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Calibration of the Gastric Pouch in Laparoscopic Roux-en-Y Gastric Bypass: Does it Matter? the Influence on Weight Loss


Calibration of the Gastric Pouch in Laparoscopic Roux-en-Y Gastric Bypass: Does it Matter? the Influence on Weight Loss



Obesity Surgery 28(11): 3400-3404



ISSN/ISBN: 0960-8923

PMID: 29915973

DOI: 10.1007/s11695-018-3352-3

To determine the effect of an orogastric tube for calibration of the gastric pouch on percentage excess weight loss (%EWL) and percentage total weight loss (%TWL) after laparoscopic Roux-en-Y gastric bypass (LRYGB). A retrospective case-matched control study in 132 patients. Group A (a 40 French orogastric tube was used to calibrate the gastric pouch) was compared to group B (no orogastric tube was used). All other surgical steps were identical in both groups. Postoperative %EWL and %TWL were recorded at 3, 6, 9, 12, and 24 months postoperatively. Baseline characteristics and comorbidities were similar for both groups; a mean age of 43.6 years, 84% of the patients were female and mean initial BMI was 44 kg/m2. At 24 months, 9% of the patients were lost to follow-up. At 1-year follow-up, %EWL and %TWL were 80% and 33.3% in group A versus 70% and 28.6% in group B with p = 0.013 and p = 0.007 respectively. At 2 years, EWL% and %TWL were 79.5% and 32.8% in group A and 67.18% and 28.1% in group B with a p value of 0.019 and 0.001 respectively. The use of a calibration tube, initial BMI, and age predicted the %TWL best with R squared at 30.7%. The use of a calibration tube for creating the gastric pouch may lead to a higher %EWL and %TWL at 2-year follow-up. The standardization of the technique for LRYGB is desirable to achieve the maximum success rate in the surgical therapy of morbid obesity.

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Accession: 052778299

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