Are preoperative very-low-calorie diets (VLCDs) effective in decreasing surgical risk in patients with obesity?

Updated: Jun 09, 2021
  • Author: Osama Hamdy, MD, PhD; Chief Editor: Romesh Khardori, MD, PhD, FACP  more...
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Answer

Preoperative VLCDs have been postulated to decrease surgical risk by enhancing visualization during laparoscopic bariatric surgery. In a multicenter, randomized, controlled trial involving 298 morbidly obese patients who underwent gastric bypass surgery, van Nieuwenhove et al reported a significantly lower rate of intraoperative complications among those who had undergone a 14-day VLCD before the procedure. [135] In addition, the surgeons’ perceptions of the procedure’s difficulty was lower in the VLCD patients.

There were, however, no significant differences in operative time or intraoperative complications between the control and VLCD groups. [135]


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