Variation in Lipid Levels in Morbidly Obese Patients Operated with the LAP-BAND® Adjustable Gastric Banding System: Effects of Different Levels of Weight Loss
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- Busetto, L., Pisent, C., Rinaldi, D. et al. OBES SURG (2000) 10: 569. doi:10.1381/096089200321594192
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Background: A moderate weight loss is known to improve the lipid levels in simple obesity.The extent of weight loss needed to achieve a clinically meaningful effect on lipid abnormalities in morbid obesity is little understood.We analyzed the effects of different levels of body weight loss on the lipid levels of morbidly obese patients operated with the LAPBAND® System. Methods: 225 morbidly obese patients (172 F and 53 M) in which a complete lipid profile has been collected both before and 12-18 months after surgery were studied. The changes of the lipid profile were analyzed according to different levels of percent weight loss (%WL: <10%, 10-20%, 20-30%, >30%). Results: Mean weight loss was 30.7±15.2 kg, corresponding to a 23.1±9.7% reduction of body weight. A large variability in the weight loss was observed. A significant difference in the change of the lipid parameters between the group with <10%WL and the group with 10-20%WL was observed for total-cholesterol (+10.0±17.2% vs-0.7±14.7%; p<0.05), for the LDL (+18.7±26.3% vs +3.1±22.9%; p<0.05), and for the triglycerides (+7.7±26.3% vs -21.9±25.4%; p<0.05). No further significant differences were found between the two groups with greater weight loss (20-30%WL and >30%WL) and the group with 10-20%WL, the only exception being the percent change in triglycerides levels, i.e. higher in the group with %WL >30 (-33.6±31.5% vs -21.9±25.4%; p<0.05). Conclusion: A moderate weight loss of 10-20% of initial body weight produced the maximal effects on the lipid levels in morbid obesity.