21 results on '"Güler GB"'
Search Results
2. Optimizing Device Selection in Percutaneous Paravalvular Leak Closure: A Comparative Study of Different Transthoracic and Transesophageal Echocardiographic Techniques.
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Tekin M, Güler GB, Çiçek M, Tanboğa İH, Pysz P, Güler A, Demir AR, Efe Y, Atmaca S, Pay D, Kalkan AK, and Ertürk M
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Background: Clinically significant paravalvular leak (PVL) may complicate both surgical and transcatheter valve implantation. Percutaneous PVL closure (PPVLC) is becoming an increasingly attractive alternative to redo surgery, with demonstrated lower mortality and morbidity rates. Echocardiographic techniques are crucial for accurate diagnosis, defect sizing, and determining the appropriate size of the sealing devices., Aims: There is no consensus on the optimal imaging modality for PVLs. We aimed to compare transthoracic and transesophageal echocardiographic measurements to accurately determine defect size and estimate device size., Methods: We reviewed hospital records to identify patients diagnosed with moderate to severe and severe PVL from 2018 to 2024. A total of 81 patients who underwent PPVLC were evaluated. Eight of these patients were excluded due to unsuccessful PPVLC, leaving 73 patients who were successfully treated. The defect size for all patients was evaluated using 2D transthoracic echocardiography (TTE), 2D transesophageal echocardiography (TEE), direct 3D TEE cropped volume rendering vena contracta (VC) measurement, and 3D TEE multiplanar reconstruction (3D TEE MPR)., Results: Among the 73 patients, 42 underwent aortic PPVLC and 31 underwent mitral PPVLC. Proportional odds logistic regression analysis identified 3D TEE MPR measurement as the strongest predictor of device size accuracy, both overall and within the aortic/mitral subgroups. In the mitral subgroup, the predictive power of direct 3D TEE cropped volume rendering VC measurement and 3D TEE MPR measurement were similar. Furthermore, a cut-off value of 7 mm was identified for hemodynamically significant jets as measured by 3D methods., Conclusion: Our findings suggest that using 3D TEE MPR significantly improves the accuracy of device size selection in both mitral and aortic PVL. Additionally, direct 3D TEE cropped volume rendering VC measurement can serve as a viable alternative for patients with mitral PVL., (© 2025 Wiley Periodicals LLC.)
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- 2025
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3. The effect of disopyramide therapy on functional capacity improvement in patients with obstructive hypertrophic cardiomyopathy.
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Güler A, Erata YE, Demirtola Aİ, Türkmen İ, Atmaca S, Şahin H, Aydın S, Almasri M, Tekin M, Coşkun G, Uygur B, Cansever AT, and Güler GB
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- Humans, Male, Female, Middle Aged, Treatment Outcome, Anti-Arrhythmia Agents therapeutic use, Aged, Follow-Up Studies, Adult, Ventricular Outflow Obstruction drug therapy, Ventricular Outflow Obstruction physiopathology, Retrospective Studies, Cardiomyopathy, Hypertrophic drug therapy, Cardiomyopathy, Hypertrophic physiopathology, Disopyramide therapeutic use, Disopyramide administration & dosage
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Background: Hypertrophic cardiomyopathy (HCM) is characterized by left ventricular outflow tract obstruction (LVOTO), leading to symptoms and adverse outcomes. Disopyramide, with its negative inotropic effects, is commonly used to reduce LVOTO in obstructive HCM (HOCM). This study evaluates the impact of disopyramide on functional capacity in HOCM patients., Methods: Symptomatic HOCM patients evaluated between October 2021 and May 2024 were divided into two groups: those receiving disopyramide and those treated with beta-blockers or calcium channel blockers due to disopyramide unavailability. A treatment response was defined as at least a 1-stage improvement in NYHA class. Clinical and laboratory data, including NT-proBNP levels and LVOT gradient, were compared between groups., Results: A total of 127 patients were included (median age 54.0 years, 58.2% male). 79% of patients were in NYHA class 2. After follow-up, 62% of the disopyramide group (the mean follow-up duration was 15.2 months, and the mean daily dose was 395 mg) showed at least a 1-stage improvement in functional capacity, compared to 26% in the control group. Disopyramide use and presence of extent LGE were independent predictors of functional improvement. Despite functional gains, there was no difference in overall clinical outcomes between the groups. Disopyramide-related side effects were minimal, and no patients discontinued due to QT prolongation., Conclusions: Disopyramide significantly improved functional capacity in HOCM patients, with 62% achieving a 1-stage NYHA improvement compared to 26% in the control group. These results highlight the need for better accessibility to disopyramide in regions where it is difficult to obtain., Competing Interests: Declaration of competing interest The authors have nothing to declare., (Copyright © 2024 Elsevier B.V. All rights reserved.)
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- 2025
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4. Relation of thumb-palm test with ascending aortic diameter and aortic regurgitation.
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Doğan R, Saygı M, Birdal O, Gülcü O, Güler GB, Şeker MC, Atae MY, Güler A, Gökçe K, Şen D, Bulut M, Yücel E, Özkalaycı F, Karagöz A, and Tanboğa İH
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- 2024
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5. An Unexpected Discovery in the Left Atrial Appendage-A Thrombus or a Tumor?
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Tükenmez Karakurt S, Karakurt H, Güler A, Kadiroğulları E, Aydın S, and Güler GB
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- Humans, Diagnosis, Differential, Echocardiography, Transesophageal, Atrial Appendage diagnostic imaging, Heart Neoplasms diagnostic imaging, Thrombosis diagnostic imaging
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- 2024
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6. Transcatheter Closure or Surgery for Symptomatic Paravalvular Leaks: The Multicenter KISS Registry.
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Güner A, Kırma C, Ertürk M, Türkmen M, Alıcı G, Karabay CY, Uzun F, Kılıçgedik A, Gündüz S, Güler GB, Kalkan AK, Özkan B, Sarı M, Gürsoy MO, Tekin M, Yıldız M, Can F, Kırali K, Fedakar A, Sarıkaya S, Aydın Ü, Kahraman S, İyigün T, Aksüt M, Karpuzoğlu E, Çiloğlu K, Sungur MA, Tanboğa İH, and Özkan M
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- Male, Humans, Middle Aged, Aged, Retrospective Studies, Stroke Volume, Treatment Outcome, Ventricular Function, Left, Registries, Cardiac Catheterization adverse effects, Heart Valve Prosthesis Implantation adverse effects, Heart Valve Prosthesis
- Abstract
Background: The optimal treatment of symptomatic paravalvular leak (PVL) remains controversial between transcatheter closure (TC) and surgery. This large-scale study aimed to retrospectively evaluate the long-term outcomes of the patients who underwent reoperation or TC of PVLs., Methods and Results: A total of 335 (men, 209 [62.4%]; mean age, 58.15±12.77 years) patients who underwent treatment of PVL at 3 tertiary centers between January 2002 and December 2021 were included. Echocardiographic features, procedure details, and in-hospital or long-term outcomes were assessed. The primary end point was defined as the all-cause death during follow-up. The regression models were adjusted by applying the inverse probability weighted approach to reduce treatment selection bias. The initial management strategy was TC in 171 (51%) patients and surgery in 164 (49%) cases. Three hundred cases (89.6%) had mitral PVL, and 35 (10.4%) had aortic PVL. The mean left ventricular ejection fraction was 52.03±10.79%. Technical (78.9 versus 76.2%; P =0.549) and procedural success (73.7 versus 65.2%; P =0.093) were similar between both groups. In both univariate and multivariable logistic regression analysis, the in-hospital mortality rate in the overall population was significantly higher (15.9 versus 4.7%) in the surgery group compared with the TC group (unadjusted odds ratio, 3.13 [95% CI, 1.75-5.88]; P =0.001; and adjusted odds ratio (inverse probability-weighted), 4.55 [95% CI, 2.27-10.0]; P <0.001). However, the long-term mortality rate in the overall population did not differ between the surgery group and the TC group (unadjusted hazard ratio [HR], 0.86 [95% CI, 0.59-1.25]; P =0.435; and adjusted HR (inverse probability-weighted), 1.11 [95% CI, 0.67-1.81]; P =0.679)., Conclusions: The current data suggest that percutaneous closure of PVL was associated with lower early and comparable long-term mortality rates compared with surgery.
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- 2024
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7. Impact of Bileaflet Mechanical Mitral Valve Orientation on Pannus Overgrowth.
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Duman ZM, Apaydın Z, Can İ, Kaplan MC, Buğra AK, Timur B, Bayram M, Karakurt ST, Güler GB, Kadiroğulları E, and Onan B
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Objective: Pannus overgrowth is a chronic inflammatory process that can cause valve dysfunction and threaten the durability of prosthetic valves. Bileaflet mechanical mitral valve can be implanted in either an anatomical (parallel to the anatomical axis) or nonanatomical (perpendicular or oblique to the anatomical axis) orientation. The effect of the rotational orientation of the bileaflet mechanical mitral valve on excessive pannus enlargement is unknown. The present study compared the effect of bileaflet mechanical mitral valve orientation on pannus overgrowth., Methods: The study included patients who underwent bileaflet mechanical mitral valve replacement for rheumatic mitral valve stenosis. The pannus formation was confirmed by reexamining all transesophageal echocardiography images in the picture archiving and communication systems between May 2017 and April 2021. The primary aim of this study was the development of pannus overgrowth. Patients were divided into 2 groups based on their implantation orientation of the bileaflet mechanical mitral valve., Results: Pannus overgrowth was found in 26 patients (56.5%) in the anatomical orientation group and 71 patients (74.7%) in the nonanatomical orientation group ( P = 0.03). Anatomical orientation reduced the development of pannus overgrowth (odds ratio [OR] = 0.39, P = 0.04), and double left heart valve replacement increased the development of pannus overgrowth (OR = 2.73, P = 0.04)., Conclusions: Pannus overgrowth was less common in bileaflet mechanical mitral valves implanted in the anatomical orientation., Competing Interests: Declaration of Conflicting InterestsThe authors declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
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- 2023
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8. Which One to Treat When Pannus and Thrombus Coexist in a Mechanical Aortic Valve?: An Equivocal Case.
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Topel Ç, Doğan AC, Türen S, Ertürk M, and Güler GB
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The coexistence of pannus and thrombus is not uncommon. Accurate diagnosis of the etiology of prosthetic valve dysfunction (PVD) is of utmost importance in guiding adequate and rational therapy. We present a case of PVD in which computed tomography played a decisive role in guiding treatment. ( Level of Difficulty: Intermediate. )., Competing Interests: The authors have reported that they have no relationships relevant to the contents of this paper to disclose., (© 2021 The Authors.)
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- 2021
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9. Cardiac hemangioma in a difficult anatomical location presented with ventricular tachycardia. A rare case report.
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Topel Ç, Sevinç S, Onan B, Yıldız M, and Güler GB
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- Arrhythmias, Cardiac, Echocardiography, Heart Ventricles diagnostic imaging, Humans, Male, Heart Neoplasms complications, Heart Neoplasms diagnostic imaging, Heart Neoplasms surgery, Hemangioma diagnosis, Hemangioma diagnostic imaging, Tachycardia, Ventricular diagnostic imaging
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Cardiac hemangioma is a benign and rare primary tumor of the heart. Though it has benign histopathological features, its complications can be life-threatening. We report a young adult male without any prior structural heart disease or medical history who presented with ventricular tachyarrhythmia. Echocardiography revealed an echogenic mass located intramurally in the left lateral ventricle and its distinctive characteristics were revealed with further imaging modalities. Though simple complete removal of the mass is the preferred treatment, its firm texture and thinned encircling myocardium prevented the total excision. In this case report, we discussed cardiac hemangioma, its potential complications and treatment options., (© 2020 Wiley Periodicals LLC.)
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- 2021
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10. Left ventricular apical thrombi: Silent but terrifying.
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Demirci G, Güner EG, Çörekcioğlu B, Güner A, Şen O, Kalkan AK, and Güler GB
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- Aortic Valve, Echocardiography, Humans, Heart Ventricles diagnostic imaging, Heart Ventricles surgery, Thrombosis diagnostic imaging, Thrombosis surgery
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We present a case with a large left ventricular (LV) thrombus that presented to the emergency department with dyspnea. Bedside transthoracic echocardiography demonstrated a huge hypermobile thrombus with a maximum of 8.6 × 2 cm in size extending to the aortic valve originating from the aneurysmatic apical wall of the LV. Treatment of the patient included complete thrombus resection with aneurysmectomy., (© 2020 Wiley Periodicals LLC.)
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- 2020
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11. Incremental value of multimodal imaging in the evaluation of complicated prosthetic valve endocarditis.
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Güner A, Ateşli A, Aguş HZ, Güler E, and Güler GB
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- Abscess diagnosis, Aneurysm, False diagnostic imaging, Anti-Bacterial Agents therapeutic use, Computed Tomography Angiography methods, Echocardiography, Transesophageal methods, Endocarditis, Bacterial drug therapy, Endocarditis, Bacterial microbiology, Endocarditis, Bacterial surgery, Fatal Outcome, Fluorodeoxyglucose F18 administration & dosage, Fluorodeoxyglucose F18 metabolism, Humans, Male, Middle Aged, Positron Emission Tomography Computed Tomography methods, Staphylococcus aureus isolation & purification, Endocarditis, Bacterial diagnostic imaging, Heart Valve Prosthesis adverse effects, Multimodal Imaging methods, Prosthesis-Related Infections complications
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- 2020
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12. Where is the right ventricle? Accurate diagnosis with cardiovascular multimodality imaging.
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Güner A, Topel Ç, Cansever AT, Güner EG, Tüfekcioğlu O, Ertürk M, and Güler GB
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- Echocardiography, Humans, Myocardium, Quality of Life, Endomyocardial Fibrosis complications, Endomyocardial Fibrosis diagnostic imaging, Heart Ventricles diagnostic imaging
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Endomyocardial fibrosis (EMF) is a globally unattended disease with significant rates of morbidity and mortality. It has a higher prevalence in tropical and subtropical countries compared to the rest of the world. Endomyocardial fibrosis can affect the atrioventricular valves, along with all four chambers of the heart, but spares the myocardium. Patients currently undergo symptomatic treatment with diuretics and vasodilators to enhance quality of life, although medical therapy alone is associated with poor prognosis. Hence, patients with severe symptoms prefer surgical treatment. Modern multimodality imaging, however, can help these definitions to be made more accurately., (© 2020 Wiley Periodicals, Inc.)
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- 2020
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13. Is the presence of left atrial diverticulum associated with recurrence in patients undergoing catheter ablation for atrial fibrillation?
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Demir GG, Güneş HM, Seker M, Savur Ü, Güler GB, Güler E, Dogan M, Erol C, and Kılıçaslan F
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Introduction: Catheter ablation (CA) for atrial fibrillation (AF) has been a major cornerstone in the management of AF. Despite promising advances in CA techniques, long-term results reveal a high rate of recurrence after the procedure. Left atrial diverticulum (LAD), a common anatomic variant of the left atrium, was previously shown to be associated with increased risk of thrombus formation, cardiac perforation and arrhythmia. In this study we aimed to investigate the relationship between LAD and recurrence in patients undergoing CA for AF., Material and Methods: A total of 100 consecutive patients with a mean age of 53 ±12.1 years (53% male) underwent radiofrequency (RF) (46, 46%) or cryoballoon (54, 54%) catheter ablation for atrial fibrillation preceded by cardiac computed tomography (CT) imaging. Clinical and procedural characteristics of the patients with and without AF recurrence were compared., Results: Twenty-three (23%) patients had AF recurrence and 77 (77%) patients had no recurrence. The clinical parameters such as hypertension, diabetes mellitus, coronary artery disease and stroke did not differ between the groups. Left atrium diameter was significantly different between the two groups (4.1 ±0.5 vs. 3.9 ±0.5, p = 0.042). Presence of LAD was not different between the two groups (7 (31.8) vs. 21 (28.8); p = 0.794). Multivariate logistic regression analysis revealed RF ablation as the most important independent variable for AF recurrence (β = 3.115, p < 0.001, OR = 22.526, 95% CI: 4.287-118.351)., Conclusions: The presence of left atrial diverticulum is not associated with recurrence in patients undergoing RF and cryoballoon CA for atrial fibrillation., Competing Interests: The authors declare no conflict of interest.
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- 2019
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14. Evaluation of Health Care Services Provided in Political Public Meetings in Turkey: A Forgotten Detail in Politics.
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Ceyhan MA, Demir GG, and Güler GB
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- Adult, Anniversaries and Special Events, Female, Humans, Male, Mass Casualty Incidents prevention & control, Turkey epidemiology, Emergency Medical Services statistics & numerical data, Health Services Needs and Demand, Mass Casualty Incidents statistics & numerical data, Politics
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Background: Political parties in Turkey execute political public meetings (PPMs) during their election campaign for members of the parliament (MoP). A great number of people attend these meetings. No guidelines exist regarding preparation and organization of health care services provided during these meetings. Furthermore, there is no study evaluating health care problems encountered in previous PPMs., Objective: Political parties arranged PPMs in 2015 during the election campaign for general election of MoP. The present study aimed to investigate the context of health care services, the distribution of assigned health staff, as well as the number and the symptoms of patients admitted in health care tents in these PPMs., Methods: Two general elections for MoP were done in Turkey on June 7, 2015 and November 1, 2015. Health care services were provided by the City Emergency Medical Services Department (CEMSD) in the cities. Demographic characteristics, symptoms, comorbid conditions, treatment, discharge, and hospital transfer of the patients were obtained from patient medical registration records. Information about the distribution and the number of the assigned staff was received from local CEMSDs. The impact of variables such as the number of attendees, heat index, humidity, and the day of the week on the number of patients and the patient presentation rate (PPR) were analyzed., Results: A total of 97 PPMs were analyzed. The number of total attendees was 5,265,450 people. The number of patients seeking medical help was 1,991. The PPR was 0.5 (0.23-0.91) patients per 1,000 attendees. Mean age of the patients was 40 (SD=19) years old while 1,174 (58.9%) of the patients were female. A total of 1,579 patients were treated in the tents and returned to the PPM following treatment. Two-hundred and three patients were transferred to a hospital by ambulance. Transfer-to-hospital ratio (TTHR) was 0.05 (0.0-0.13) patients per 1,000 attendees. None of the patients suffered sudden cardiac death (SCD) or cardiac arrest. Medical conditions were the main cause for admission. The most common symptoms were dizziness, low blood pressure, fatigue, and hypertension, respectively. The most commonly used medical agents included pain killers and myorelaxants. The number of attendees, heat index, and weekend days were positively correlated with the number of the patients., Conclusion: The majority of medical conditions encountered in PPMs are easily treatable in health care tents settled in the meeting area. The number of attendees, heat index, and weekend days are factors associated with the number of patients. CeyhanMA, DemirGG, GülerGB. Evaluation of health care services provided in political public meetings in Turkey: a forgotten detail in politics. Prehosp Disaster Med. 2018;33(6):607-613.
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- 2018
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15. The relationship between the S-wave in lead 1 and recurrence of RVOT PVC ablation.
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Güneş HM, Demir GG, Karaca O, Yılmaz FK, İbişoğlu E, Gökdeniz T, Omaygenç MO, Güler E, Güler GB, Savur Ü, Çakal B, Barutçu İ, and Kılıçaslan F
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- Bundle-Branch Block diagnostic imaging, Bundle-Branch Block physiopathology, Electrocardiography, Female, Humans, Male, Middle Aged, Recurrence, Treatment Outcome, Ventricular Outflow Obstruction diagnostic imaging, Ventricular Outflow Obstruction physiopathology, Ventricular Premature Complexes diagnostic imaging, Ventricular Premature Complexes physiopathology, Bundle-Branch Block surgery, Catheter Ablation, Ventricular Outflow Obstruction surgery, Ventricular Premature Complexes surgery
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Background: Radiofrequency catheter ablation (CA) is a common non-pharmacological treatment option for ventricular premature contractions (PVCs) originating from right ventricular outflow tract (RVOT). In this study, we aimed to investigate the relationship between recurrence after CA for RVOT-PVC and S-wave in lead 1 that was shown to be associated with RVOT depolarization., Methodology: A total of 104 patients who were referred to our clinic for CA for idiopathic RVOT-PVC between 2012 and 2015years were enrolled. All ECG parameters were measured before and after the ablation procedure., Results: Ablation was successful in 100 patients (96,1%). These patients with successful ablation were followed for a mean duration of 1078days. 13 patients (13%) had recurrence. Univariate logistic regression analysis revealed age (odds ratio: 1.916, p:0,012), presence of post-procedural S1 (odds ratio:1.040 p:0,028), post-procedural S1 area (oddsratio:1.023 p:0,041), ΔS1 area (odds ratio:1.242 p:0,004) as predictors for recurrence. Multivariate logistic regression analysis detected age (odds ratio:1.053 p:0,032) and ΔS1 area (odds ratio:0.701 p:0,009) as predictors for recurrence., Conclusion: Radiofrequency CA for RVOT-PVC can be performed with high procedural success and low complication rates. Age and ΔS1 area might be helpful for prediction of recurrence after CA., (Copyright © 2018 Elsevier Inc. All rights reserved.)
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- 2018
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16. Endobronchial ultrasound-guided transbronchial fine needle aspiration: Determinants of adequacy.
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Ece D, Keser SH, Çağlayan B, Salepçi B, Güler GB, Sensu S, Geçmen G, and Kökten Ş
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Background: This study aims to evaluate the factors influencing the adequacy of endobronchial ultrasound-guided transbronchial fine needle aspiration specimens., Methods: A retrospective analysis of 1,700 endobronchial ultrasound-guided transbronchial fine needle aspiration samples obtained from 822 patients (500 males, 322 females; mean age 56±13 years; range 16 to 83 years) was performed between March 2011 and March 2014 at our center. Variables potentially associated with sampling adequacy, such as all cytological materials and procedure notes (lymph node and/or lesion size, localization, needle pass number, and slide number) were examined., Results: The overall specimen adequacy was 79.8%. The specimen adequacy was associated with needle pass number (p≤0.001). Adequacy rate was 66.9% for one needle pass and 85.8% for three needle passes. According to the sampling regions, adequacy rates showed a difference [69.2%-85.8%; (p≤0.005)]. In the multivariate logistic regression analysis of subcarinal (7) lymph node station, patient age (odds ratio, 0.983; 95% confidence interval, 0.966-1.000; p=0.049) and number of slides (odds ratio, 1.240; 95% confidence interval, 1.062-1.448; p=0.006) were independent determining factors of specimen adequacy. While independent determinants of specimen adequacy for the right paratracheal (4R) region were lymph node size (odds ratio, 1.486; 95% confidence interval, 0.973-2.268; p=0.067) and number of slides (odds ratio, 1.418; 95% confidence interval, 1.146-1.756; p=0.001), they were lymph node size (odds ratio, 1.594; 95% confidence interval, 0.960-2.645; p=0.071) and number of needle passes (odds ratio, 2.277; 95% confidence interval, 1.360-3.811; p=0.002) for the right interlobar (11R) region. Independent determinant of specimen adequacy for the left paratracheal (4L) lymph node station was the number of needle passes (odds ratio, 1.656; 95% confidence interval, 0.955-2.869; p=0.072)., Conclusion: During endobronchial ultrasound-guided transbronchial fine needle aspirations, particularly when rapid on site evaluation cannot be applied, consideration of factors affecting adequacy according to lymph node localizations may increase the chance for obtaining materials with suitable quality for cytologic evaluation., Competing Interests: Conflict of Interest: The authors declared no conflicts of interest with respect to the authorship and/or publication of this article., (Copyright © 2018, Turkish Society of Cardiovascular Surgery.)
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- 2018
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17. The timing and importance of motor skills course in knee arthroscopy training.
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Çetinkaya E, Çift H, Aybar A, Erçin E, Güler GB, and Poyanlı O
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- Adult, Female, Humans, Internship and Residency, Male, Prospective Studies, Simulation Training methods, Time Factors, Turkey, Arthroscopy education, Arthroscopy methods, Arthroscopy psychology, Clinical Competence, Knee Joint surgery, Motor Skills, Orthopedics education, Orthopedics standards
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Objectives: The aim of this prospective study is to evaluate the impact of the simulation training program in learning duration of arthroscopic motor skills. Furthermore, we investigated the difference between junior and experienced residents in the improvement of arthroscopic motor skills duration., Methods: We established 2 study groups according to participants' year of experience in orthopedic residency with junior group residents with three years or less than three years experience as group 1 and experienced group with over 3 years of experience as group 2. We calculated duration change of motor skill test results for each participant before and after the course. The tools used were; auto scoring mirror tracer(ASMT), 0'Conner the tweezer dexterity test(OCTDT), etch-a-sketch with overlay(ESOT), purdue the pegboard test(PPT), two-arm coordination test(TACT) and grooved pegboard test(GPT) which were all produced by Lafayette firm. These instruments were used to practice and measure the basic motor skills., Results: All post-course test durations for participants decreased significantly when compared to pre-course. We calculated percentage change of motor skill test results for each participant before and after the course. All motor skill test percentage changes were similar between two groups. In comparison of participants according to their experiences, results revealed that there was no difference in test results of experienced and junior surgeons. Both groups had provided equal improvement in terms of motor skills., Conlusion: As our results revealed, residents will be able to act with a strong motivation to learn applications through basic arthroscopic information gained in early period of orthopedic training and will make more successful applications of real patients., (Copyright © 2017 Turkish Association of Orthopaedics and Traumatology. Production and hosting by Elsevier B.V. All rights reserved.)
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- 2017
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18. A case of myocardial muscular bridging causing severe hypotension during exercise-electrocardiography test.
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Güler GB, Güneş HM, Güler E, Atasever T, and Esen AM
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- Humans, Male, Middle Aged, Exercise Test adverse effects, Hypotension etiology, Myocardial Bridging diagnosis, Myocardial Bridging etiology, Myocardial Bridging physiopathology
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Outlining the severity of the myocardial bridge (MB) is a critical step for selecting the appropriate option among medical, surgical, or angioplasty-based treatments. Invasive treatments are usually preferred if treatment-resistant symptoms are observed or ischemia is proven by tests such as fractional flow reserve or myocardial perfusion scintigraphy (MPS). In this report, we present a patient who developed severe hypotension during treadmill exercise test, even though there were no perfusion defects during adenosine-induced MPS. This case suggests MPS with adenosine is not a good choice for evaluating ischemia in MB patients, as it may cause false negative results.
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- 2016
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19. Effect of Pulmonary Vein Anatomy and Pulmonary Vein Diameters on Outcome of Cryoballoon Catheter Ablation for Atrial Fibrillation.
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Güler E, Güler GB, Demir GG, Kizilirmak F, Güneş HM, Barutçu I, and Kiliçaslan F
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- Female, Humans, Male, Middle Aged, Organ Size, Prospective Studies, Treatment Outcome, Atrial Fibrillation surgery, Catheter Ablation methods, Cryosurgery, Pulmonary Veins anatomy & histology
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Background: In this study, we aimed to determine pulmonary vein (PV) variation patterns in patients undergoing cryoballoon ablation for atrial fibrillation (AF) and their impacts on procedural success and recurrence and also to identify predictors for recurrence., Methods: We enrolled 54 patients with AF and having symptoms despite medical therapy. Prior to the procedure, PV variation and left atrium (LA) size were evaluated in all patients by computed tomography scan. Ablation procedure was performed with single balloon and predictors for AF recurrence were determined., Results: The study population consisted of 54 patients (male: 50 [27%], mean age: 53 ± 12) with AF. Paroxysmal AF and persistent AF were detected in 55.6% (30) and 44.4% (24) of the patients, respectively. Mean procedural and fluoroscopy times were 73 ± 19 minutes and 16 ± 4 minutes, respectively. The number of the patients with PV variation of right pulmonary vein (RPV) with >2 ostia and accessory PV was 27.8% (15) and 18.5% (10). During the follow-up, 20.4% (11) of patients had AF recurrence. Patients with recurrence had greater transverse LA size (62 ± 6 mm vs 57 ± 5 mm, P: 0014), longitudinal LA size (65 ± 5 mm vs 61 ± 6 mm, P: 0025), LA volume (78 ± 17 mL vs 65 ± 14 mL, P: 0011), fluoroscopy time (20.4 ± 4.6 minutes vs 15.7 ± 3.5 minutes, P: 0001), RPV with >2 ostia (72.7% vs 27.3%, P: 0001), right upper pulmonary vein (RUPV) diameter (21.6 ± 2.8 cm vs 15.8 ± 2.1 cm; P < 0001), and persistent AF (33.3% vs 66.7%, P: 0046). In multivariate analysis, RUPV diameter (β: 1006; P: 0010; odds ratio [OR]: 2736; 95% confidence interval [CI]: [1267-5906]) and fluoroscopy time (β: 0327; P: 0050; OR: 1386; 95% CI: [1000-1921]) were determined as independent predictors for AF recurrence., Conclusions: Transverse and longitudinal LA size, LA volume, fluoroscopy time, presence of persistent AF, RUPV size, and the number of RPV ostia are associated with AF recurrence following cryoballoon-based ablation. RUPV size and fluoroscopy time are predictors for recurrence., (© 2015 Wiley Periodicals, Inc.)
- Published
- 2015
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20. Factor XIII Val34Leu polymorphism in patients with cardiac syndrome X.
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Güler GB, Batgerel U, Güler E, Karaca O, Geçmen C, Güneş HM, Aguş HZ, Esen AM, and Türkmen MM
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- Alleles, Cross-Sectional Studies, Factor XIII metabolism, Female, Gene Frequency, Humans, Microvascular Angina blood, Middle Aged, Polymerase Chain Reaction, Risk Factors, DNA genetics, Factor XIII genetics, Microvascular Angina genetics, Polymorphism, Genetic
- Abstract
Background: The aim of the study was to examine the frequency of factor XIII polymorphism among patients with cardiac syndrome X (CSX)., Methods: This study was designed as a cross-sectional and observational study. Forty-eight female patients with CSX and 36 controls matched by age, gender, diabetes, and hypertension were studied. CSX was defined as typical chest pain during rest or effort, abnormal test result for exercise ECG, and presence of angiographically normal epicardial coronary arteries after ruling out inducible spasm. Factor XIII gene polymorphism was investigated by using CVD Strip Assay (ViennaLab Diagnostic GmbH) commercial kit., Results: The frequency of factor XIII (Val/Leu + Leu/Leu) mutation was significantly higher in patients with CSX (43%) than in controls (19%) (p = 0.02). Frequency of the Leu allele was significantly higher in the patient group (23.5% vs. 11.1%, p = 0.04). Factor XIII (Val/Leu + Leu/Leu) mutation (p = 0.01, OR = 3.42; 95% CI 1.22-9.58) and smoking (p = 0.04, OR = 3.33, 95% CI 1.05-10.58) were identified as independent predictors of the disease in multivariate regression analysis., Conclusions: This study indicates that there is an evidence for association between factor XIII Val34Leu polymorphism and CSX.
- Published
- 2014
- Full Text
- View/download PDF
21. Iatrogenic huge renal arteriovenous fistula.
- Author
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Dündar C, Güler GB, Tigen K, and Kırma C
- Subjects
- Aged, Arteriovenous Fistula diagnostic imaging, Diagnosis, Differential, Female, Humans, Tomography, X-Ray Computed, Arteriovenous Fistula diagnosis, Renal Artery, Renal Veins
- Published
- 2011
- Full Text
- View/download PDF
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