Outcomes of Two-Step Revisional Bariatric Surgery: Reasons for the Gastric Banding Explantation Matter
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The purpose of this study is to determine whether the reason for gastric band explantation would influence percentage excess weight loss (%EWL) following revisional Roux-en-Y gastric bypass (RYGB) or sleeve gastrectomy (SG).
Materials & Methods
This is a retrospective cohort study, whose data are maintained in a prospective surgical database. The study period was from January 2012 to March 2017. Revisional surgeries were performed in a two-step manner, namely, first surgery LAGB explantation and second surgery (RYGB or SG). Two-way between-groups analysis of variance was used to examine effects of reason for band explantation (failed versus complication) and type of revisional surgery (RYGB versus SG) on %EWL at 10 months, 1 and 2 years.
Cohort included 171 patients—146 women (85.4%) and 25 men, median age 51 years (range 22–76). Band-related complications accounted for 55% of explantations. Overall, 95 patients (56%) underwent a revisional RYGB, and 76 patients underwent a revisional SG. There was no difference in age or gender in terms of reason for band explantation or choice of revisional surgery. There was no difference in morbidity between the two groups (SG 2.6% versus RYGB 4.2%; p = .464). Patients undergoing revisional RYGB for failed weight loss had a significantly lower %EWL at 2 years compared to patients undergoing an SG for failed weight loss (p = .014) or an RYGB for band-related complications (p = .021).
Patients undergoing revisional RYGB following band explantation for failed weight loss have a significantly lower %EWL at 2 years compared to patients undergoing an SG for failed weight loss or an RYGB for band-related complications.
KeywordsAdjustable gastric banding Band erosion Conversion Revisional surgery Slippage Weight regain
Compliance with Ethical Standards
Conflict of Interest
Savio Barreto, Jacob Chisholm, Ann Schloithe, Jane Collins and Lilian Kow have no conflict of interest to declare. Signed statements to this effect have been uploaded along with the manuscript
Statement of Informed Consent
Informed consent was obtained from all individual participants included in the study.
Human and Animal Rights Statement
All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. For this type of study, formal consent is not required.
SGB is currently the OSSANZ fellow supported by an educational grant from Ethicon.
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