We performed a retrospective chart review of patients undergoing EGP using the StomaphyX device from April 2008 to May 2010. The patient demographics and clinical information were assessed. Effective weight loss and the proportion of weight lost after EGP relative to the weight regained after achieving the lowest weight following RYGB was calculated.
A total of 27 patients underwent EGP using the StomaphyX device; of these, most were women (n = 25, 93 % ) and black (n = 14, 52 % ), followed by white (n = 11, 42 % ), and Hispanic (n = 1, 4 % ). The median interval between RYGB and EGP was 6 years, with an interquartile range of 5-8 years. After the EGP procedure, the median effective weight loss was 37 % (interquartile range 24-61 % ). Of the 27 patients, 18 had ¡Ý6 months of follow-up after EGP. Eleven patients had achieved their lowest weight at 1-3 months, 7 at 6 months, and 3 at 12 months. Of the 18 patients, 13 (72 % ) experienced an increase in weight after achieving their lowest weight after EGP.
The use of the StomaphyX device achieved the maximum effective weight loss during the 1-6-month period after EGP.