Polyol pathway in the pathogenesis of diabetic complications and aldose reductase inhibitors.
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Biomedical subjects
Publications and source records attributed to V K Kapoor.
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A case of symptomatic colonic lipoma, mimicking malignant tumour on colonoscopy, barium contrast studies and at laparotomy, is reported. The diagnosis was established on histopathology after left hemicolectomy.
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Periampullary carcinoma in a young female with situs inversus viscerum is reported. Endoscopy was difficult because of the altered anatomy.
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Agenesis of the gallbladder, which is an extremely rare anomaly, may present with biliary symptoms but is virtually impossible to diagnose by such conventional investigations as oral cholecystogram or ultrasonography. We report herein a case of a young man presenting with episodic epigastric pain on whom an ultrasonographic diagnosis of gallstones was made. A gallbladder was not visualized on oral cholecystogram, however, he was subsequently found to have agenesis of the gallbladder, the diagnosis of which was confirmed by intra-operative cholangiography and a postoperative N-2,6-dimethylphenylcarbamoyle methyl iminodiacetic acid scan (HIDA scan). His symptoms responded to antiulcer treatment with upper gastrointestinal endoscopic findings suggestive of oesophagitis and duodenitis.
Twenty four patients underwent oesophagectomy for oesophageal cancer. The oesophagogastric anastomosis was performed in the neck in all patients. Following oesophagectomy and gastric mobilization patients were randomly selected into pyloroplasty and no pyloroplasty groups. Pre and postoperative gastric emptying of these patients evaluated by radioisotope technique were then compared. The results suggest significantly delayed postoperative gastric emptying in both the groups though it was less pronounced in the pyloroplasty group. All patients were then carefully followed until death (period varying between 6 months and 4 years) for ill effects of delayed gastric emptying which were present in some patients of both the groups. It was thus concluded that emptying of thoracic stomach is delayed and pyloroplasty fails to improve it completely. Postoperatively patients behave much the same way with or without pyloroplasty.
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To assess the quality of papers presented at the annual conference of the Indial Society of Gastroenterology, a proforma was completed by selected assessors regarding the time taken to present the paper, the quality of the paper and other aspects of presentation. Forty-six papers were evaluated; fifteen of 38 (39%) papers took more than the prescribed time of 8 minutes; 10% were rated unsatisfactory in quality. The quality and content of slides were rated as unsatisfactory in 17% and 7% respectively. The quality and relevance of the questions asked from the floor were graded as unsatisfactory in 20% and 14% respectively. Of the responses from authors to these questions, 33% were graded as unsatisfactory. In all, 28 (61%) of 46 papers assessed were unsatisfactory on one or more counts. Thus, efforts are needed to improve the quality of papers presented and of their presentation.
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Corrosive strictures of the esophagus are difficult to treat, however, prompt and appropriate management of corrosive burns to the esophagus can prevent the formation of strictures. In a developing country like India, where facilities for early treatment are not easily available, strictures are an inevitable consequence. If the strictures are extensive, dilatational therapy proves ineffective and offers no substantial benefit to the patients. Twenty patients with extensive corrosive strictures of the esophagus were surgically managed; by esophageal bypass in 13 and esophagectomy in 7. Surgical treatment restored normal swallowing in all the patients. The common post-operative complications to occur were: pulmonary complications, anastomotic leak and stricture, gastric outlet obstruction and reflux esophagitis. For extensive corrosive strictures of the esophagus, we advocate early surgical treatment rather than prolonged dilatational therapy.
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By radioisotope technique, we studied the emptying function of the vagotomized intrathoracic stomach after esophagectomy for carcinoma of the esophagus in 24 patients, and compared it with the preoperative emptying function. The patients were randomized into a control group (no pyloroplasty) and a study group (pyloroplasty). Gastric emptying was delayed in both groups, postoperatively; however, the delay was greater in the control group than in the study group. Therefore, vagotomy delays the emptying of the thoracic stomach, and this delay is not completely corrected by pyloroplasty.