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Biomedical subjects

V Andrei

Publications and source records attributed to V Andrei.

17 recordsLinked to original sources

Laparoscopic biliopancreatic diversion with a duodenal switch for morbid obesity: a feasibility study in pigs.

BACKGROUND AND PURPOSE: Biliopancreatic diversion with a duodenal switch is an emerging open procedure that appears as effective as other bariatric operations. Our goal was to determine the safety and feasibility of performing this procedure using a laparoscopic approach in a porcine model. MATERIALS AND METHODS: Six 50-kg pigs underwent surgery. Intake was restricted with a sleeve gastrectomy, and malabsorption was obtained by creating a Roux-en-Y. The Roux limb served as a 150-cm alimentary channel following anastomosis to a transected proximal duodenum, while the other limb, or biliopancreatic channel, transported digestive juices. Where the two limbs joined, a 100-cm common channel was formed. RESULTS: The operation was completed in a mean time of 4.5 hours. Two of the six pigs had an intraoperative duodenoenterostomy anastomotic leak detected on methylene blue testing. This leakage was thought to be related to pig anatomy and is not expected to be a problem in humans. At necropsy, all anastomoses were patent, and there were no enteroenterostomy leaks or mesenteric torsions. CONCLUSION: On the basis of the porcine model, laparoscopic biliopancreatic diversion with a duodenal switch is anticipated to be feasible and safe in humans. Substantial weight loss combined with the benefits of laparoscopic surgery can be expected.

Anastomosis, Roux-en-Y↗

[Esophageal diverticula. General considerations and case presentation].

Starting with two clinical cases with superior oesophageal diverticuli, the authors review the older and more recent data in the literature concerning the etiology, pathogeny, the experimental study as well as the clinical one of the oesophageal diverticulosis. In the end there are presented some conclusions regarding this affection and its treatment.

Adult↗

[Internal biliary fistula of lithiasic origin].

The authors present 17 cases of patients with internal biliary fistulae of lithiasic origin. Nine of these were of the cholecystoduodenal type, 2 of the cholecysto-gastric type, 2 had developed between the cholecyst and the colon, and 4 were of the bilio-biliary type, between the cholecyst and the choledochus. These cases represented 1.1% of the 1,500 interventions carried out on the extra-hepatic biliary pathways over a period of 10 years, between 1971 and 1980, and 13% of the total number of interventions performed for biliary lithiasis. The advanced age of the patients, the background disease and the complications that accompanied it, as well as the associated deficiencies have given rise to diagnostic and therapeutic difficulties. A correct diagnosis before surgery was made in only two of the patients. The postoperative evolution was good in 13 of the cases (representing 76% of the total), and this confirmed the correct surgical attitude which aimed at restoration of the physiological conditions and a normal digestive and biliary transit. In cases with biliary ileus the first therapeutic measure was to secure intestinal transit.

Adult↗