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Öğe Atypical gastrointestinal plasmacytomas presenting with gastrointestinal bleeding in a patient with multiple myeloma(TURKISH SOC GASTROENTEROLOGY, 2012) Gungor, Gokhan; Goktepe, M. Hakan; Kayacetin, Ertugrul; Tuna, Tuncer; Esen, Hasan; Demir, Ali[Abstract not Available]Öğe Blood neutrophil-to-lymphocyte ratio independently predicts survival in patients with liver cirrhosis(LIPPINCOTT WILLIAMS & WILKINS, 2013) Biyik, Murat; Ucar, Ramazan; Solak, Yalcin; Gungor, Gokhan; Polat, Ilker; Gaipov, Abduzhappar; Cakir, Ozlem O.Objectives Neutrophil-to-lymphocyte ratio (NLR) is a novel inflammation index that has been shown to independently predict poor clinical outcomes. We aimed to evaluate the role of NLR in the prediction of long-term mortality in patients with stable liver cirrhosis. Materials and methods This is a retrospective observational cohort study in which 145 stable cirrhotic patients without infection, hepatocellular carcinoma, and ongoing steroid therapy were enrolled between January 2009 and December 2011. The primary end point was survival during follow-up. NLR along with Child-Turcotte-Pugh (CTP), Model for End-Stage Liver Disease (MELD) scores, and Charlson comorbidity index were assessed for the prediction of mortality. Results There were 86 men and 59 women, mean age 58.9 +/- 13.4 years. The etiologies of liver cirrhosis included viral hepatitis (n = 73), cryptogenic (50), alcoholic (12), and other (10). The mean follow-up duration was 27.8 +/- 6.8 months, during which 40 patients died. The mean NLRs were 2.08 +/- 0.99 and 4.39 +/- 3.0 in surviving and nonsurviving patients, respectively (P < 0.001). Kaplan-Meier survival analysis was carried out according to the median NLR above and below 2.72. Patients with NLR of at least 2.72 had a significantly lower survival (log rank, P < 0.001). NLR was found to be an independent predictor of mortality in all Cox Regression models (odds ratio 1.2; 95% confidence interval 1.2-1.3; P < 0.001). Receiver operating characteristic analysis showed that cut-off values of 4.22, 3.07, and 2.96 for NLR predicted 12, 24, and 36-month mortality, respectively (AUC: 0.806, P = 0.0029; 0.841, P < 0.0001 and 0.783, P < 0.0001, respectively). Conclusion NLR is a predictor of mortality independent of CTP and MELD scores in patients with liver cirrhosis. NLR could predict mortality in the subgroup of patients with low MELD scores as well. Eur J Gastroenterol Hepatol 25:435-441 (C) 2013 Wolters Kluwer Health | Lippincott Williams & Wilkins. European Journal of Gastroenterology & Hepatology 2013, 25:435-441Öğe A duodenal mass and acute pancreatitis(TURKISH SOC GASTROENTEROLOGY, 2013) Ozer Cakir, Ozlem; Biyik, Murat; Gungor, Gokhan; Ataseven, Huseyin; Demir, Ali; Tavli, Lema[Abstract not Available]Öğe Evaluation of the Relation Between Hepatic Fibrosis and Basic Laboratory Parameters in Patients With Chronic Hepatitis B Fibrosis and Basic Laboratory Parameters(KOWSAR PUBL, 2014) Demir, Nazlim Aktug; Kolgelier, Servet; Ozcimen, Serap; Gungor, Gokhan; Sumer, Sua; Demir, Lutfi Saltuk; Inkaya, Ahmet CagkanBackground: The hepatitis B virus is an important healthcare problem. According to current clinical practice, a liver biopsy is required for the diagnosis and treatment of chronic liver disease. However, a liver biopsy is an invasive, inconvenient procedure, which requires an expert pathologist opinion. Therefore requirement of biochemical tests, which are considered to indicate hepatic fibrosis and may be repeated easily, increases gradually today. Objectives: This study evaluated the correlation between hepatic fibrosis and routine laboratory values in patients with chronic hepatitis B. Patients and Methods: The files of 456 patients with CHB (chronic hepatitis B) who were referred to the infectious diseases and clinical microbiology clinic between January 2009 and March 2012 were screened retrospectively. Liver biopsy samples were examined according to Ishak scoring. Laboratory parameters and histopathology reports were recorded, and correlations between the fibrosis grade and laboratory parameters were analyzed. Results: There were 320 male and 136 female patients, with a mean age 36.7 +/- 12.1 years. According to liver biopsy results, a low fibrosis score (stage 0-2) was detected in 281 patients (61.6%), and a high fibrosis score ( stage 3-5) was detected in 175 patients (38.4%). Patients with a high fibrosis score had significantly higher ALT (alanine amino transferase), AST (aspartate aminotransferase), and HBV-DNA values and a significantly lower platelet count compared with those with a low fibrosis score (P=0.001, 0.001, 0.025, and 0.001, respectively). A positive correlation was detected between the fibrosis score and age, BMI, HAI, ALT, and AST values, and a negative correlation was detected between the fibrosis score and albumin and platelet counts. In the regression analysis performed to evaluate the factors associated with high-stage fibrosis, fibrosis was determined to be associated with thrombosis, ALT, and gender. The results of the regression analysis demonstrated that the risk of fibrosis was 4.6 fold higher in men. Conclusions: According to the results obtained in our study, advanced age, higher BMI, AST, ALT, and HBV-DNA levels, and low albumin and platelet levels are correlated with advanced fibrosis in patients with CHB.Öğe Neutrophil gelatinase-associated lipocalin in prediction of mortality in patients with hepatorenal syndrome: a prospective observational study(WILEY, 2014) Gungor, Gokhan; Ataseven, Huseyin; Demir, Ali; Solak, Yalcin; Gaipov, Abduzhappar; Biyik, Murat; Ozturk, BahadirBackground & AimsHepatorenal syndrome (HRS) is a severe complication of cirrhosis which is characterized by renal dysfunction and associated with poor survival. Neutrophil gelatinase-associated lipocalin (NGAL) is a troponin-like biomarker for human acute kidney injury. We aimed to investigate levels of plasma and urine NGAL in HRS and predictive ability of these markers for all-cause mortality, in HRS, stable cirrhosis and control subjects. MethodsA total of 64 patients with cirrhosis (8 patients with type 1 HRS, 22 with type 2 HRS, and 34 without HRS) and 23 control subjects were included in the study. Blood and urine samples were measured with Human NGAL sandwich ELISA. Patients were followed up prospectively. ResultsPatients with type 1 and type 2 HRS had significantly higher plasma and urine NGAL levels compared with stable cirrhosis and control subjects. Cox regression analysis showed that plasma NGAL and MELD-Na scores were independent predictors of mortality. ROC-curve analysis showed that the plot of the plasma NGAL, urine NGAL, MELD-Na and Child-Turcot-Pugh score could predict all-cause mortality in cirrhotic patients' area under the curve (AUC 0.819, 0.686, 0.807 and 0.795 respectively). ConclusionsNGAL could predict mortality in patients with HRS independent of other commonly used risk factors.Öğe SERUM AND URINE NGAL LEVELS IN PATIENTS WITH CIRRHOSIS AND HEPATO-RENAL SYNDROME(OXFORD UNIV PRESS, 2012) Gungor, Gokhan; Ataseven, Huseyin; Demir, Ali; Solak, Yalcin; Biyik, Murat; Ozturk, Bahadir; Polat, Ilker[Abstract not Available]
