Laparoscopic adjustable gastric banding (LAGB) represents a safe and effective bariatric procedure, particularly for patients over 50. Preoperative risk factors for impaired post-LAGB excess weight loss are not well characterized for this population. This study aimed to identify demographics, characteristics or comorbidities associated with excess weight loss at 6 and 12 months postoperatively (EWL180 and EWL365, respectively) for these patients.
One hundred and seventeen LAGB patients >50 years of age from 2005 to 2014 were retrospectively reviewed for factors potentially associated with EWL180 and EWL365. Rationally selected variables chosen for analysis included age, race, gender, initial body mass index and preoperative weight loss; comorbidities assessed included hypertension, psychiatric disorders and diabetes mellitus (DM). Variables correlated with EWL180 or EWL365 on bivariate linear regression analysis (P ≤ .05) were input into multivariate linear regression analysis to confirm independent association.
Preoperative DM (B = −9.1 % EWL; 95 % CI −13.6, −4.5 %; P < .001) and African-American race (B = −8.8 % EWL; 95 % CI −17.3, −0.3 %; P = .05) were independent risk factors for impaired EWL180. Only DM was a risk factor for impaired EWL365 (B = −9.7 % EWL; 95 % CI −17.7, −1.8 %; P = .02).
LAGB is a successful operation in patients >50 years of age. Preoperative DM is an independent risk factor for impaired EWL in this cohort.
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Dr. Colleen Brophy, M.D., Professor of Surgery, Vanderbilt University. Vanderbilt RedCAP: CTSA Award UL1 TR000445 from NCATS/NIH.
Eric S. Wise, Sarwat Ahmad, Travis R. Ladner, Kyle M. Hocking and Stephen M. Kavic have no conflict of interest to disclose.
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Wise, E.S., Ahmad, S., Ladner, T.R. et al. Impaired weight loss in laparoscopic adjustable gastric banding patients over 50 years of age: diabetes mellitus as an independent risk factor. Surg Endosc 30, 663–669 (2016). https://doi.org/10.1007/s00464-015-4257-z
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