Qais Qutub Contractor

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We conducted a prospective study to determine the most reliable indicator of common bile duct stones before laparoscopic cholecystectomy. One hundred thirty-seven patients were referred for endoscopic retrograde cholangiography before laparoscopic cholecystectomy for suspected choledocholithiasis due to one or more of the following abnormalities: (a)(More)
We report a middle-aged woman who presented with postpartum acute severe central abdominal pain. Portal vein, thrombosis was diagnosed by ultrasonography and confirmed by splenoportogram. She received thrombolytic therapy with symptomatic improvement and gradual disappearance of the thrombus on ultrasound. Early thrombolytic therapy seems to be effective in(More)
The authors studied the relationship of endoscopic esophagitis and gastroesophageal flap valve (GEFV) in patients with symptomatic gastroesophageal reflux (GER). On endoscopy, the GEFV was graded as I to IV in 138 patients with acid regurgitation and heartburn relieved by antacids, and in 54 control subjects without symptoms suggestive of GER. Grade of GEFV(More)
Although tobacco chewing is strongly associated with a high risk of oral and upper alimentary tract cancers, the nature of mutagenic exposure among users has not been clearly defined. In this study, tobacco-specific and mutagenic exposure of chewers of tobacco with lime was evaluated by analysis of gastric fluid (GF). The pH, nitrite and cotinine levels of(More)
Solitary rectal ulcer syndrome is a perplexing condition with a complex multifactorial pathophysiology. Inappropriate contraction of the puborectalis muscle and rectal mucosal prolapse have been commonly implicated, although self-induced trauma has been suspected in some cases. Eight patients who presented with rectal bleeding with excessive mucus were(More)
Esophageal tuberculosis is rare, constituting about 0.3% of gastrointestinal tuberculosis. It presents commonly with dysphagia, cough, chest pain in addition to fever and weight loss. Complications may include hemorrhage from the lesion, development of arterioesophageal fistula, esophagocutaneous fistula or tracheoesophageal fistula. There are very few(More)
Intestinal involvement in Schistosoma mansoni infection is usually confined to the ileum and colon. Duodenal infestation was diagnosed in a patient with recurrent schistosomiasis despite treatment who presented with a postoperative small bowel fistula. Duodenal schistosomiasis can be suspected on endoscopy, but must always be confirmed by biopsy.
Clinical evaluation, upper gastrointestinal endoscopy and electron microscopy of mucosal biopsies from antrum, body and fundus of stomach were performed in three control subjects and 17 habitual tobacco chewers. Electron microscopic abnormalities such as discontinuous, fragmented basement membrane with reduction in hemidesmosomes, and widened intercellular(More)
INTRODUCTION Helicobacter pylori (H. pylori) infection causes chronic gastritis and is a major risk factor for duodenal and gastric ulceration, gastric adenocarcinoma, and primary gastric lymphoma. Increased gastric bacterial density may lead to increased levels of inflammation and epithelial injury. AIMS AND OBJECTIVES 1) To study the effect of H. pylori(More)
OBJECTIVE To assess whether corpus gastritis due to Helicobacter pylori protects against erosive esophagitis in an area with high prevalence of H. pylori infection. METHODS Biopsies obtained from gastric corpus and antrum in 151 patients with symptoms of gastroesophageal reflux disease were studied for presence of H. pylori and endoscopic evidence of(More)