The MEE/PEE ratio as a predictor of excess weight loss for up to 1 year after vertical banded gastroplasty
M. T. Ott, L. Ott, D. Haack, T. A. Colacchio and J. Lewis
Department of Surgery, Dartmouth-Hitchcock Medical Center, Hanover, NH.
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.
