Introduction: Hepatit B virus (HBV) is one of the main causes of liver related morbidity and mortality in worldwide. This condition is also a significant healthcare problem in Turkey. Entecavir (ETV) and tenofovir (TDF) are potent nucleos(t)ide analogues (NAs) recommended for the treatment of chronic HBV (CHB) infection. As the data on this topic is limited, we aimed to study the association of NAs and nephrotoxicity in our CHB cohort. Method: Between the January 2011 and February 2016, there were 294 patients who had been treated with TDF (n=194) and ETV (n=100). Clinical and laboratory data such as demographics, serological markers for HBV, pathology scores and routine blood tests were recorded from the charts. Glomerular filtration rate (GFR) was calculated by using the Modification of Diet in Renal Disease (MDRD) method. Kidney function tests were assessed at baseline and follow-up visits. Results: There were 294 patients in the total group. The mean age was 32±11 years, 66% (n=194) of the group was male. The mean follow-up period was 66±18 months. Age and sex distributions and baseline assessments including liver function tests, creatinine, GFR, HBV DNA values and pathology scores (HAI and fibrosis) were similar between TDF (n=194) and ETV (n=100) groups. Creatinin and GFR assessed at the last visit were 0.81±0.01 g/dl and 102.94+19.78 ml/min for TDF and 0.81±0.013 g/dl and 104.65±19.05 ml/min for ETV. These values were not significant between the both treatment groups. In terms of nephrotoxicity, none of the patients had significant changes in terms of creatinine and GFR that may require dose adjustment. Conclusion: Herein we showed that the use of both drugs led to a decrease in GFR that was not clinically important in chronic hepatitis B patients with normal baseline renal tests and without co-morbidity. Key words: Entecavir, Tenofovir, GFR, Chronic hepatitis B

Object: Our aim is to evaluate the elevation of pancreatic enzymes in COVID-19 patients and their relationship with severity of COVID-19. Method: In this study, 1378 patients with COVID-19 infection were included. Relation of elevated amylase and lipase levels and co-morbid conditions with the severity of COVID-19 were checked. The effect of hemodynamic parameters and organ failures on pancreatic enzymes and their relations with prognosis were statistically analyzed. Results: There were 678 (%49,2) female patients and 700 (50,8%) male patients. Of all patients, 687 (49,9%) had mild, 691 (50,1%) severe COVID-19 infections. Elevated amylase levels were detected in 23% of patients (n:316). 19% (261) of them had a slight (1-3 times) increase in amylase levels, while 4% (55) had a more than 3 times increase in amylase than normal. Only 6% of patients with elevated amylase leves had the acute pancreatitis according to Atlanta criteria. According to univariate and multivariate analyses, elevated amylase levels was found statistically related with severity of COVID-19 (OR:4,37-p <0,001). And also diabetes mellitus (DM) (OR:1,82-p:0,001), kidney failure (OR:5,18- p< 0,001), liver damage (OR:6,63 p < 0,001), hypotension (OR:6,86-p< 0,001), sepsis (OR:6,20-p:0.008) were found to related to death of COVID-19. Conclusions: Elevated pancreatic enzyme levels in COVID-19 infections is to related to severity of COVID-19 infection and hemodynamic instability. Similar to other organs, the pancreas can be affected by severe COVID-19 infection.

Background/Aims: Gastric polyps are often detected incidentally during endoscopic procedures performed for different reasons and may sometimes be manifested by gastric bleeding, pyloric stenosis, iron deficiency anemia and abdominal pain. In our study, we aimed to investigate the demographic data of the cases who were found to have gastric polyps at the gastroenterology endoscopy unit, histologic type of the polyps, their localization and size, and their relationship with Helicobacter Pylori. Materials and Methods: Between September 2016 - September 2019, gastric polyps were detected in 255 of 9771 cases who underwent upper gastrointestinal system endoscopy at the Gastroenterology Endoscopy Unit of …….. Training and Research Hospital. Demographic data, endoscopy reports and pathology results of these patients were retrospectively reviewed from the hospital registry system. Results: Of 255 cases included in the study, 160 (62.7%) were female and 95 (37.3%) were male, with a mean age of 56.9 (min: 19, max: 95). A total of 336 polyps were detected in 255 cases, with 1.3 polyps per case. 36 (10.7%) of gastric polyps were found to be fundic gland polyps, 32 (9.5%) were found to be foveolar hyperplasia, 137 (40.8%) were found to be hyperplastic polyps, 5 (1.5%) were found to be xanthomas, and 6 (1.8%) were found to be neuroendocrine tumors. Conclusion: According to this study, 90% of gastric polyps detected endoscopically in southeast Turkey are smaller than 5 mm and located most commonly in the corpus; the most common histologic subtype is hyperplastic polyps.