Effects of a very low calorie diet in the preoperative stage of bariatric surgery: a randomized trial.

Autor:	Faria SL; Graduate Program in Human Nutrition, University of Brasilia, Brasilia, Brazil; Gastrocirurgica Clinic, Brasilia, Brazil. Electronic address: silvialeitefaria@brturbo.com.br., Faria OP; Gastrocirurgica Clinic, Brasilia, Brazil., de Almeida Cardeal M; Graduate Program in Human Nutrition, University of Brasilia, Brasilia, Brazil; Gastrocirurgica Clinic, Brasilia, Brazil., Ito MK; Graduate Program in Human Nutrition, University of Brasilia, Brasilia, Brazil.
Jazyk:	angličtina
Zdroj:	Surgery for obesity and related diseases : official journal of the American Society for Bariatric Surgery [Surg Obes Relat Dis] 2015 Jan-Feb; Vol. 11 (1), pp. 230-7. Date of Electronic Publication: 2014 Jul 23.
DOI:	10.1016/j.soard.2014.06.007
Abstrakt:	Background: Preoperative bariatric patients can follow very low calorie diets (VLCD), reducing surgical risks. However, possible advantages of a liquid diet over one of normal consistency are controversial. This study investigated the effect of a liquid VLCD compared with one of normal consistency considering visceral fat (VF) loss and metabolic profile in preoperative clinically severe obese patients. Methods: This was a randomized, open-labeled, controlled clinical trial. Patients were divided into 2 groups: liquid diet and normal diet. Data were collected at baseline and 7 and 14 days after intervention. Information gathered was analyzed for loss of weight and VF, biochemical data, anthropometric data, and energy intake. Results: Fifty-seven patients consumed the liquid diet and 47 consumed the normal consistency diet. The liquid diet group lost significantly more weight (P<.0290) and VF (P<.0410) than the normal diet group. An inverse correlation occurred between VF loss and surgical time among the liquid diet group (r2=-.1302, P=.001). Additionally, there was a positive correlation between the percentage of excess weight loss and ketonuria (P=.0070). No between-group difference occurred regarding calorie intake. Conclusion: Patients that consumed a liquid diet presented a positive effect on reducing VF and greater weight loss than the normal diet group. Both VLCDs presented benefits offering a protective effect during the preoperative stage. (Copyright © 2015 American Society for Bariatric Surgery. Published by Elsevier Inc. All rights reserved.)
Databáze:	MEDLINE
Externí odkaz:	Zobrazit plný text záznamu