Gastric pouch emptying of solid food in patients with successful and unsuccessful weight loss after Roux-en-Y gastric bypass surgery

Autor: Ignace M. C. Janssen, Laura N. Deden, M. I. Cooiman, Frits J. Berends, Martin Gotthardt, Edo O. Aarts, Baudewijn W. Hendrickx
Rok vydání: 2017
Předmět:
Zdroj: Surgery for Obesity and Related Diseases, 13, 1840-1846
Surgery for Obesity and Related Diseases, 13, 11, pp. 1840-1846
ISSN: 1550-7289
DOI: 10.1016/j.soard.2017.07.031
Popis: Background After Roux-en-Y gastric bypass (RYGB), approximately 10% of patients have insufficient weight loss (excess body mass index loss Objectives To compare pouch emptying of patients with poor weight loss and patients with successful weight loss after RYGB. Setting A research-intensive nonacademic hospital and center of expertise in bariatric surgery in the Netherlands Methods Female patients were included from among patients with the least (poor weight loss group [P-WL]) and the most weight loss (successful weight loss group [S-WL]) in our center 2 years after RYGB. Pouch emptying scintigraphy was performed after ingestion of a radiolabeled solid meal. Emptying curves, intestinal content (IC) at meal completion and after 15, 30, 45, and 60 minutes, half emptying time, and maximal pouch emptying rate were compared. Results Five individuals were included in P-WL and 5 in S-WL, on average 2.5 ± .3 years after RYGB. Total weight loss was 18 ± 4.1% in P-WL and 44 ± 5.7% in S-WL (P In P-WL, a fast initial pouch emptying and exponential emptying curve was observed, compared with a slower initial emptying and more linear curve in S-WL. Faster emptying in P-WL was also shown by a larger ICmeal (42 ± 18% versus 4.0 ± 3.3%,), IC15 (76 ± 15% versus 35 ± 22%), and IC30 (85 ± 12% versus 54 ± 25%), and a greater maximal pouch emptying rate (17 ± 4.7 versus 5.6 ± 3.4%/min) compared with S-WL (P Conclusions Pouch emptying for solid food was faster in patients with the least weight loss compared with patients with the most weight loss after RYGB. If pouch emptying is an important mechanism in weight loss, altering the pouch outlet may improve poor weight loss management.
Databáze: OpenAIRE