Consideracions fisiopatològiques i metabòliques de la gastrectomia vertical amb gastroplàstia tubular laparoscòpica amb o sense preservació antral

Identifier:  TDX:2597

Handle: https://hdl.handle.net/20.500.11797/TDX2597

Authors:  Vives Espelta, Margarida

Abstract:
Introduction: Laparoscopic sleeve gastrectomy is one of the most common techniques in bariatric surgery, but there is no consensus on the optimal distance from the pylorus to start the gastric transection. The aim of this study is to determine the differences in gastric emptying, gastric distension, metabolic response and weight loss between two starting distances. Material and Methods: This is a prospective randomised study of 60 patients (30 patients with the section at 3 cm and 30 patients at 8 cm from the pylorus). We calculate at 6 and 12 months from surgery gastric emptying by scintigraphy (T1/2 min), gastric volume by CT scan (cc) and metabolic response by blood sample analysis. Weight loss was analysed at 3, 6 and 12 months from surgery. Results: Gastric emptying increases the speed significantly in both groups but is greater in the 3cm group (p < 0.05). Dividing groups into type 2 diabetic patients and nondiabetic patients, the speed in non-diabetic patients is significantly higher for the 3-cm group. With the PEBMIL, the 3 cm group reaches 67.8% classified as excellent, while 8 cm group reaches 62.8% classified as a good result. EWL situates the best results for 3 cm group. One year after surgery, there are significant improvements in the hyperinsulinaemia in the patients of the 3- cm group with respect to the 8-cm group, but only in diabetic patients. No differences between groups are found regarding changes in GLP-1 or GIP. Conclusions: Gastric emptying is faster in patients with antrum resection. The distance does not influence the gastric emptying of diabetic patients. Other mechanisms may explain metabolic response besides GLP-1 and its association with improvements in diabetes via gastric emptying. Lower percentage of suboptimal results using EWL and higher percentile of %TWL were observed in patients with antrum resection.