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R Picaud

Publications and source records attributed to R Picaud.

41 records · Page 3Linked to original sources
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[Vagotomy and drainage adapted for ulcerous stenosis].

The authors have retrospectively studied 56 patients with duodenal ulcer stenosis treated by vagotomy and gastric drainage. They found that there are several types of stenosis needing different drainage and vagotomy procedures. So, they propose an operative policy based on the result of a intra-operative exploration adapting the gastric drainage to the type of stenosis and vagotomy to the selected drainage. If the ideal is to preserve pylorus, then to perform a H.S.V. with dilatation or duodenoplasty, nevertheless, according to the authors, there are still indications for T.V. and drainage.

Adult↗
PubMedDate not supplied

[Pancreas transplantation in dogs, effect on the endocrine pancreas of pancreatic duct obliteration and the mode of pancreas preservation. Histological study by surface analysis in dogs].

The effects of organ preservation and of canal obliteration on the endocrine pancreas were investigated in three groups of dogs. A control group of 6 animals were used for the histological examination of the normal pancreas. Two randomized groups (A and B) of 7 dogs the caudal pancreas was autotransplanted; a fibrin glue was injected into the pancreas canals 28 days before organ removal. In the group A, each graft was rinsed in a Euro-Collins solution and immediately transplanted. In group B, each graft was rinsed and held in a preservation solution for 24 hours before transplantation. On histological slices the ratio between of the total surface area of Langerhans islets to the mean surface area of each islet was greater in the control group than in group A (p = 0.011 and 0.023); the ratio was not significantly different between the control group and the group B (p = 0.334 and 0.099). The histological surface area study suggested that the mode of organ preservation affects the endocrine pancreas and that blocking the canals has little effect.

Animals↗
PubMedDate not supplied

The value of histological study by surface analysis of preserved and injected pancreatic grafts: a prospective controlled study in dogs.

To evaluate the effects of pancreas preservation and pancreatic duct obliteration on the endocrine pancreas, three groups of dogs were used: a control group (six) in which histologic analysis of normal pancreas was performed and two randomized groups (seven) from which the caudal pancreas was auto-transplanted, injected with fibrin glue and removed on the 28th day. In Group A, each graft was flushed out with Euro-Collins' solution and immediately transplanted. In Group B, each graft was preserved 24 hours in a preservation solution and transplanted. Islet surface ratios on the sections and mean islet surfaces were greater in the control group than in Group A (p = 0.011 and 0.023) and no different between control group and Group B (p = 0.334 and 0.099). This surface analysis study suggests that the mode of management of grafts in itself explains the alteration of endocrine pancreas and that obliteration of the pancreatic ducts has little influence on this alteration.

Animals↗