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Updated: Aug 8, 2026

A Protocol for Roux-en-Y Gastric Bypass in Rats using Linear Staplers
Published on: August 21, 2021
Staplerless laparoscopic gastric bypass: a new option in bariatric surgery
João Eduardo Marques Tavares de Menezes Ettinger1, Almino C Ramos, Euler Azaro
1Department of Surgery, Escola Bahiana de Medicina, Av. Princesa Leopoldina 21, Graça, Salvador, Bahia, Brazil. dr.ettinger@gmail.com
Abstract:
The staplerless Roux-en-Y gastric bypass (RYGBP) is a new option in bariatric surgery. The first to describe it was Himpens (2004) utilizing the LigaSure Atlas (LSA) in a series of 10 patients. The laparoscopic RYGBP is performed utilizing the LSA for the gastric and jejunal partition; after that, an imbricating running suture is performed to ensure stomach and bowel hermetic closure. All anastomoses are hand-sewn. Technical disadvantages are: learning curve; complications related to suture failure; possible thermal/electricity related injuries; longer operating time. Advantages are: stapler-associated bleeding, leaks, staple-line disruption, and fistulas are avoided; cost reduction. The staplerless RYGBP is complex; the surgeon involved requires expertise and ability. This technique will evolve and will be used by more surgeons. It is a new option for the surgeon preoccupied with costs, which is particularly important in developing countries.
