8 results on '"Demirtaş CÖ"'
Search Results
2. Impact of COVID-19 Pandemic on Gastroenterology Fellowship Training in Turkey: A Prospective Nationwide Survey Study.
- Author
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Demirtaş CÖ, Vahabov C, Mustafayev F, Sahin T, and Parlak E
- Subjects
- Adult, Education, Medical, Graduate, Female, Humans, Male, Middle Aged, Prospective Studies, SARS-CoV-2, Surveys and Questionnaires, Turkey epidemiology, COVID-19, Endoscopy statistics & numerical data, Fellowships and Scholarships, Gastroenterology education, Pandemics
- Abstract
Background: The Coronavirus-2019 disease (COVID-19) pandemic has markedly restricted endoscopic and clinical activities in gastroenterology (GI), with a negative impact on trainee education. We aimed to inve stigate how and to what extent has GI trainees in Turkey are affected by the current pandemic in terms of general, psychological, and educational status., Methods: We conducted a web-based survey sent electronically to 103 official GI trainees in Turkey from 37 centers. The 32-item survey included questions to capture demographic (5-questions), endoscopic (7-questions), personal protective equipment (PPE) (3-questions), psychological and general well-being (11-questions), and educational (6-questions) data., Results: Ninety-six (93.2%) trainees completed the survey, of which 56.3% (n = 54) reported a decrease in independently performed endoscopic procedures. Due to pandemic, 91.7% of standard diagnostic endoscopic procedures, 57.2% of standard therapeutic procedures, and 67.7% of advanced endoscopic procedures were decreased. Out of 96 respondents, we detected signs of anxiety in 88.5%, exposure concern in 92.7%, concerns for prolongation of training period in 49%, loss of concentration and interest in 47.9%, and burnout syndrome in 63.5%. Female gender (odds-ratio: 3.856, 95% confidence interval: 1.221-12.174, P = .021) was the only independently associated factor with pandemic-related anxiety., Conclusions: COVID-19 pandemic has led to high amounts of anxiety and non-negligible rates of burnout syndrome among GI trainees, with a significant reduction in endoscopic activities. More effort and novel strategies are required to deliver sufficient competence and general-psychological well-being to GI trainees.
- Published
- 2021
- Full Text
- View/download PDF
3. Hepatocellular Carcinoma in Non-cirrhotic Liver Arises with a More Advanced Tumoral Appearance: A Single-Center Cohort Study.
- Author
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Demirtaş CÖ, Tolu T, Keklikkıran Ç, Özdoğan OC, and Gündüz F
- Subjects
- Humans, Liver Cirrhosis epidemiology, Neoplasm Staging, Retrospective Studies, Carcinoma, Hepatocellular epidemiology, Carcinoma, Hepatocellular pathology, Liver Neoplasms epidemiology, Liver Neoplasms pathology
- Abstract
Background: A small proportion of all hepatocellular carcinomas (HCCs) arise in a non-cirrhotic liver (NCL). However, our knowledge about the HCCs developing in a NCL is scarce. This study was undertaken to investigate the characteristics and survival course of this patient group., Methods: We retrospectively analyzed the database of patients with HCC at a tertiary center during a 10-year period (2009-2019). All demographic, clinical, laboratory, and tumoral features with survival outcomes were compared between the HCC-CL and HCC-NCL groups., Results: Out of 384 HCC cases, 11.2% (n = 43) had no cirrhosis. The dominant etiology in the HCC-NCL group was hepatitis B virus (n = 26, 60.5%), followed by non-alcoholic fatty liver disease (n = 10, 23.2%), and hepatitis C virus (n = 7, 16.3%). The maximum tumor diameter was approximately 2 times larger in the HCC-NCL group (HCC-NCL: 90 mm vs. HCC-CL: 46.5 mm, P < .001). The proportion of patients with vascular (HCC-NCL: 27.9% vs. HCC-CL: 8.6%, P < .001) and extrahepatic invasion (HCC-NCL: 14% vs. HCC-CL: 3%, P = .001) were prominently higher in the HCC-NCL group. Patients with HCC-NCL were less often detected in early-curable stages (BCLC 0-A) than those in the HCC-CL group (HCC-NCL: 16.3% vs. HCC-CL: 34.9%, P = .004). The overall survival was not different between the 2 groups (HCC-NCL: 19.4 ± 9.8 months vs. HCC-CL: 17.5 ± 2.3 months, P = .581)., Conclusion: HCC in NCL is diagnosed at more advanced tumoral stages with larger tumor size and more often with vascular and extrahepatic spread. Despite the preserved liver functions, the overall survival is not prolonged in HCCs without cirrhosis, due to the late recognition.
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- 2021
- Full Text
- View/download PDF
4. Myeloperoxidase and calprotectin; Any role as non-invasive markers for the prediction of ınflammation and fibrosis in non-alcoholic steatohepatitis?
- Author
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Bıçakçı E, Demirtaş CÖ, Çelikel Ç, Haklar G, and Duman DG
- Subjects
- Adult, Biomarkers blood, Case-Control Studies, Female, Humans, Liver pathology, Liver Cirrhosis etiology, Male, Middle Aged, Non-alcoholic Fatty Liver Disease complications, Prospective Studies, Leukocyte L1 Antigen Complex blood, Liver Cirrhosis blood, Non-alcoholic Fatty Liver Disease blood, Peroxidase blood, Severity of Illness Index
- Abstract
Background/aims: Specific serum markers reflecting hepatic inflammation and fibrosis are required to tailor the treatment strategies in non-alcoholic steatohepatitis (NASH). We aimed to investigate the roles of myeloperoxidase (MPO) and calprotectin in predicting the hepatic inflammation status and disease severity in NASH., Materials and Methods: A total of 48 patients with biopsy-proven NASH and 25 healthy volunteers with normal weight were prospectively enrolled. Serum MPO and calprotectin levels were compared between the NASH and control groups. Hepatic MPO and calprotectin expressions were compared in terms of histologic non-alcoholic fatty liver disease activity scores (NAS) (low NAS [≤4] vs. high NAS [>5]) and fibrosis stage (insignificant [F0-1]/significant [F2-4])., Results: Serum MPO and calprotectin levels were not significantly different between the NASH and control groups. In the subgroup analysis, hepatic MPO expression was significantly increased in patients with NASH with significant fibrosis than in those with insignificant fibrosis (F2-4: 7.04±3.61 vs. F0-1: 4.83±2.42, p=0.01). We found no difference between the groups with low and high NAS with regard to serum MPO and calprotectin levels and hepatic MPO and calprotectin expressions., Conclusion: This study demonstrated that hepatic MPO expression can reflect advanced fibrosis in NASH. However, when serum MPO and calprotectin levels were evaluated as potential serum markers, both did not associate with hepatic inflammation status and fibrosis stage in NASH. Therefore, our study results preclude their use as serum markers for hepatic inflammation in NASH.
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- 2020
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5. Validation and reliability of the Turkish version of the inflammatory bowel disease questionnaire for ulcerative colitis and Crohn's disease.
- Author
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Kanı HT, Ergenç İ, Arıkan H, Kömesli Z, Seyrek B, Demirtaş CÖ, Özen Alahdab Y, İmeryüz N, and Atuğ Ö
- Subjects
- Adult, Female, Humans, Male, Middle Aged, Reproducibility of Results, Translations, Turkey, Colitis, Ulcerative psychology, Crohn Disease psychology, Quality of Life, Severity of Illness Index, Surveys and Questionnaires standards
- Abstract
Background/aims: Inflammatory bowel diseases (IBD) impairs patients' quality of life (QoL). Inflammatory bowel disease questionnaire (IBDQ) is created to measure the health-related QoL specific for IBD. We planned to investigate the validation and reliability of the Turkish translation of IBDQ., Materials and Methods: Patients filled self-report questionnaires (Turkish Inflammatory bowel disease questionnaire (TrIBDQ) and Short Form-36 (SF-36)) themselves under a physician's supervision, and they were free to ask questions about the questionnaires. The participants then filled the same questionnaire after at least two weeks. Construct validity, discriminant ability, reliability, and susceptibility to change were analyzed separately for the IBD patients. Intra-class correlation coefficient (ICC) was used to assess test-retest reliability. Cronbach's alpha values were used to assess internal consistency., Results: A hundred patients enrolled in the study, 53 with Crohn's disease (CD), 47 with ulcerative colitis (UC). We found a moderate to high positive correlation between the TrIBDQ domains and the SF-36 dimensions. In UC and CD, TrIBDQ was able to differentiate active disease and remission. We found Cronbach's alpha for TrIBDQ domains ranged from 0.76-0.94 in CD and from 0.79-0.92 in UC. The total Cronbach's alpha for TrIBDQ was 0.96 in CD and 0.95 in UC. Sensitivity-to-change analyses of the bowel, systemic, and emotional scores showed statistically significant differences between their baseline and follow-up values., Conclusion: TrIBDQ is a valid and reliable tool for assessing the quality of life in Turkish speaking IBD patients. Thus it can be used in clinical research and practice.
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- 2020
- Full Text
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6. A large Turkish pedigree with multiple endocrine neoplasia type 1 syndrome carrying a rare mutation: c.1680_1683 del TGAG.
- Author
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Demirtaş CÖ, Ata P, Çetin A, Türkyılmaz A, and Duman DG
- Subjects
- Exons, Genetic Testing, Humans, Male, Middle Aged, Pedigree, Phenotype, Turkey, Frameshift Mutation genetics, Genetic Predisposition to Disease genetics, Multiple Endocrine Neoplasia Type 1 genetics
- Abstract
Background and Aims: Multiple endocrine neoplasia type 1 (MEN1) is an autosomal dominant syndrome characterized by tumors arising from endocrine glands with no specific genotype-phenotype correlation. Herein, we report the largest Turkish kindred with MEN1 inherited a scarce MEN1 mutation gene., Materials and Methods: Sixty-four year-old man, referred to our gastroenterology outpatient clinic for evaluation of pancreatic mass lesion, was diagnosed with MEN1-syndrome after endoscopic ultrasound guided sampling of the mass revealing pancreatic neuroendocrine tumor (pNET), and accompanying primary hyperparathyroidism (PHPT) and pituitary tumor. Genetic analysis by whole gene Sanger sequencing of MEN1 gene identified a frame-shift mutation in exon 10 (c.1680_1683delTGAG). All the relatives of the index case were proposed for clinical and genetic evaluation for MEN1-syndrome., Results: Of the 25 relatives of the index case, 17 were diagnosed MEN1-syndrome. Eighteen members among all relatives consented to genetic analysis and 11 had the same mutation as the index case. All the mutation positive members had MEN1, while none of mutation negative subjects had any sign of MEN1-syndrome. The frequencies of PHPT, pNET and pituitary tumors in this kindred were 94.1% (16/17), 29.4% (5/17) and 29.4% (5/17) respectively., Conclusion: We report rare MEN1 gene mutation which was descibed in a single sporadic patient before. It inherited in at least three generations of a large family, which has proven strong dominant effect on MEN1 phenotype. Further researches may be conducted to clarify potential candidacy of this mutation, as a hotspot for MEN1 patients, especially in Turkish population.
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- 2020
- Full Text
- View/download PDF
7. Growing burden of nonalcoholic fatty liver disease in Turkey: A single-center experience.
- Author
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Yılmaz Y, Kanı HT, Demirtaş CÖ, Kaya E, Sapmaz AF, Qutranji L, Alkayyali T, Batun KD, Batman M, Toy B, and Çiftaslan A
- Subjects
- Adolescent, Adult, Aged, Biopsy, Diabetes Mellitus, Type 2 epidemiology, Female, Humans, Liver pathology, Liver Cirrhosis epidemiology, Liver Cirrhosis etiology, Male, Metabolic Syndrome epidemiology, Middle Aged, Non-alcoholic Fatty Liver Disease etiology, Non-alcoholic Fatty Liver Disease pathology, Obesity epidemiology, Prevalence, Prospective Studies, Retrospective Studies, Risk Factors, Severity of Illness Index, Turkey epidemiology, Young Adult, Diabetes Mellitus, Type 2 complications, Metabolic Syndrome complications, Non-alcoholic Fatty Liver Disease epidemiology, Obesity complications
- Abstract
Background/aims: Nonalcoholic fatty liver disease (NAFLD), which consists of nonalcoholic fatty liver (NAFL) and nonalcoholic steatohepatitis (NASH), is a growing epidemic in Turkey, considering the recent alarming prevalence of 48.3%. Patients with NASH and/or liver fibrosis are more likely to progress to advanced liver disease. In this single-center study, we sought to describe the clinical and histological characteristics of a sample of Turkish patients with biopsy-proven NAFLD, who were enrolled over a 4-year period., Materials and Methods: This is a retrospective analysis of prospectively collected data from a total of 468 patients (224 males, 244 females; median age, 47 [18-71]. The study cohort consisted of patients with biopsy-proven NAFLD who were followed up at our outpatient clinic from 2009 to 2010 and from 2017 to 2018. Histological classification of the biopsies was performed according to the Steatosis, Activity and Fibrosis (SAF) scoring allowing the use of Fatty Liver Inhibition of Progression (FLIP) algorithm and the NAFLD Activity Score (NAS) scoring system., Results: Based on the SAF scoring, most patients (90.4%) had biopsy-proven NASH, whereas the NAFL was much rarer (9.6%). The prevalence of significant fibrosis (≥F2), advanced fibrosis (≥F3), and cirrhosis (F=4) was 35.0%, 17.5%, and 3.8%, respectively. The percentage of lean, overweight, and obese patients with NAFLD was 6.4%, 32.6%, and 61%, respectively. Metabolic syndrome was prevalent in 63% of the patients and Type 2 diabetes mellitus in 33.5%., Conclusion: The growing burden of NAFLD as a public health problem in Turkey is underscored by its marked histological severity in terms of NASH and fibrosis. Well-conducted clinical trials will be essential for slowing down the NASH progression.
- Published
- 2019
- Full Text
- View/download PDF
8. Convenient chronic hepatitis B candidates for antiviral cessation and retreatment after relapse: When and who?
- Author
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Demirtaş CÖ and Özdoğan OC
- Subjects
- Antiviral Agents, Hepatitis B e Antigens, Humans, Incidence, Recurrence, Retreatment, Hepatitis B Surface Antigens, Hepatitis B, Chronic
- Published
- 2018
- Full Text
- View/download PDF
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