Excess Body Mass Index Loss at 3 Months: A Predictive Factor of Long-Term Result after Sleeve Gastrectomy

Abstract EN

Introduction.

Laparoscopic Sleeve Gastrectomy (SG) is considered as successful if the percentage of Excess Body Mass Index Loss (% EBMIL) remains constant over 50% with long-term follow-up.

The aim of this study was to evaluate whether early % EBMIL was predictive of success after SG.

Methods.

This retrospective study included patients who had SG with two years of follow-up.

Patients had follow-up appointments at 3 (M3), 6, 12, and 24 months (M24).

Data as weight and Body Mass Index (BMI) were collected systematically.

We estimated the % EBMIL necessary to establish a correlation between M3 and M24 compared to % EBMIL speeds and calculated a limit value of % EBMIL predictive of success.

Results.

Data at operative time, M3, and M24 were available for 128 patients.

Pearson test showed a correlation between % EBMIL at M3 and that at M24 (r=0.74; p<0.0001).

% EBMIL speed between surgery and M3 (p=0.0011) was significant but not between M3 and M24.

A linear regression analysis proved that % EBMIL over 20.1% at M3 (p<0.0001) predicted a final % EBMIL over 50%.

Conclusions.

% EBMIL at M3 after SG is correlated with % EBMIL in the long term.

% EBMIL speed was significant in the first 3 months.

% EBMIL over 20.1% at M3 leads to the success of SG.