Introduction:
Laparoscopic sleeve gastrectomy (LSG) is currently the most commonly performed bariatric procedure. It has been shown to have good outcomes with relatively low complication rates. There are few studies that look at predicting factors for weight loss outcome after LSG. We propose that weight loss while on very low calorie diet (VLDL) immediately before the operation correlate with one year weight loss outcome.
Aims:
We aim to study variables (including weight loss immediately pre-operation) that can predict weight loss at 12 months post LSG.
Methods:
All primary LSG cases performed between January 2014 and June 2016 with 12 months follow up were included. The outcome measured was weight loss, expressed in the percentage excess weight loss (%EWL) for the preoperative period (VLDL period), first post operative follow up and 12 months follow up. Data was collected retrospectively.
Results:
A total of 179 patients were included in this study. The average %EWL at 12 months follow up was 80% (±27). Weight loss while on VLDL diet did not correlate with weight loss outcome at one year (r= -0.03), however weight loss at first follow up visit (median 32 days) had a moderate positive correlation (r= 0.47).
Conclusion:
Weight loss while on VLDL diet immediately pre-operation is not a good predictor for post operative weight loss at one year. It was observed that %EWL at first follow up visit has a better correlation.