VERTICAL GASTRECTOMY VS. EXTENDED VERTICAL GASTRECTOMY: WHAT IS THE IMPACT ON GASTROESOPHAGEAL REFLUX DISEASE IN OBESE RATS?

Autor:	ValadÃo JA; Postgraduate Program in Principles of Surgery, Medical Research Institute, Evangelic Mackenzie Faculty of Paraná, Curitiba, PR, Brazil., Leal PDC; Federal University of Maranhão, São Luis, MA, Brazil., Oliveira EJSG; Federal University of Maranhão, São Luis, MA, Brazil., Torres OJM; Federal University of Maranhão, São Luis, MA, Brazil., Pinto LEV; Presidente Dutra University Hospital, São Luis, MA, Brazil., Marchi DD; Zilberstein Institute, São Paulo, SP, Brazil., Gama-Filho OP; Federal University of Maranhão, São Luis, MA, Brazil., Santo MA; Department of Gastroenterology, Faculty of Medicine, University of São Paulo, São Paulo, SP, Brazil., Nassif PAN; Postgraduate Program in Principles of Surgery, Medical Research Institute, Evangelic Mackenzie Faculty of Paraná, Curitiba, PR, Brazil.
Jazyk:	Portuguese; English
Zdroj:	Arquivos brasileiros de cirurgia digestiva : ABCD = Brazilian archives of digestive surgery [Arq Bras Cir Dig] 2020; Vol. 33 (2), pp. e1513. Date of Electronic Publication: 2020 Aug 24.
DOI:	10.1590/0102-672020190001e1513
Abstrakt:	Background: Extended vertical gastrectomy is a variation of the vertical gastrectomy technique requiring studies to elucidate safety in relation to gastroesophageal reflux. Aim: To analyze comparatively vertical gastrectomy (VG) and extended vertical gastrectomy (EVG) in rats with obesity induced by cafeteria diet in relation to the presence of reflux esophagitis, weight loss and macroscopic changes related to the procedures. Methods: Thirty Wistar rats were randomized into three groups, and after the obesity induction period by means of a 28-day cafeteria diet, underwent a simulated surgery (CG), VG and VGA. The animals were followed up for 28 days in the post-operative period, and after euthanasia, the reflux esophagitis evaluation was histopathologically performed. Weight and macroscopy were the other variables; weight was measured weekly and the macroscopic evaluation was performed during euthanasia. Results: All animals presented some degree of inflammation and the presence of at least one inflammation criterion; however, there was no statistically significant difference in the analysis among the groups. In relation to weight loss, the animals in CG showed a gradual increase during the whole experiment, evolving to super-obesity at the end of the study, while the ones with VG and EVG had weight regain after the first post-operative period; however, a less marked regain compared to CG, both for VG and EVG. Conclusion: There is no difference in relation to reflux esophagitis VG and EVG, as well as macroscopic alterations, and both techniques have the ability to control the evolution of weight during postoperative period in relation to CG.
Databáze:	MEDLINE
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