September 1992

The MEE/PEE Ratio as a Predictor of Excess Weight Loss for up to 1 Year After Vertical Banded Gastroplasty

Author Affiliations

From the Department of Surgery, Dartmouth-Hitchcock Medical Center, Hanover, NH (Drs Ott and Colacchio); the Division of Neurosurgery, University of Kentucky Medical Center, Lexington (Ms Ott and Dr Haack); and the Department of Surgery, Lee Memorial Hospital, Fort Myers, Fla (Dr Lewis).

Arch Surg. 1992;127(9):1089-1093. doi:10.1001/archsurg.1992.01420090097014

• Thirteen morbidly obese individuals were studied prospectively for 1 year after vertical banded gastroplasty (VBG) to determine the relationships between energy balance equation parameters and excess weight loss. The measured energy expenditure (MEE), as determined by indirect calorimetry, was not correlated with weight loss. However, when this parameter was expressed as a ratio to the predicted energy expenditure (PEE), the ratio was significantly correlated with the postoperative excess weight loss at 2, 6, and 12 months. The mean daily energy intake after the VBG was 2715 ±865 kJ. The postoperative energy intake was not correlated with the excess weight loss. Diet-induced thermogenesis was studied in eight patients. The mean diet-induced thermogenesis was 10.31%±13.92%. The diet-induced thermogenesis was not correlated with the postoperative excess weight loss. The preliminary findings of this trial suggest that the MEE/PEE ratio is useful in predicting excess weight loss after VBG.

(Arch Surg. 1992;127:1089-1093)