplatelet and anticoagulation for 6 cases in which thrombus was seen in left atrial appendix (LAA) via transesophageal echocardiography (TEE) and which are not suitable for surgical valve replacement due to atrial fibrillation (AF) and severe AS comorbid reasons. Edwards SAPIEN XT valve was implanted to all patients transfemorally with general anaesthesia. The process was facilitated successfully and no major/minor stroke was observed in post-process early period, and 9 month controls, in average.Conclusion. Other than AS, also AF, whose frequency increases with age, is an important risk factor for neurological complications. In patients who has AF and AS the source of the cardioembolic focus is mainly LAA. The post-TAVI antiplatelet and anticoagulation treatment is not clear for these patients. We tried to show that TAVI process is reliable in terms of the risk of stroke, in careful processing and suitable anticoagulation treatment for the patients with AF, AS and LAA in this first case study in literature, as far as we know.
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- 2014
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18. Multiple fistulae of all three coronary arteries draining into the pulmonary artery and concomitant coronary anomaly
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Mehmet Burak Özen, Tahir Durmaz, Hüseyin Ayhan, and Mehmet Erdoğan
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Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Published
- 2017
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19. Prognostic utility of pulmonary artery and ascending aorta diameters derived from computed tomography in COVID‐19 patients
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Muhammed Said Beşler, Selcuk Ozturk, Rahmet Guner, Imran Hasanoglu, Mehmet Erdoğan, Tahir Durmaz, Mehmet Akif Erdöl, Bircan Kayaaslan, and Ahmet Kasapkara
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Coronavirus disease 2019 (COVID-19) ,ascending aorta ,Computed tomography ,Pulmonary Artery ,COVID‐19 ,medicine.artery ,Statistical significance ,Ascending aorta ,medicine ,Humans ,Radiology, Nuclear Medicine and imaging ,Aorta ,Retrospective Studies ,medicine.diagnostic_test ,SARS-CoV-2 ,business.industry ,Maximal diameter ,COVID-19 ,computed tomography ,Retrospective cohort study ,Original Articles ,Prognosis ,Multivariate logistic regression model ,Pulmonary artery ,Original Article ,Tomography, X-Ray Computed ,Cardiology and Cardiovascular Medicine ,Nuclear medicine ,business - Abstract
Aim Chest computed tomography (CT) imaging plays a diagnostic and prognostic role in Coronavirus disease 2019 (COVID‐19) patients. This study aimed to investigate and compare predictive capacity of main pulmonary artery diameter (MPA), ascending aorta diameter (AAo), and MPA‐to‐AAo ratio to determine in‐hospital mortality in COVID‐19 patients. Materials and methods This retrospective study included 255 hospitalized severe or critical COVID‐19 patients. MPA was measured at the level of pulmonary artery bifurcation perpendicular to the direction of the vessel through transverse axial images and AAo was measured by using the same CT slice at its maximal diameter. MPA‐to‐AAo ratio was calculated by division of MPA to AAo. Results Multivariate logistic regression model yielded MPA ≥29.15 mm (OR: 4.95, 95% CI: 2.01–12.2, p = 0.001), MPA (OR: 1.28, 95% CI: 1.13–1.46, p
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- 2021
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20. Plasma thiol and disulphide levels and their relationship with left ventricular systolic functions: A propensity score matching analysis
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Tahir Durmaz, Abdullah Nabi Aslan, Burak Kardeşler, Selcuk Ozturk, Serdal Baştuğ, Salim Neselioglu, Hacı Ahmet Kasapkara, and Mehmet Ozgur Erdogan
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Male ,medicine.medical_specialty ,Systole ,medicine.disease_cause ,Ventricular Function, Left ,Internal medicine ,medicine ,Humans ,Diseases of the circulatory (Cardiovascular) system ,In patient ,Statistical analysis ,Disulfides ,Sulfhydryl Compounds ,cardiovascular diseases ,Propensity Score ,Aged ,Retrospective Studies ,chemistry.chemical_classification ,Ejection fraction ,business.industry ,Stroke Volume ,Middle Aged ,Prognosis ,medicine.disease ,RC31-1245 ,humanities ,Oxidative Stress ,chemistry ,Echocardiography ,Heart failure ,RC666-701 ,Propensity score matching ,cardiovascular system ,Thiol ,Cardiology ,Medicine ,Female ,Cardiology and Cardiovascular Medicine ,business ,Blood parameters ,Biomarkers ,Oxidative stress ,circulatory and respiratory physiology - Abstract
OBJECTIVE Left ventricular (LV) systolic function measured through LV ejection fraction (LVEF) has prognostic implications in patients with cardiac and non-cardiac conditions. The balance of thiol and disulphide levels reflects oxidative status in the body. In this study, we aimed to investigate the relationship between plasma thiol and disulphide levels, and LVEF calculated by transthoracic echocardiography (TTE). METHODS This retrospective study included 1,048 patients referred for TTE examination and biochemical analyses, including plasma thiol and disulphide levels. After the application of exclusion criteria, the remaining 611 patients were included in the statistical analysis. Patients were classified into two groups, namely normal LVEF (n-LVEF) (n=446) and low LVEF (l-LVEF) (n=165) according to a cut-off level of LVEF 50%. To reduce sample selection bias and adjust for the influence of differences in patient characteristics on LVEF and oxidative status, 1: 1 propensity score matching analysis was applied. RESULTS Propensity score matching analysis yielded 125 patients in both groups with comparable demographics, medications, and blood parameters. Native thiol and total thiol levels were lower in l-LVEF patients than in n-LVEF patients (p
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- 2021
21. Systemic immune-inflammation index is a novel marker to predict functionally significant coronary artery stenosis
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Mehmet Ozgur Erdogan, Mehmet Akif Erdöl, Selcuk Ozturk, and Tahir Durmaz
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Blood Platelets ,Male ,Coronary angiography ,medicine.medical_specialty ,Neutrophils ,Clinical Biochemistry ,Diagnostic Techniques, Cardiovascular ,Coronary stenosis ,Fractional flow reserve ,Coronary Angiography ,Independent predictor ,Internal medicine ,Drug Discovery ,medicine ,Humans ,Lymphocyte Count ,Lymphocytes ,Neutrophil to lymphocyte ratio ,Aged ,Retrospective Studies ,Inflammation ,business.industry ,Biochemistry (medical) ,Coronary Stenosis ,Middle Aged ,Prognosis ,medicine.disease ,Fractional Flow Reserve, Myocardial ,Stenosis ,Cardiology ,Female ,business ,Biomarkers ,Immune inflammation - Abstract
Aim: The study aimed to investigate and compare the predictive capacity of a systemic immune-inflammation index (SII), neutrophil-to-lymphocyte ratio (NLR) and platelet-to-lymphocyte ratio (PLR) to determine a hemodynamically significant coronary artery stenosis assessed by fractional flow reserve (FFR). Patients & methods: A total of 207 chronic coronary syndrome patients with FFR measurement were enrolled in the study. NLR, PLR and SII levels were calculated. Results: The cut-off value of the SII (620) was associated with 78.4% sensitivity and 64.0% specificity to predict a hemodynamically significant stenosis. SII level independently predicted FFR ≤0.80. Conclusion: SII is an independent predictor of functionally significant coronary stenosis detected by FFR in chronic coronary syndrome patients. SII levels can predict hemodynamically severe obstruction better than NLR and PLR.
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- 2020
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22. The relationship between calcific severe aortic stenosis and systemic immune-inflammation index
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Selcuk Ozturk, Serdal Baştuğ, Nihal Akar Bayram, Burak Kardeşler, Mehmet Erdoğan, Mehmet Akif Erdöl, Hacı Ahmet Kasapkara, Tahir Durmaz, Murat Yigitbası, and Murat Akçay
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medicine.medical_specialty ,Neutrophils ,Lymphocyte ,Inflammation ,030204 cardiovascular system & hematology ,03 medical and health sciences ,0302 clinical medicine ,Immune system ,Internal medicine ,Medicine ,Humans ,Radiology, Nuclear Medicine and imaging ,Platelet ,Lymphocyte Count ,Lymphocytes ,Aged ,Retrospective Studies ,business.industry ,Aortic Valve Stenosis ,medicine.disease ,Prognosis ,Pathophysiology ,Stenosis ,medicine.anatomical_structure ,030220 oncology & carcinogenesis ,Absolute neutrophil count ,Cardiology ,medicine.symptom ,Cardiology and Cardiovascular Medicine ,business ,Immune inflammation - Abstract
Calcific aortic stenosis (AS) is a common valvular disease especially in elderly population. Inflammation plays significant role in the pathophysiological mechanism. Systemic immune-inflammation index (SII) is a novel marker of immune system and inflammation that includes neutrophil, lymphocyte, and platelet cell counts. The aim of this study was to investigate the predictive value of SII in calcific severe AS.Severe calcific AS patients were categorized into two groups: High flow-high gradient (HFHG) AS (n = 289) and low flow-low gradient AS (n = 79). Control group included 273 patients with similar clinical and demographic characteristics but without AS. SII was calculated as absolute platelet count × absolute neutrophil count/absolute lymphocyte count.SII levels were 525 ± 188, 835 ± 402, and 784 ± 348 in control, HFHG AS, and LFLG AS groups, respectively (P .001). Correlation analyses revealed significant and positive correlation between SII and mean aortic transvalvular pressure gradient (r = .342, P .001), and negative and significant correlation between SII and AVA (r = -.461, P .001). Multivariate analysis performed in separate models demonstrated sex, CAD, LDL, and SII levels (Odds ratio [OR]: 1.004, 95 CI%:1.003-1.004) as independent predictors of severe AS in Model 1. According to Model 2, sex, CAD, LDL, and high SII (661) (OR:5.78, 95 CI%:3.93-4.89) remained as independent predictors of severe AS.SII levels can be useful to predict severe calcific AS patients and significantly correlate with AVA and mean aortic transvalvular pressure gradient.
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- 2021
23. Ipsilateral trans-axillary aortic valve replacement in a patient with ilio-femoral and coronary artery bypass surgery, permanent pacemaker and subclavian stent
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Abdullah Aslan, Emrah Uğuz, Esma Arslan, and Tahir Durmaz
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- 2020
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24. Trends in acute myocardial infarction volume and related outcomes during the coronavirus disease 2019 pandemic in Turkey
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Hacı Ahmet Kasapkara, Suayip Birinci, Mustafa Mücahit Balcı, Nazim Coskun, Harun Kundi, Tahir Durmaz, Aziz Ahmet Surel, Murat Akçay, and Mustafa Mahir Ulgu
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medicine.medical_specialty ,Time Factors ,Turkey ,Coronavirus disease 2019 (COVID-19) ,business.industry ,COVID-19 ,General Medicine ,medicine.disease ,Patient Admission ,Treatment Outcome ,Cause of Death ,Research Communications: COVID-19 and CAD ,Emergency medicine ,Pandemic ,medicine ,Electronic Health Records ,Humans ,ST Elevation Myocardial Infarction ,Cardiology Service, Hospital ,Myocardial infarction ,Non-ST Elevated Myocardial Infarction ,Cardiology and Cardiovascular Medicine ,business ,Retrospective Studies - Published
- 2021
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25. Assessment of local carotid stiffness in seronegative and seropositive rheumatoid arthritis
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Abdullah Nabi Aslan, Şükran Erten, Ayşe Nur Şirin Özcan, Tahir Durmaz, and Yakup Alsancak
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Adult ,Carotid Artery Diseases ,Male ,musculoskeletal diseases ,medicine.medical_specialty ,animal structures ,Carotid Artery, Common ,Disease ,Pulse Wave Analysis ,030204 cardiovascular system & hematology ,Independent predictor ,Carotid Intima-Media Thickness ,Peptides, Cyclic ,Arthritis, Rheumatoid ,03 medical and health sciences ,Vascular Stiffness ,0302 clinical medicine ,Carotid stiffness ,Predictive Value of Tests ,Rheumatoid Factor ,Risk Factors ,Internal medicine ,medicine ,Humans ,Serologic Tests ,Pulse wave velocity ,030203 arthritis & rheumatology ,business.industry ,Middle Aged ,medicine.disease ,Surgery ,Seropositive rheumatoid arthritis ,Increased risk ,Case-Control Studies ,Rheumatoid arthritis ,Cardiology ,Arterial stiffness ,Female ,Cardiology and Cardiovascular Medicine ,business ,Biomarkers - Abstract
Rheumatoid arthritis (RA) is a chronic, inflammatory disease associated with increased risk of cardiovascular (CV) disease. Arterial stiffness (AS) is an independent predictor of CV events. This study aimed to analyse local carotid AS parameters in seronegative and seropositive RA patients.Of 347 consecutive RA patients, we selected specifically those who were free of established CV diseases and risk factors. As a result, 140 patients (126 women, 52.2 ± 10 years) and 140 healthy controls (122 women, 52.7 ± 8.0 years) were enrolled into this study. The common carotid AS was evaluated using radio frequency echo-tracking system to determine the local carotid pulse wave velocity (cPWV) and carotid intima-media thickness (cIMT). Based on rheumatoid factor (RF) and/or anti-citrullinated protein antibody (ACPA) positivity, RA patients were categorized into seronegative and seropositive subgroups.Carotid PWV was determined to be significantly higher in all patients and subgroups than controls (p .001 for all). Although cIMT was similar between the patients, controls and seropositive subgroup, seronegative patients had significantly higher cIMT compared to controls (p = .035) and seropositive group (p = .010). Moreover, a significant positive correlation was found between cPWV and age (r: 0.603, p .001), ESR (r: 0.297, p = .004), ACPA (r: 0.346, p = .001) and cIMT (r: 0.290, p = .005) in seropositive patients.RA per se is sufficient to cause arteriosclerosis in the absence of classical CV risk factors. However, arterial hypertrophy is only increased in seronegative patients but not in seropositive group.
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- 2017
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26. Comparison between fractional flow reserve and visual assessment for moderate coronary artery stenosis
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Murat Can Güney, Hacı Ahmet Kasapkara, Emine Bilen, Telat Keleş, Tahir Durmaz, Murat Akçay, Nihal Akar Bayram, Bilge Duran Karaduman, Engin Bozkurt, and Hüseyin Ayhan
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Male ,medicine.medical_specialty ,Hemodynamics ,Fractional flow reserve ,Coronary stenosis ,030204 cardiovascular system & hematology ,Coronary Angiography ,Severity of Illness Index ,Lesion ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,Severity of illness ,Visual assessment ,medicine ,Humans ,030212 general & internal medicine ,Aged ,business.industry ,Coronary Stenosis ,Middle Aged ,Fractional Flow Reserve, Myocardial ,medicine.anatomical_structure ,Cardiology ,Female ,Radiology ,medicine.symptom ,Cardiology and Cardiovascular Medicine ,business ,Kappa ,Artery - Abstract
Background: Fractional flow reserve (FFR) is an interventional diagnostic method, based on intracoronary pressure measurement, used for the assessment of the severity of coronary artery stenoses. Aim: Our study aimed to compare visual measurements made by multiple observers with FFR measurement in the assessment of angiographically moderate coronary artery stenosis. Methods: The angiographic images of moderate coronary artery lesions of 359 patients enrolled in the study were interpreted independently by three interventional cardiologists assigned as observers (O1, O2, O3). Results: In FFR, 37.9% were haemodynamically significant, while 62.1% were insignificant. 40.3% of the lesions were considered severe by O1, 39.9% by O2, and 44.4% by O3. When we compare the FFR results to the observers’ decisions about lesion severity, the serious lesion percentages of all three observers were different both from each other and from the FFR result, at a statistically significant level (respectively, p < 0.001, p < 0.001). The kappa analysis performed to check the agreement between the observers’ decisions and FFR revealed significant difference between FFR results and the decisions made by all observers (p < 0.001). The kappa agreement analysis performed by matching observers’ decisions in pairs revealed a good agreement between O1 and O2 and a moderate agreement between O2 and O3 as well as O1 and O3, although there was still a significant disagreement between all pairs of observers (p < 0.001). Conclusions: Visual assessment, even when performed by experienced interventional cardiologists, does not yield similar results with FFR procedure in the process of determination of the functional importance of moderately severe coronary artery stenoses.
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- 2017
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27. Evaluation of local carotid stiffness and inflammatory biomarkers in stable angina pectoris
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Tahir Durmaz, Abdullah Nabi Aslan, Karabekir Ercan, Serkan Sivri, Ayşe Nur Şirin Özcan, Hüseyin Ayhan, and Filiz Çelebi
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medicine.medical_specialty ,pulse wave velocity ,lcsh:Medicine ,Inflammation ,Fibrinogen ,Stable angina ,Coronary artery disease ,Internal medicine ,medicine ,local carotid stiffness ,cardiovascular diseases ,intima-media thickness ,Pulse wave velocity ,Original Paper ,business.industry ,lcsh:R ,medicine.disease ,stable angina pectoris ,Inflammatory biomarkers ,Intima-media thickness ,Arterial stiffness ,Cardiology ,cardiovascular system ,high-sensitivity C-reactive protein ,fibrinogen ,medicine.symptom ,Cardiology and Cardiovascular Medicine ,business ,medicine.drug - Abstract
Introduction: Arterial stiffness (AS) is a well-accepted and reliable predictor of atherosclerotic diseases. Inflammation plays an important role in the development of AS. Aim : To evaluate local carotid stiffness (CS) together with fibrinogen and high-sensitivity C-reactive protein (hsCRP) levels in stable angina pectoris (SAP) patients. Material and methods : The study consisted of 353 consecutive patients with SAP. All underwent coronary angiography (CAG) after the evaluation of local CS parameters and carotid intima-media thickness (IMT) from both common carotid arteries by a real-time echo-tracking system. Baseline inflammatory biomarkers, serum hsCRP and fibrinogen levels were measured. Based on CAG findings, the patients were classified into 4 groups: control subjects with normal coronary arteries (group 1, n = 86), single-vessel disease (group 2, n = 104), double-vessel disease (group 3, n = 95) and triple-vessel disease (group 4, n = 68). Results : The mean carotid pulse wave velocity (PWV) in patients with angiographically confirmed coronary artery disease (CAD) was significantly higher than that in patients with normal coronary arteries (7.82 ±1.76 vs. 6.51 ±0.85 cm/s, p = 0.001). The mean carotid IMT was detected to be significantly higher in group 4 patients compared to those in group 1 (p < 0.001) and group 2 (p = 0.001). Significant correlations were observed between both inflammatory biomarkers and the number of diseased vessels and carotid PWV. Using multi-variate analysis, carotid stiffness, carotid IMT, hsCRP and fibrinogen were independently associated with the presence and extent of CAD. Conclusions : Local CS, carotid IMT, hsCRP and fibrinogen levels are significant predictors of atherosclerotic burden and they may facilitate the identification of high-risk patients for the early diagnosis and prompt treatment of CAD.
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- 2017
28. Mean Platelet Volume to Lymphocyte Ratio: A New Biomarker to Predict Contrast-Induced Nephropathy After Coronary Angiography
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Serkan Bulguroglu, Murat Yigitbası, Murat Akçay, Burak Kardeşler, Tahir Durmaz, Selcuk Ozturk, Yunus Çalapkulu, and Mehmet Ozgur Erdogan
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Coronary angiography ,medicine.medical_specialty ,medicine.anatomical_structure ,business.industry ,Lymphocyte ,Urology ,Contrast-induced nephropathy ,Biomarker (medicine) ,Medicine ,Mean platelet volume ,Cardiology and Cardiovascular Medicine ,business ,medicine.disease - Published
- 2020
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29. Forced expiratory volume in one second can predict SYNTAX score in patients with chronic obstructive pulmonary disease
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Telat Keleş, Tahir Durmaz, Ozge Kurmus, Engin Bozkurt, Emine Bilen, Ozgur Kirbas, Büşra Çolak, Ahmet Göktuğ Ertem, and Cemal Koseoglu
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Male ,Spirometry ,medicine.medical_specialty ,Multivariate analysis ,medicine.medical_treatment ,Coronary Artery Disease ,Coronary Angiography ,Coronary artery disease ,Pulmonary Disease, Chronic Obstructive ,Percutaneous Coronary Intervention ,Forced Expiratory Volume ,Internal medicine ,Humans ,Medicine ,Coronary Artery Bypass ,Aged ,COPD ,medicine.diagnostic_test ,business.industry ,Percutaneous coronary intervention ,Odds ratio ,Middle Aged ,Prognosis ,medicine.disease ,humanities ,Confidence interval ,respiratory tract diseases ,Surgery ,medicine.anatomical_structure ,ROC Curve ,Cardiology ,Female ,Cardiology and Cardiovascular Medicine ,business ,Artery - Abstract
Background: The SYNTAX score is an angiographic score that predicts coronary artery disease (CAD) complexity. It has been shown to be useful for decision making about percutaneous coronary intervention or coronary artery bypass grafting among patients with CAD. Higher SYNTAX scores are indicative of more complex disease. Chronic obstructive pulmonary disease (COPD) is characterised by limitation of airflow. Measurement of forced expiratory volume in one second (FEV1) in spirometry is used for diagnosis and to determine the severity of the disease. Aim: To evaluate the relationship between FEV1 and SYNTAX score in patients with COPD. Methods: Seventy-eight patients with a previous diagnosis of COPD and 48 patients without COPD were enrolled. Spirometry and coronary angiography were performed in all patients. SYNTAX score was calculated and compared between the two groups. The correlation between FEV1 and SYNTAX score was analysed. Results: SYNTAX score was higher in patients with COPD than in patients without COPD (23.22 ± 12.10 vs. 17.92 ± 11.21, respectively; p = 0.013). Multivariate analysis demonstrated that COPD was independently predictive for intermediate and high SYNTAX score (odds ratio 4.833; 95% confidence interval 2.228–10.485; p < 0.001). Mean FEV1 (% predicted) was 64.7 ± 11.4 and negatively correlated with SYNTAX score in COPD group (r = –0.266 and p = 0.018). The receiver operating characteristic analysis yielded a cutoff value of 65.5 for the FEV1 to predict SYNTAX score ≥ 23, with sensitivity and specificity being 78.6% and 70%, respectively. Conclusions: COPD is a predictor of higher SYNTAX scores. FEV1 is associated with more severe and complex CAD.
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- 2016
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30. Evaluation of Silent Myocardial Ischemia with Single-Photon Emission Computed Tomography/Computed Tomography in Asymptomatic Subjects with Diabetes and Pre-Diabetes
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Nilufer Yildirim, Reyhan Ersoy, Şeyda Türkölmez, Engin Bozkurt, Bekir Cakir, Elif Özdemir, Sefika Burcak Polat, Telat Keleş, and Tahir Durmaz
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lcsh:Medical physics. Medical radiology. Nuclear medicine ,medicine.medical_specialty ,single-photon emission computed tomography/ computed tomography ,lcsh:R895-920 ,Population ,Ischemia ,lcsh:Medicine ,030204 cardiovascular system & hematology ,Single-photon emission computed tomography ,Asymptomatic ,030218 nuclear medicine & medical imaging ,Coronary artery disease ,03 medical and health sciences ,Myocardial perfusion imaging ,0302 clinical medicine ,pre-diabetes ,Internal medicine ,Type 2 diabetes mellitus ,medicine ,Radiology, Nuclear Medicine and imaging ,education ,education.field_of_study ,lcsh:R5-920 ,medicine.diagnostic_test ,business.industry ,lcsh:R ,Odds ratio ,medicine.disease ,silent myocardial ischemia ,Cardiology ,Original Article ,Radiology ,medicine.symptom ,business ,single-photon emission computed tomography/computed tomography ,lcsh:Medicine (General) ,Emission computed tomography - Abstract
The aim of this study was to disclose the prevalence of myocardial ischemia, as detected by adenosine stress myocardial perfusion imaging (MPI) with hybrid single-photon emission computed tomography/computed tomography (SPECT/CT), in asymptomatic diabetic and pre-diabetic patients and to find out whether ischemia predicted the occurrence of adverse cardiac/cerebrovascular events (ACCE) at follow-up.Forty-three diabetic and thirty-five pre-diabetic asymptomatic patients without any history of coronary artery disease, underwent MPI and were followed-up for a 12.8±2.2 (8-19) months for the occurrence of ACCE. Baseline variables that would predict the presence of ischemia and the value of ischemia on MPI for predicting the occurrence of ACCE at follow-up were evaluated by logistic regression analysis.Ischemia was detected in ten (23.3%) of the diabetic and in four (11.4%) of the pre-diabetic patients. The presence of diabetes was the only independent predictor of myocardial ischemia [odds ratio (OR): 12.31, 95% confidence interval (CI): 1.83-82.66; p0.01]. During 12.8±2.2 (8-19) months of follow-up, ACCE was observed in five out of 78 (6.4%) patients. Patients with ischemia were significantly more likely to have ACCE during follow-up as compared to those with normal MPI scans (event rates: 21.4% vs. 3.1%, OR: 8.455 95% CI: 1.264-56.562, p=0.038).Myocardial ischemia as detected by adenosine stress SPECT/CT in a population of asymptomatic patients with diabetes mellitus or pre-diabetes appeared to predict the occurrence of ACCE at follow-up.Amaç: Bu çalışmanın amacı asemptomatik diyabetik ve pre-diyabetik hastalarda stres miyokardiyal perfüzyon tek foton emisyon bilgisayarlı tomografi/bilgisayarlı tomografi miyokard perfüzyon sintigrafisi (MPS) ile miyokardiyal iskemi prevalansını belirlemek ve iskemi bulgularının takipte istenmeyen kardiyak ve serebrovasküler olayları öngörüp görmediğini saptamaktır. Yöntem: Daha önce bilinen koroner arter hastalığı olmayan 43 diyabetik ve 35 pre-diyabetik asemptomatik hastaya MPS yapılarak, hastalar istenmeyen kardiyak/serebrovasküler olaylar açısından ortalama 12,8±2,2 (8-19) ay takip edildi. İskemiyi öngören bazal değişkenler ve MPS’nin takipte istenmeyen kardiyovasküler olayları öngörmedeki değeri lojistik regresyon modeli ile değerlendirildi. Bulgular: Diyabetik hastaların onunda (%23,3) ve pre-diyabetik hastaların dördünde (%11,4) MPS ile iskemi saptandı. Miyokardiyal iskemi açısından tek bağımsız risk faktörü diabetes mellitus varlığı idi (odds ratio (OR): 12,31, %95 güven aralığı (GA): 1,83-82,66; p0,01). Ortalama 12,8±2,2 (8-19) aylık takip süresi boyunca yetmiş sekiz hastanın beşinde (%6,4) istenmeyen kardiyovasküler olay gelişti. Sintigrafide iskemi bulgusu olanların takibinde kardiyovasküler olay gelişme riski, normal MPS bulguları olanlara göre belirgin olarak yüksekti (olay oranı: %21,4 ile %3,1, OR: 8,455 %95 GA: 1,264-56,562, p=0,038). Sonuç: Adenozin stres SPECT/CT ile saptanan iskeminin asemptomatik diyabetik ve pre-diyabetik hastalarda takipte gelişecek olan kardiyovasküler olayları öngördüğü söylenebilir.
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- 2016
31. Prosthetic valve endocarditis 7 months after transcatheter aortic valve implantation diagnosed with 3D TEE
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Serdal Baştuğ, Hacı Ahmet Kasapkara, Nihal Akar Bayram, Cenk Sarı, Tahir Durmaz, Bilge Duran Karaduman, Telat Keleş, Emine Bilen, Mehmet Burak Özen, Engin Bozkurt, Hüseyin Bayram, and Hüseyin Ayhan
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medicine.medical_specialty ,lcsh:Diseases of the circulatory (Cardiovascular) system ,Transcatheter aortic ,Echocardiography, Three-Dimensional ,030204 cardiovascular system & hematology ,Transoesophageal echocardiography ,Transcatheter Aortic Valve Replacement ,03 medical and health sciences ,0302 clinical medicine ,Aortic valve replacement ,Internal medicine ,medicine ,Humans ,Endocarditis ,030212 general & internal medicine ,Prosthetic valve endocarditis ,Aged ,Medicine(all) ,Transcatheter aortic valve implantation ,3D echocardiography ,business.industry ,Rheumatic Heart Disease ,medicine.disease ,Alternative treatment ,Prosthesis Failure ,Surgery ,lcsh:RC666-701 ,Infective endocarditis ,Cardiology ,Female ,Cardiology and Cardiovascular Medicine ,Complication ,business ,Echocardiography, Transesophageal - Abstract
Transcatheter aortic valve implantation (TAVI) was introduced as an alternative treatment for patients with severe symptomatic aortic stenosis for whom surgery would be high-risk. Prosthetic aortic valve endocarditis is a serious complication of surgical AVR (SAVR) with high morbidity and mortality. According to recent cases, post-TAVI prosthetic valve endocarditis (PVE) seems to occur very rarely. We present the case of a 75-year-old woman who underwent TAVI (Edwards Saphien XT) with an uneventful postoperative stay. She was diagnosed with endocarditis using three dimensional (3D) echocardiography on the TAVI device 7 months later and she subsequently underwent surgical aortic valve replacement. Little experience of the interpretation of transoesophageal echocardiography (TEE) and the clinical course and effectiveness of treatment strategies in post-TAVI endocarditis exists. We report a case of PVE in a TAVI patient which was diagnosed with three-dimensional transoesophageal echocardiography (3DTEE).
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- 2016
32. A rare complication of warfarin: late onset warfarin induced skin necrosis
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Yakup Alsancak, Tahir Durmaz, Serkan Sivri, Engin Bozkurt, and Telat Keleş
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medicine.medical_specialty ,Necrosis ,business.industry ,Warfarin therapy ,Warfarin ,Treatment options ,Late onset ,medicine.disease ,Surgery ,Drug withdrawal ,medicine ,Oral anticoagulant ,medicine.symptom ,business ,Complication ,medicine.drug - Abstract
Warfarin is an oral anticoagulant, can lead to skin necrosis quite rarely that is a serious complication. However this complication is observed usually during the first 10 days of treatment, the presented case, as a result of inappropriate drug withdrawal and restarting, has emerged after two years from the start of treatment as late onset. After stopping the warfarin therapy , the patient was treated with oral acetylsalicylic acid and skin necrosis regressed within days without recurrence. In the treatment of this complication, parenterally and the new oral anticoagulant agents are the other treatment options.
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- 2017
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33. Higher neutrophil to lymphocyte ratio is related to a lower ejectionfraction in bicuspid aortic valve patients
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Murat Can Güney, Hüseyin Ayhan, Telat Keleş, Hacı Ahmet Kasapkara, Abdullah Nabi Aslan, Tahir Durmaz, Murat Akçay, Engin Bozkurt, and Zeynep Şeyma Turinay
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Aortic valve ,medicine.medical_specialty ,Neutrophils ,Heart Valve Diseases ,030204 cardiovascular system & hematology ,03 medical and health sciences ,0302 clinical medicine ,Bicuspid aortic valve ,Bicuspid Aortic Valve Disease ,medicine.artery ,Internal medicine ,Ascending aorta ,medicine ,Humans ,Lymphocytes ,030212 general & internal medicine ,Neutrophil to lymphocyte ratio ,Aorta ,Ejection fraction ,Vascular disease ,business.industry ,General Medicine ,medicine.disease ,Pathophysiology ,medicine.anatomical_structure ,Aortic Valve ,cardiovascular system ,Cardiology ,business ,Dilatation, Pathologic - Abstract
Background/aim: Inflammation plays an important role in the pathophysiology of vascular disease. In this study, we aimed to evaluate the associations of neutrophil to lymphocyte ratio (NLR; an indicator of inflammation) with left ventricular ejection fraction and ascending aorta diameter in patients with a bicuspid aortic valve (BAV). Materials and methods: One hundred and thirty-nine consecutive patients with the diagnosis of BAV were enrolled in the study. Complete blood counts were analyzed for neutrophil and lymphocyte levels and NLR. The subjects were separated into two groups based on their ascending aorta diameter. The patients with ascending aorta diameter equal to or above 3.9 cm were included in group 1 whereas those with ascending aorta diameter below 3.9 cm were included in group 2. Results: When the results were compared, it was demonstrated that there was a positive correlation between NLR and ascending aorta diameter (r: 0.485, P = 0.026), whereas there was a negative correlation between NLR and left ventricular end-diastolic diameter (r: 0.475, P = 0.030), left ventricular end-systolic diameter (r: 0.482, P = 0.027), and left ventricular ejection fraction (r: ?0.467, P = 0.033) in BAV patients with ascending aorta dilatation (group 1). Conclusion: NLR is associated with ascending aorta diameter and left ventricular ejection fraction in BAV patients with ascending aorta dilatation.
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- 2016
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34. Aortic Elastic Properties and Myocardial Performance Index Are Impaired in Patients with Lichen Planus
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Engin Bozkurt, Telat Keleş, Elcin Ozdemir, Mehmet Erdoğan, Cemal Koseoglu, Ahmet Göktuğ Ertem, Tahir Durmaz, O Kurmus, Gulsen Akoglu, G Koseoglu, and Akın Aktaş
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Adult ,Male ,medicine.medical_specialty ,Cardiac output ,Tei index ,Aortic Diseases ,Aortic elastic properties ,030204 cardiovascular system & hematology ,030207 dermatology & venereal diseases ,03 medical and health sciences ,Vascular Stiffness ,0302 clinical medicine ,Diabetes mellitus ,medicine.artery ,Internal medicine ,Linear regression ,medicine ,Humans ,Myocardial performance index ,Cardiac Output ,Original Paper ,Aorta ,business.industry ,Lichen Planus ,General Medicine ,Middle Aged ,medicine.disease ,Surgery ,Blood pressure ,medicine.anatomical_structure ,Echocardiography ,Ventricle ,Cardiology ,Female ,Cardiomyopathies ,business ,Body mass index ,Student's t-test - Abstract
Objectives: The aim of this study was to investigate the elastic properties of the aorta and the myocardial performance index of the left ventricle (LV) in patients with lichen planus (LP). Subjects and Methods: A total of 54 patients with LP and 50 controls were enrolled in the study. The 2 groups were well-matched regarding age, gender, body mass index, any smoking history, diabetes mellitus and systolic and diastolic blood pressure (SBP and DBP). The echocardiographic examination was performed on the study subjects and the controls. Aortic elasticity parameters and the myocardial performance index of the LV were calculated. The Student t test, the χ2 test and multiple linear regression were used for the statistical analysis. Results: Aortic strain (AS, 4.77 ± 1.81 vs. 8.95 ± 2.22; p < 0.001) and aortic distensibility (AD, 0.25 ± 0.009 vs. 0.42 ± 0.120; p < 0.001) were significantly lower, and aortic stiffness index β (ASIβ, 3.65 ± 1.03 vs. 2.70 ± 0.91; p < 0.001) was significantly higher in the LP group than in the controls. The myocardial performance index (Tei index) was significantly higher in the LP group than in the control group (p = 0.001). The duration of the LP was negatively correlated with AS (r = -0.364, p < 0.001) and AD (r = -0.279, p = 0.006), and positively correlated with the Tei index (r = 0.324, p = 0.001) and ASIβ (r = 0.364, p < 0.001). After adjustment for relevant confounders (age, male gender, smoking, SBP, DBP, diabetes mellitus and low- and high-density lipoprotein cholesterol), LP and its duration were still associated with AS, AD and ASIβ. Conclusion: In this study, AS and AD were lower and ASIβ and myocardial performance index higher in LP patients than in controls.
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- 2015
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35. Successful Percutaneous Coronary Intervention for Anomalous Coronary Artery Origin
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Hüseyin Ayhan, Abdullah Nabi Aslan, Engin Bozkurt, Telat Keleş, Hacı Ahmet Kasapkara, and Tahir Durmaz
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lcsh:Diseases of the circulatory (Cardiovascular) system ,medicine.medical_specialty ,Coronary artery anomalies ,business.industry ,medicine.medical_treatment ,percutaneous coronary intervention ,lcsh:R ,lcsh:Medicine ,Percutaneous coronary intervention ,Anomalous coronary artery origin ,lcsh:RC666-701 ,Internal medicine ,medicine ,Cardiology ,coronary angiography ,business - Abstract
Congenital anomalies of coronary arteries, although rare, can result in myocardial ischemia and sudden cardiac death. The incidence of coronary artery anomalies is reported to be 1-2% in the general population. We report two cases in which coronary angiography revealed anomalous origin of the right coronary and left main coronary arteries, respectively. Both cases were successfully treated by percutaneous coronary intervention.
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- 2015
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36. Evaluation of Autoimmune Thyroid Disease in Patients with Mitral Valve Prolapse
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Abdullah Nabi Aslan, Engin Bozkurt, Cenk Sarı, Serdal Baştuğ, Hacı Ahmet Kasapkara, Nihal Akar Bayram, Emine Bilen, Tahir Durmaz, Hüseyin Ayhan, and Telat Keleş
- Subjects
endocrine system ,Pathology ,medicine.medical_specialty ,endocrine system diseases ,medicine.diagnostic_test ,business.industry ,Thyroid disease ,Thyroid ,medicine.disease ,Thyroid function tests ,Gastroenterology ,Anti-thyroid autoantibodies ,Autoimmune thyroiditis ,medicine.anatomical_structure ,Internal medicine ,medicine ,Mitral valve prolapse ,Thyroid function ,business ,Lymphocytic Thyroiditis - Abstract
Objective: The high incidence of non-organ specific autoantibodies in patients with mitral valve prolapse (MVP) may suggest an association between MVP and autoimmune diseases. A higher incidence of MVP in patients with chronic lymphocytic thyroiditis and Graves' disease has been demonstrated in various studies. In particular, an increased incidence of MVP in patients with auto- immune thyroid disease characterized with hyperthyroidism may suggest an association between MVP and thyroid functions. To the best of our knowledge, there is a lack of literature regarding the evaluation of autoimmune thyroid diseases in patients with MVP. This study primarily aimed to evaluate the autoimmune thyroid disease using thyroid ultrasonography and autoimmune thyroid antibodies in patients with MVP. Materials and Methods: Thyroid function tests, thyroid autoimmune antibodies, and thyroid ultrasonographic examination were evaluated in 30 patients with MVP (19 females and 11 males; mean age: 29.6±9.3 years) and 30 healthy volunteers (19 females and 11 males; mean age: 27.6±7.5 years). Results: Two groups were similar in terms of demographical and clinical characteristics. Evaluation of the thyroid functions, auto- immune thyroid antibodies, and thyroid ultrasonography revealed no statistically significant difference between the study groups. Conclusion: The results of the study suggest no association between MVP and autoimmune thyroid diseases. This requires further clarification with large-scaled studies.
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- 2015
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37. Impact of transcatheter aortic valve implantation in patients with reduced ejection fraction
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Emine Bilen, Telat Keleş, Serdal Baştuğ, Hacı Ahmet Kasapkara, Hüseyin Ayhan, Murat Akçay, Engin Bozkurt, Abdullah Nabi Aslan, Tahir Durmaz, Nihal Akar Bayram, and Cenk Sarı
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Male ,Cardiac Catheterization ,medicine.medical_specialty ,Time Factors ,Asymptomatic ,Ventricular Function, Left ,Ventricular Dysfunction, Left ,Aortic valve replacement ,Risk Factors ,Statistical significance ,Internal medicine ,Humans ,Medicine ,Aged ,Aged, 80 and over ,Heart Valve Prosthesis Implantation ,Ejection fraction ,business.industry ,Mortality rate ,Stroke Volume ,Aortic Valve Stenosis ,Recovery of Function ,General Medicine ,Stroke volume ,medicine.disease ,Stenosis ,Treatment Outcome ,Aortic Valve ,Heart Valve Prosthesis ,Heart failure ,cardiovascular system ,Cardiology ,Female ,medicine.symptom ,Cardiology and Cardiovascular Medicine ,business - Abstract
Background: Aortic stenosis increases with age. According to guidelines, left ventricular systolic dysfunction is an indication for aortic valve replacement, even in asymptomatic patients. There is no clear data on the application of transcatheter aortic valve implantation (TAVI), which is a method showing continuous improvement in recent years, in patients with reduced ejection fraction (REF) having a poor prognosis for surgical aortic valve replacement. We therefore aimed to investigate the effect of TAVI on left ventricular ejection fraction (LVEF) and also its efficacy and safety in patients with REF. Methods and results: The study included 104 patients who underwent transfemoral TAVI in our clinic. The patients were divided into two groups: LVEF ≤ 45% (REF group, n = 28) and LVEF > 45% (preserved ejection fraction [PEF] group, n = 76). Follow-up measurements were performed at baseline, discharge, 1st, 6th and 12th months. No statistical difference was found between the groups with respect to complications and mortality rates. A statistically significant difference was detected in LVEF after TAVI, either in all patients (53.9 ± 14.6, 57.0 ± 11.4, 59.4 ± 8.4, 60.4 ± 6.8, 63.2 ± 3.9, respectively, at baseline, discharge, 1st, 6th and 12th months, p < 0.001) or in the groups separately. A statistically significant increase in LVEF (p < 0.001) was determined at discharge, 1st, 6th and 12th months, whereas LVEF increased in all follow-ups of the PEF group, however this elevation reached a statistical significance only at the 1st month (p = 0.04). Conclusions: Our study has shown the positive effect of TAVI on LVEF and its effective and safe applicability in patients with REF.
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- 2015
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38. Short-term effect of transcatheter aortic valve implantation on QT dispersion
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Murat Akçay, Nihal Akar Bayram, Hüseyin Ayhan, Tahir Durmaz, Bilge Duran Karaduman, Cenk Sarı, Hacı Ahmet Kasapkara, Engin Bozkurt, Emine Bilen, Cemal Köseoğlu, Serdal Baştuğ, and Telat Keleş
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Male ,medicine.medical_specialty ,Transcatheter Aortic Valve Replacement ,Electrocardiography ,Cardiac Conduction System Disease ,Heart Conduction System ,Internal medicine ,Humans ,Medicine ,Repolarization ,Transcatheter aortic valve implantation,QT dispersion,aortic stenosis ,Aged ,Brugada Syndrome ,Brugada syndrome ,Pressure overload ,medicine.diagnostic_test ,business.industry ,Arrhythmias, Cardiac ,Aortic Valve Stenosis ,General Medicine ,medicine.disease ,Stenosis ,Qt dispersion ,Aortic valve stenosis ,Cardiology ,Female ,Electrical conduction system of the heart ,business - Abstract
Background/aim: Electrophysiological changes are observed following mechanical stretches due to pressure overload in patients with severe aortic stenosis (AS). The electrical instability occurs after depolarization and dispersion of repolarization. The aim of this study was to evaluate changes in ventricular repolarization following transcatheter aortic valve implantation (TAVI). Materials and methods: The study population included 100 consecutive patients with severe AS that underwent TAVI. Electrocardiography (ECG) was performed at baseline, immediately after TAVI, and 1 week after TAVI. Results: The mean age of the patients was 78.2 ± 7.2 years. Thirty-four (34%) of the patients were male and 66 (66%) were female. Compared to the baseline, mean QT dispersion (QTd) immediately after TAVI and 1 week after TAVI decreased significantly (82.8 ± 26.5, 75.6 ± 25.2, and 65.8 ± 28.3, respectively, P < 0.001). Likewise, compared to the baseline, mean corrected QTd (QTcd) immediately after TAVI and 1 week after TAVI decreased significantly (84.7 ± 25.2, 76.7 ± 30.8, and 69.1 ± 31.4, respectively, P < 0.001). Conclusion: QTd is indicative of heterogeneity of ventricular refractoriness and is prolonged in patients with AS. Following TAVI, a decrease in QTd might reduce the risk of ventricular arrhythmia in patients with severe AS.
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- 2015
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39. Importance Of Nitroglycerin Applications in the Evaluation Of Coronary Lesions During Coronary Angiography
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Ahmet Göktuğ Ertem, Hüseyin Ayhan, Telat Keleş, Abdullah Nabi Aslan, Serdal Baştuğ, Engin Bozkurt, Ömer Faruk Çiçek, Tahir Durmaz, Cenk Sarı, Hüseyin Bayram, and Hacı Ahmet Kasapkara
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Coronary angiography ,medicine.medical_specialty ,business.industry ,Internal medicine ,medicine ,Cardiology ,General Medicine ,business ,Nitroglycerin ,medicine.drug - Published
- 2015
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40. Dynamic thiol/disulphide homeostasis and its prognostic value in patients with non-ST elevation-acute coronary syndromes
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Tahir Durmaz, Hacı Ahmet Kasapkara, Melike Polat, Serkan Sivri, Engin Bozkurt, Ozcan Erel, Yakup Alsancak, and Kırşehir Ahi Evran Üniversitesi, Tıp Fakültesi, Dahili Tıp Bilimleri, Kardiyoloji ABD
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Male ,medicine.medical_specialty ,dynamic thiol/disulphide homeostasis ,medicine.disease_cause ,Pathogenesis ,Internal medicine ,Medicine ,Homeostasis ,Humans ,Disulfides ,Sulfhydryl Compounds ,Acute Coronary Syndrome ,Major adverse cardiovascular event ,Aged ,chemistry.chemical_classification ,Aged, 80 and over ,Framingham Risk Score ,business.industry ,ST elevation ,Middle Aged ,Prognosis ,Surgery ,Oxidative Stress ,Endocrinology ,chemistry ,non-ST elevation acute coronary syndrome ,Thiol ,GRACE risk score ,Female ,Cardiology and Cardiovascular Medicine ,business ,major adverse cardiovascular event ,Oxidative stress ,Mace - Abstract
WOS: 000425965300018 PubMed ID: 29131293 Background: Cardiovascular diseases are still one of the leading causes of death in industrialised countries, and oxidative stress plays an important role in the pathogenesis of acute coronary syndromes (ACS). The dynamic thiol/disulphide homeostasis plays an important role in maintaining the oxidant-antioxidant balance. Aim: We aimed to demonstrate the relationship between dynamic thiol/disulphide homeostasis parameters and non-ST elevation ACS (NSTE-ACS). Methods: Patients with NSTE-ACS (n = 210) and a control group (n = 185) were included in the study. The GRACE risk score and the development of major adverse cardiovascular event (MACE) were used to evaluate the prognosis. Results: Native thiol, total thiol, disulphide/native thiol, disulphide/total thiol, and native thiol/total thiol levels were found to be lower in the NSTE-ACS group (p < 0.001). There was a statistically significant difference between native and total thiol levels in the GRACE risk score subgroups (p < 0.001). There was a correlation between MACE and native thiol levels (p = 0.04). Conclusions: Consequently, the dynamic thiol/disulphide homeostasis parameters were significantly different in the NSTE-ACS group and may be used to predict prognosis in this patient group.
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- 2017
41. The effect of transcatheter aortic valve implantation on mean platelet volume
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Kemal Eşref Erdoğan, Bilge Duran Karaduman, Hüseyin Ayhan, Abdullah Nabi Aslan, Cenk Sarı, Tahir Durmaz, Serdal Baştuğ, Mehmet Burak Özen, Engin Bozkurt, Telat Keleş, and Hacı Ahmet Kasapkara
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Male ,medicine.medical_specialty ,Transcatheter aortic ,Hemodynamics ,030204 cardiovascular system & hematology ,Risk Assessment ,Severity of Illness Index ,Transcatheter Aortic Valve Replacement ,03 medical and health sciences ,0302 clinical medicine ,Severe aortic stenosis,transcatheter aortic valve implantation,mean platelet volume ,Internal medicine ,Severity of illness ,medicine ,Humans ,In patient ,030212 general & internal medicine ,Mean platelet volume ,Endothelial dysfunction ,Aged ,Heart Valve Prosthesis Implantation ,business.industry ,General Medicine ,Aortic Valve Stenosis ,After discharge ,medicine.disease ,Stenosis ,Treatment Outcome ,Cardiology ,Female ,business ,Mean Platelet Volume - Abstract
Background/aim: Transcatheter aortic valve implantation (TAVI) is an innovative approach to the treatment of aortic stenosis (AS) as an alternative to surgery in high-risk patients. Mean platelet volume (MPV) is considered an indicator of endothelial dysfunction, platelet function, and activation. In this study, we aimed to investigate MPV changes in patients undergoing TAVI. Materials and methods: This study included 100 patients diagnosed with symptomatic severe AS and treated with TAVI between July 2011 and August 2013. Hematological parameters of the patients were examined prior to the procedure and 24 h, 1 month, and 6 months after TAVI. Results: A statistically significant change in patients' MPV was detected after TAVI compared to the baseline situation (P: 0.001). While no statistically significant change was observed on the first day after TAVI, at discharge, compared to the baseline situation, a statistically significant decrease was seen 1 month and 6 months after discharge. Conclusion: We have demonstrated a decrease in MPV after surgery compared to the value before surgery. We have sought to propound the change in MPV as an indication of endothelial function after TAVI.
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- 2017
42. Diminished serum paraoxonase activity in patients with coronary artery calcification
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Kemal Eşref Erdoğan, Nurdan Cay, Nihal Akar Bayram, Murat Akçay, Ozcan Erel, Engin Bozkurt, Tahir Durmaz, Emine Bilen, Telat Keleş, and Hüseyin Ayhan
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Male ,medicine.medical_specialty ,Coronary Artery Disease ,Significant negative correlation ,Internal medicine ,medicine ,Humans ,In patient ,cardiovascular diseases ,Serum paraoxonase ,Coronary atherosclerosis ,Aged ,Receiver operating characteristic ,biology ,Aryldialkylphosphatase ,business.industry ,Paraoxonase ,Calcinosis ,nutritional and metabolic diseases ,Venous blood ,Middle Aged ,Coronary artery calcification ,cardiovascular system ,biology.protein ,Cardiology ,Female ,Radiology ,Cardiology and Cardiovascular Medicine ,business - Abstract
Background: Previous studies have shown an association between paraoxonase (PON) activity and the presence and severity of coronary atherosclerosis. Aim: To demonstrate any association between serum PON activity and the presence and severity of coronary artery calcification (CAC). Methods: A total of 156 consecutive patients having the suspicion of coronary atherosclerosis or needing risk stratification for cardiovascular events were included in the present study. Peripheral venous blood samples of all participants to measure serum PON activity were collected before undergoing multidetector computed tomography, which was used to determine the presence and quantity of CAC. Results: Serum PON-1 levels were lower in the CAC group compared to the no CAC group (60 [35–96] U/L vs. 291 [230–371] U/L, respectively, p < 0.001). There was a significant negative correlation between total CAC score and PON (r2 = 0.335, p < 0.001). In multivariate analysis, the significant and independent predictors of the presence of CAC were male sex, high-sensitive C-reactive protein, and PON. Similarly, increased PON was significantly and independently associated with freedom from CAC. In receiver operating characteristics analysis, PON level < 197 U/L had 87% sensitivity, 91% specificity, 93% positive predictive value, and 85% negative predictive value in predicting CAC. Conclusions: Diminished serum PON activity is significantly and independently associated with the presence and severity of CAC, and vice versa.
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- 2014
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43. Atriyal fibrilasyon tedavisinde güncel yaklaşımlar
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Cemal Koseoglu, Serdal Baştuğ, Nihal Akar Bayram, Engin Bozkurt, Tahir Durmaz, Hacı Ahmet Kasapkara, Telat Keleş, Emine Bilen, Cenk Sarı, and Hüseyin Ayhan
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lcsh:R5-920 ,medicine.medical_specialty ,business.industry ,Incidence (epidemiology) ,lcsh:R ,lcsh:Medicine ,Rate control ,Rhythm control ,Atrial fibrillation ,medicine.disease ,rhythm ,Clinical Practice ,Internal medicine ,Cardiology ,Medicine ,atrial fibrillation ,Atriyal fibrilasyon,ritim,antikoagülasyon ,atrial fibrillation,rhythm,anticoagulation ,lcsh:Medicine (General) ,business - Abstract
Atrial fibrillation (AF) is the most common sustained arrhythmia encountered in clinical practice. Its incidence increases with age. AF is classified into subtypes according to the duration and/or able to provide sinus rhytym. İnitially, patients should be evaluated for rhythm or rate control for appropriate treatment. Second stage of strategy aimed to investigate the feasibility of anticoagulation therapy. Recently, due to the progress made in treatment with rhythm control and anticoagulation therapy, either American or European guidelines have been renovated. These developments have taken place in the newly published guide. In this article, the current change in the management of AF is discussed., Atriyal fibrilasyon (AF) klinik pratikte en sık görülen disritmi olup insidansı yaşla birlikte artış göstermektedir. Sinüs ritminini sağlayabilmeye ve oluşum süresine göre AF sınıflandırılmaktadır. Tedavi, ilk olarak hastaların ritm kontrolü veya hız kontrolü açısından uygunluğunun değerlendirilmesiyle başlar. Strateji belirlendikten sonra ikinci aşamada antikoagülan tedavinin gerekliliği araştırılır. Son zamanlarda hem ritm kontrolü hem de antikoagülan tedavide kaydedilen gelişmeler gerek Amerikan gerekse Avrupa kılavuzlarının birbiri ardına yenilenmesini gerekli kılmıştır. Bu gelişmeler yeni yayınlanan kılavuzlarda yerini almış olup bu yazıda atriyal fibrilasyon tedavisinde yaşanan bu güncel değişimler ele alınmıştır.
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- 2014
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44. Left Main Coronary Artery Obstruction by Dislodged Native-Valve Calculus after Transcatheter Aortic Valve Replacement
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Telat Keleş, Murat Akçay, Cenk Sarı, Emine Bilen, Hüseyin Ayhan, Abdullah Nabi Aslan, Engin Bozkurt, Tahir Durmaz, and Kemal Eşref Erdoğan
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Aortic valve ,Cardiac Catheterization ,medicine.medical_specialty ,medicine.medical_treatment ,Case Reports ,Coronary Angiography ,Prosthesis Design ,Severity of Illness Index ,Calculi ,Fatal Outcome ,Percutaneous Coronary Intervention ,Valve replacement ,Internal medicine ,medicine ,Calculus ,Humans ,Vascular Calcification ,Aged ,Cardiac catheterization ,Heart Valve Prosthesis Implantation ,business.industry ,Percutaneous coronary intervention ,Aortic Valve Stenosis ,medicine.disease ,Surgery ,Stenosis ,Treatment Outcome ,medicine.anatomical_structure ,Coronary Occlusion ,Coronary occlusion ,Aortic Valve ,Heart Valve Prosthesis ,Aortic valve stenosis ,Cardiology ,Female ,Tomography, X-Ray Computed ,Cardiology and Cardiovascular Medicine ,business ,Echocardiography, Transesophageal ,Artery - Abstract
Transcatheter aortic valve replacement can be an effective, reliable treatment for severe aortic stenosis in surgically high-risk or ineligible patients. However, various sequelae like coronary artery obstruction can occur, not only in the long term, but also immediately after the procedure. We present the case of a 78-year-old woman whose left main coronary artery became obstructed with calculus 2 hours after the transfemoral implantation of an Edwards Sapien XT aortic valve. Despite percutaneous coronary intervention in that artery, the patient died. This case reminds us that early recognition of acute coronary obstruction and prompt intervention are crucial in patients with aortic stenosis who have undergone transcatheter aortic valve replacement.
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- 2014
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45. Early outcomes of transcatheter aortic valve replacement in patients with severe aortic stenosis: single center experience
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Serdal Baştuğ, Tahir Durmaz, Telat Keleş, Murat Akçay, Nihal Akar Bayram, Cenk Sarı, Abdullah Nabi Aslan, Emine Bilen, Hüseyin Ayhan, and Engin Bozkurt
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medicine.medical_specialty ,Original Paper ,Transcatheter aortic ,business.industry ,medicine.medical_treatment ,medicine.disease ,Single Center ,Surgery ,Stenosis ,Valve replacement ,Aortic valve replacement ,Internal medicine ,cardiovascular system ,medicine ,Cardiology ,transcatheter aortic valve replacement ,High surgical risk ,In patient ,Cardiology and Cardiovascular Medicine ,Symptomatic aortic stenosis ,business - Abstract
Introduction Transcatheter aortic valve implantation is a promising alternative to high risk surgical aortic valve replacement. The procedure is mainly indicated in patients with severe symptomatic aortic stenosis who cannot undergo surgery or who are at very high surgical risk. Aim Description early results of our single-center experience with balloon expandable aortic valve implantation. Material and methods Between July 2011 and August 2012, we screened in total 75 consecutive patients with severe aortic stenosis and high risk for surgery. Twenty-one of them were found ineligible for transcatheter aortic valve implantation (TAVI) because of various reasons, and finally we treated a total of 54 patients with symptomatic severe aortic stenosis (AS) who could not be treated by open heart surgery (inoperable) because of high-risk criteria. The average age of the patients was 77.4 ±7.1; 27.8% were male and 72.2% were female. The number of patients in NYHA class II was 7 while the number of patients in class III and class IV was 47. Results The average mortality score of patients according to the STS scoring system was 8.5%. Pre-implantation mean and maximal aortic valve gradients were measured as 53.2 ±14.1 mm Hg and 85.5 ±18.9 mm Hg, respectively. Post-implantation mean and maximal aortic valve gradients were 9.0 ±3.0 and 18.2 ±5.6, respectively (p < 0.0001). The left ventricular ejection fraction was calculated as 54.7 ±14.4% before the operation and 58.0 ±11.1% after the operation (p < 0.0001). The duration of discharge after the operation was 5.29 days, and a statistically significant correlation between the duration of discharge after the operation and STS was found (r = 0385, p = 0.004). Conclusions We consider that with decreasing cost and increasing treatment experience, TAVI will be used more frequently in broader indications. Our experience with TAVI using the Edwards-Sapien XT (Edwards Lifesciences, Irvine, CA) devices suggests that this is an effective and relatively safe procedure for the treatment of severe aortic stenosis in suitable patients.
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- 2014
46. Hepcidin is Linked to Hypoferremia in Patients With Rheumatic Valve Disease
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Murat Akçay, Engin Bozkurt, Emine Bilen, Tahir Durmaz, Telat Keleş, Hüseyin Ayhan, Ekrem Yeter, and Hacı Ahmet Kasapkara
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Adult ,Male ,medicine.medical_specialty ,Iron ,Heart Valve Diseases ,Inflammation ,Hematocrit ,Hepcidins ,Hepcidin ,Internal medicine ,medicine ,Humans ,In patient ,medicine.diagnostic_test ,biology ,business.industry ,Rheumatic Heart Disease ,Acute-phase protein ,Hematology ,General Medicine ,Metabolism ,Middle Aged ,C-Reactive Protein ,Endocrinology ,Ferritins ,Serum iron ,biology.protein ,Female ,Hemoglobin ,medicine.symptom ,business - Abstract
Background and Aim: Hepcidin has been shown to be an acute phase reactant, induced by infection and inflammation. Ongoing inflammation was shown in rheumatic valve disease (RVD). In this study we want to investigate whether there is a relationship between inflammation and impaired iron metabolism and the role of hepcidin on serum iron levels. Methods and Results: Fourty-six patients with RVD and 34 healthy individuals were included in the study. Serum hepcidin, high-sensitive C-reactive protein (hs-CRP), hemoglobin, hematocrit, iron, iron-binding capacity, ferritin levels were measured. Serum hepcidin levels were significantly increased in patients with RVD than in control group (316 ± 121 ng/mL vs 435 ± 126 ng/mL; P < .001). Serum hs-CRP levels were no significantly higher in the patient group in than in the control group (3.9 ± 3.6 mg/L vs 3.5 ± 3.7 mg/L; P = .521). Conclusion: Hepcidin levels are decreased independently from hs-CRP levels as a compensatory mechanism to increase the iron absorption in response to decreased serum iron levels in patients with RVD.
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- 2014
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47. Improvement of right ventricular function with transcatheter aortic valve implantation
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Tahir Durmaz, Engin Bozkurt, Hacı Ahmet Kasapkara, Cenk Sarı, Hüseyin Ayhan, Abdullah Nabi Aslan, and Telat Keleş
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Male ,medicine.medical_specialty ,Femoral artery ,Doppler imaging ,Transcatheter Aortic Valve Replacement ,Aortic valve replacement ,Internal medicine ,medicine.artery ,medicine ,Humans ,Prospective Studies ,Subclavian artery ,Aged ,Aged, 80 and over ,Ejection fraction ,Ventricular function ,business.industry ,Aortic Valve Stenosis ,medicine.disease ,Treatment Outcome ,medicine.anatomical_structure ,Echocardiography ,Ventricle ,Ventricular Function, Right ,cardiovascular system ,Ventricular pressure ,Cardiology ,Female ,Radiology ,Cardiology and Cardiovascular Medicine ,business ,Follow-Up Studies - Abstract
It has been demonstrated that right ventricular systolic dysfunction develops soon after surgical aortic valve replacement (s-AVR). While the impact of s-AVR or TAVI on the function of the left ventricle has been studied with various imaging modalities, little is known about the impact on right ventricular function (RVF). In the current study, we evaluated the impact of TAVI on RVF using conventional echocardiography parameters.Echocardiography was performed prior to 24 h, 1 month and 6 months after TAVI. RVF was assessed using (1) tricuspid annular plane systolic excursion (TAPSE); (2) RV Tissue Doppler Imaging (S'); (3) right ventricular systolic pressure (RVSP); (4) Fractional area change (FAC); and (5) RV ejection fraction (RVEF). TAVI was performed through the subclavian artery in two patients and femoral artery in 48 patients with an Edwards Sapien XT valve. TAVI was performed on 50 patients between the dates of December 2012 and June 2013. After TAVI, a statistically significant improvement was observed for all parameters related to RVF (RVSP, RVEF, TAPSE, FAC, RVTDI S'). During the 1st and 6th months this statistically significant improvement continued in TAPSE and FAC, and there was no deterioration in RVSP, RVEF, and RVTDI S during the 1st month but a statistically significant improvement continued in the 6th month.RVF assessed by conventional echocardiography did not deteriorate after TAVI in early and midterm follow-up. Further, TAVI provides improvement of RVF and can safely and efficiently be performed in patients with impaired RVF.
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- 2014
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48. Type 1 Giant Coronary Aneurysm
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Hüseyin Ayhan, Engin Bozkurt, Telat Keleş, Tahir Durmaz, and Cemal Koseoglu
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Coronary artery aneurysm ,medicine.medical_specialty ,business.industry ,Spontaneous dissection ,medicine.disease ,Coronary Aneurysms ,medicine.anatomical_structure ,Aneurysm ,Right coronary artery ,medicine.artery ,Internal medicine ,cardiovascular system ,medicine ,Cardiology ,cardiovascular diseases ,Myocardial infarction ,Radiology ,Normal coronary arteries ,business ,Artery - Abstract
Coronary artery aneurysm is a rare anomaly and is defined as the expansion of the diameters of normal coronary arteries by ≥1.5 times. Aneurysms reaching 4 times the normal size or 8 mm in diameter are defined as giant coronary aneurysms. Giant aneurysms involved in all of the left main coronary artery (LMCA), left anterior descending artery (LAD), and right coronary artery (RCA) are very rare. Here we report a case of a 47-year-old man presenting with non-ST elevation myocardial infarction and LMCA, RCA, and LAD coronary giant aneurysm as well as spontaneous dissection of the distal LAD.
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- 2015
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49. Assessment of left ventricular function by strain–strain rate echocardiography in patients with celiac disease
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Sevil Özer Sarı, Engin Bozkurt, Emine Bilen, Nihal Akar Bayram, Hüseyin Ayhan, Tahir Durmaz, Fatma Ebru Akin, Telat Keleş, Osman Ersoy, Cenk Sarı, Serdal Baştuğ, and Aylin Demirezer Bolat
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Adult ,Male ,medicine.medical_specialty ,Malabsorption ,Heart Ventricles ,Diastole ,Doppler echocardiography ,Ventricular Function, Left ,Internal medicine ,Humans ,Medicine ,Subclinical infection ,E/A ratio ,medicine.diagnostic_test ,business.industry ,Stroke Volume ,General Medicine ,Stroke volume ,Strain rate ,medicine.disease ,Echocardiography, Doppler ,Celiac Disease ,medicine.anatomical_structure ,Ventricle ,Case-Control Studies ,Cardiology ,Female ,business - Abstract
Celiac is predominantly a disease of the small intestine characterized by chronic malabsorption in genetically susceptible individuals who ingest grains containing gluten, such as wheat, barley, and rye. In the present study, we evaluate left ventricular function in patients with celiac disease by using strain and strain rate echocardiography imaging. Materials and methods: Twenty celiac patients and 20 healthy controls were included in this study. Left ventricle systolic and diastolic functions were evaluated with standard 2-dimension, M-mode, conventional Doppler echocardiography. Strain and strain rate parameters were obtained for 8 segments of the left ventricle. Results: There were no significant differences between patients and controls regarding left ventricle function as assessed by 2-dimensional, M-mode, conventional Doppler. Differences between strain rate values did not reach statistical significance, but when strain and average strain values were taken into consideration, statistically significant differences were found between the groups. Conclusion: We determined the subclinical effect of celiac disease on left ventricular systolic function by using strain echocardiography imaging for the first time in the literature. We showed that evaluation of the cardiac involvement in celiac patients by sophisticated echocardiography techniques is essential.
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- 2014
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50. The Importance of Echocardiography in Transcatheter Aortic Valve Implantation
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Murat Akçay, Hüseyin Ayhan, Engin Bozkurt, Telat Keles, Tahir Durmaz, Cenk Sarı, Emine Bilen, and Nihal A. Bayram
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Aortic valve ,medicine.medical_specialty ,business.industry ,Mortality rate ,Disease ,medicine.disease ,Surgery ,Stenosis ,medicine.anatomical_structure ,Aortic valve replacement ,Mitral valve ,Internal medicine ,Aortic valve stenosis ,cardiovascular system ,medicine ,Cardiology ,Radiology, Nuclear Medicine and imaging ,Cardiology and Cardiovascular Medicine ,business ,Cardiac imaging - Abstract
Valvular heart diseases cause serious health problems in Turkey as well as in Western countries. According to a study conducted in Turkey, aortic stenosis (AS) is second after mitral valve disease among all valvular heart diseases. AS is frequently observed in elderly patients who have several cardiovascular risk factors and comorbidities. In symptomatic severe AS, surgical aortic valve replacement (AVR) is a definitive treatment. However, in elderly patients with left ventricular dysfunction and comorbidities, the risk of operative morbidity and mortality increases and outweighs the gain obtained from AVR surgery. As a result, almost one-third of the patients with serious AS are considered ineligible for surgery. Transcatheter aortic valve implantation (TAVI) is an effective treatment in patients with symptomatic severe AS who have high risk for conventional surgery. Since being performed for the first time in 2002, with a procedure success rate reported as 95% and a mortality rate of 5%, TAVI has become a promising method. Assessment of vascular anatomy, aortic annular diameter, and left ventricular function may be useful for the appropriate selection of patients and may reduce the risk of complications. Cardiac imaging methods including 2D and 3D echocardiography and multidetector computed tomography are critical during the evaluation of suitable patients for TAVI as well as during and after the procedure. In this review, we describe the role of echocardiography methods in clinical practice for TAVI procedure in its entirety, i.e. from patient selection to guidance during the procedure, and subsequent monitoring.
- Published
- 2013
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