Publications by authors named "Mohammed S Hedaya"

Background: The overexpression of the cholesterol transporter: ATP-binding cassette transporter (ABCG8) due to the effect of ABCG8 genetic variant (rs11887534) leads to the precipitation of cholesterol crystals and gallstone disease (GSD).

Objective: To evaluate the chemical composition of gallstones and the role of ABCG8 (rs11887534) in the susceptibility to GSD.

Methods: We enrolled 77 patients with GSD treated with standard laparoscopic or open cholecystectomy and 75 age and sex-matched healthy controls.

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This study compared the postoperative analgesic effect of local anesthetic (LA) injected subcutaneous (SC) alone versus local anesthetic injected both SC and deep in patients undergoing open appendecectomy operations. Sixty patients ASA class I-II undergoing open appendecectomy for presumed acute appendicitis will be randomly assigned into three groups. After routine monitoring, anesthesia induction was performed with propofol, fentanyl and, cis-atracurium; later, maintenance was continued with isoflurane.

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Portal vein arterialization (PVA) is often referred to as a salvage procedure for insufficient arterial or portal inflow. Its main role focuses on two domains, liver transplantation and extensive surgery for malignancies of liver, biliary tract and pancreas. It ha been applied in treatment of fulminant hepatic failure due to intoxications and as a bridging procedure for transplantation or re-transplant.

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Background: Balancing donor safety and graft volume is difficult. We previously reported that intentional modulation of portal venous pressure (PVP) during living-donor liver transplantation (LDLT) is crucial to overcoming problems with small-for-size grafts; however, detailed studies of portal venous flow (PVF) and a reliable parameter are still required.

Patients And Methods: The elimination rate (k) of indocyanine green (ICG) was measured in 49 adult LDLT recipients.

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This prospective study was conducted to investigate the efficacy of single-dose Ceftazidime as a prophylactic antibiotic to prevent surgical site infections in low-risk patients undergoing LC. Two hundred patients included in the study were randomly divided into two groups (100 each): G1: patients received intravenous Ceftazidime within 60 minutes prior to surgery and G2: received intravenous placebo (10 ml isotonic sodium chloride 0.9% solution).

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This study assessed the effect of pancreatico-biliary reflux (PBR) as co-factor in the process of chronic cholecystitis by measurement of the levels of active pancreatic enzyme amylase in gallbladder bile and serum of patients undergoing cholecystectomy. Pancreatic Amylase levels in bile from the gallbladder and serum were measured during surgery in 68 patients with chronic calcular cholecystitis subjected to elective open or laparoscopic cholecystectomy in the National Hepatology and Tropical Medicine Research Institution and Theodore Bilharz Research Institute. Bile amylase was detected in 64 patients (94.

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Background: In liver transplantation, acute cellular rejection (ACR) is still a major complication that can lead to mortality. Bile secretion has been considered as a marker of early graft function.

Methods: The study included 41 adults who received living donor liver transplantation (LDLT) at Kyoto University Hospital between April 2007 and February 2008.

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Background: Liver transplantation currently represents the ultimate therapy for bleeding esophageal varices in patients with liver cirrhosis. It is the only therapy that cures both portal hypertension and the underlying liver disease. The outcome of liver transplantation is thought to be correlated with several factors.

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The aim of this study was to compare the Cavitron ultrasonic surgical aspirator (CUSA) with bipolar cautery (BP) to CUSA with a radiofrequency coagulator [TissueLink (TL)] in terms of efficacy and safety for hepatic transection in living donor liver transplantation. Twenty-four living liver donors (n = 12 for each group) were randomized to undergo hepatic transection using CUSA with BP or CUSA with TL. Blood loss during parenchymal transection and speed of transection were the primary endpoints, whereas the degree of postoperative liver injury and morbidity were secondary endpoints.

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