Obesity Surgery

, Volume 29, Issue 6, pp 1976–1981 | Cite as

Laparoscopic Gastroileal Bypass with Single Anastomosis: Analysis of the First 1512 Patients

  • Joaquín Resa BienzobasEmail author
  • Javier Lagos Lizan
  • Ana Isabel Pérez Zapata
  • Mónica Valero Sabater
  • Juan Ferrando Vela
  • Mariano Sanjuan Casamayor
New Concept



Biliopancreatic diversion is perceived as the most effective operation for long-term treatment of massive obesity. The purpose of this study is to demonstrate that gastroileal bypass with single anastomosis is a safe and feasible procedure with similar results to the classic derivation, but reducing surgical time without decreasing the efficacy.


Descriptive, observational, prospective study of patients undergoing gastroileal bypass with single anastomosis between April 2010 and December 2015. The postoperative follow-up was 24 months.


One thousand five hundred twelve patients underwent gastroileal bypass. The mean time of the procedure was 32 min; the average stay was 2.2 days. 30.1% of patients lost more than 100% of their excess weight, and 72.35% of patients lost more than 75% of their excess weight. 95.17% of patients dropped to a BMI < 35; 75.99% to a BMI < 30 and 30.15% to a BMI < 25.


Gastroileal bypass with single anastomosis is a safe and fast procedure providing similar results to biliopancreatic diversion with respect to weight loss.




Compliance with Ethical Standards

Ethical Approval

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

Conflict of Interest

The authors declare that they have no conflict of interest.

Informed consent was obtained from all individual participants included in the



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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Unidad de Cirugía Laparoscópica de la Obesidad y el Metabolismo (UCLOM), Clínica MontpellierZaragozaSpain
  2. 2.Unidad de Cirugía Laparoscópica de la Obesidad y el Metabolismo (UCLOM), Clínica MontpellierZaragozaSpain

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