Size matters: gastric pouch size correlates with weight loss after laparoscopic Roux-en-Y gastric bypass

Abstract

The analysis demonstrates that initial gastric pouch size is not the only significant component for successful weight loss after LRYGB. Male gender and increased preoperative BMI were identified as factors predicting pouch size. Efforts to standardize small pouch size for all patients seems important to the success of surgical therapy for morbid obesity.

Three-dimensional stomach analysis with computed tomography after laparoscopic sleeve gastrectomy: sleeve dilation and thoracic migration

“…Such parameters would be helpful to correctly assign patients to secondary treatment options. In this context, the measurement of gastric pouch volume after gastric banding and gastric bypass has been reported with fluoroscopy and abdominal MSCT [8,22,23]. Because of its mostly symmetrical shape, the volume of a gastric pouch can easily be estimated on projection images.…”

Prospective single-site case series utilizing an endolumenal tissue anchoring system for revision of post-RYGB stomal and pouch dilatation

“…Campos and others have validated that principle with data revealing that pouch size is independently correlated with weight loss after primary RYGB [5,6]. Most patients who have regained weight post RYGB have evidence of a dilated stoma and/or gastric pouch [7].…”

Intestinal Perforation Caused by Insertion of a Nasogastric Tube Late After Gastric Bypass

“…If excess tube length is inserted, the tube can coil within the normal stomach with little risk of causing signifi cant damage. In contrast, the volume of the gastric pouch following RYGB is only about 30 mL, and its height is only about 4 cm (7,8). Th ere is no room for tube coiling, and it is unlikely that all of the holes in the distal 8 cm could be within the gastric pouch at the same time.…”