Conclusions RYGB surgery reverses the dyslipidaemia of obesity .
These findings support the use of RYGB in the management of high cardiovascular risk lipid profiles in morbid obesity
Background Obesity-related dyslipidaemia comprises hypercholesterolaemia , hypertriglyceridaemia , low HDL-cholesterol and normal to raised LDL-cholesterol levels .
40 % of morbidly obese surgical patients have dyslipidaemia .
Roux-en-Y gastric bypass ( RYGB ) surgery has many beneficial metabolic effects , but the full impact on plasma lipids has not been clearly defined .
Physical Activity Predicts Weight Loss Following Gastric Bypass Surgery: Findings from a Support Group Survey
Background Patient adherence to recommended eating and physical activity behaviors is considered important to weight loss outcomes following gastric bypass surgery , but there has been little systematic research in this area to investigate behavioral predictors of weight loss . Method We developed a measure of postsurgical behaviors , the bariatric surgery self-management question naire ( BSSQ ) . A survey was conducted of 200 patients attending postsurgical support groups ( mean time since surgery 14 months , mean age 40 years , 85 % female , presurgical weight 150 kg ) . Patients completed the BSSQ  and measures of treatment regimen distress , perceived benefits of weight loss , and weight-related physical symptoms . Results Mean BSSQ adherence was in the 70 % range , with subscale scores varying considerably . Distress levels associated with the new lifestyle were consistently low ( ≈20 % ) and perceived benefits of weight loss were high early on and maintained consistently ( 70–90 % ) . A final predictive model showed premorbid weight , time since surgery , and BSSQ physical activity subscale were significant predictors of weight loss , accounting for 73 % of variance .  Conclusions Physical activity adherence was the sole significant behavioral predictor of weight loss , although maladaptive dietary habits and patient selection issues were identified for future research . It will be important to replicate the current study in prospect i ve , longitudinal studies with representative patient cohorts . A challenge for research ers will be to develop novel , intensive recruiting and retention strategies to allow closer examination of these issues
Conclusions RYGB surgery reverses the dyslipidaemia of obesity .
These findings support the use of RYGB in the management of high cardiovascular risk lipid profiles in morbid obesity
Background Obesity-related dyslipidaemia comprises hypercholesterolaemia , hypertriglyceridaemia , low HDL-cholesterol and normal to raised LDL-cholesterol levels .
40 % of morbidly obese surgical patients have dyslipidaemia .
Roux-en-Y gastric bypass ( RYGB ) surgery has many beneficial metabolic effects , but the full impact on plasma lipids has not been clearly defined .