Post-implant Analysis of Epidemiologic and Eating Behavior Data Related to Weight Loss Effectiveness in Obese Patients Treated with Gastric Electrical Stimulation

作者：Alarcon del Agua I; Socas Macias M; Busetto L; Torres Garcia A; Barranco Moreno A; Garcia de Luna P P; Morales Conde S

来源：Obesity Surgery, 2017, 27(6): 1573-1580.

DOI：10.1007/s11695-016-2495-3

• Obesity
• Morbid obesity
• Gastric stimulation
• Eating behavior
• Weight loss

To determine possible preoperative predictors for obtaining clinically meaningful weight loss with gastric electrical stimulation (GES) using the "Three-Factor Eating Questionnaire" (TFEQ) as well as epidemiological data.
Ninety-seven obese participants in a prospective multicenter randomized study conducted in nine European centers were implanted laparoscopically with the abilitiA (R) closed-loop GES system (CLGES). Five clinical variables and three preoperative TFEQ factor scores (F1-cognitive-restraint, F2-disinhibition, and F3-hunger) were analyzed in order to determine predictors of weight loss success defined as excess weight loss (EWL) > 30% and failure defined as EWL < 20% at 12 months post-surgery.
The mean 12-month %EWL with CLGES was 35.1 +/- 19.7%, with a success rate of 52% and a failure rate of 19%. Significant predictors of success were body mass index (BMI) < 40 kg/m(2) and age >= 50 years, increasing probability of success by 22 and 29%, respectively. A low F1-cognitive-restraint score was a significant predictor of failure (p = 0.004). The best predictive model for success included F1-cognitive-restraint, F2-disinhibition, BMI < 40, and age >= 50 (p = 0.002).
This retrospective analysis has shown that age, preoperative BMI, and F1-cognitive-restraint and F2-disinhibition scores from a preoperatively administered TFEQ are predictive of weight loss outcomes with CLGES and may be used for patient selection.
ClinicalTrials.gov Identifier: NCT01448785.

• 出版日期2017-6