The impact of circular stapler diameter on the incidence of gastrojejunostomy stenosis and weight loss following laparoscopic Roux-en-Y gastric bypass

Gould, Jon Charles; Garren, Michael; Boll, Valerie; Starling, James
July 2006
Surgical Endoscopy;Jul2006, Vol. 20 Issue 7, p1017
Academic Journal
journal article
Background: Gastrojejunostomy stenosis after laparoscopic Roux-en-Y gastric bypass is a common occurrence. The incidence varies widely among reported series. We evaluated the impact of circular stapler size on the rate of stenosis and weight loss.Methods: Our initial technique utilized a 21-mm circular stapler to construct the gastrojejunostomy. We switched to a 25-mm stapler after a large preliminary experience. Stenosis was confirmed by endoscopy in patients complaining of the inability to eat or excessive vomiting, and was defined as a gastrojejunostomy diameter less than that of a therapeutic endoscope (11-mm).Results: Stenosis occurred in 23 of 145 patients (15.9%) with a 21-mm gastrojejunostomy. Five of 81 patients with a 25-mm circular stapled anastomosis have developed a stenosis (6.2%, p = 0.03). Weight loss was similar for each sized stapler at 6 and 12 months.Conclusions: The use of a 25-mm circular stapler in laparoscopic gastric bypass is preferable to a 21-mm stapler. The larger stapler is associated with a significantly decreased incidence of gastrojejunostomy stenosis without compromising early weight loss.


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