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Changes in body composition, metabolic profile and nutritional status 24 months after gastric banding.
BACKGROUND: Laparoscopic adjustable gastric banding (LAGB) causes significant weight loss in morbidly obese adults. However, its consequences on nutritional status still remain unclear. This study aimed to investigate the effects of LAGB on body composition, metabolic profile and nutritional status in obese, premenopausal women. METHODS: 36 obese, premenopausal women (age 24-52 years; mean BMI 43.8 kg/m2) who underwent LAGB were included. Body composition was measured using dual-X-ray absorptiometry at baseline, 6, 12 and 24 months after surgery. Blood pressure, total cholesterol, HDL-cholesterol, triglycerides, glucose, uric acid, total proteins, iron, ferritin, vitamin B12, folic acid, hemoglobin and mean corpuscular volume were measured at baseline, 6, 12, 18 and 24 months after surgery. RESULTS: All patients lost weight over 24 months (range 16.0-71.9 kg): there was a significant loss of fat mass (-51.4%; P<0.0001) as well as of fat-free mass (-13.1%; P<0.0001). There was a significant improvement in blood pressure, glucose, total cholesterol, HDL-cholesterol, triglycerides and urates during the first year; during the second year, a further significant decline was noted only in glucose and urates. According to ATP III criteria, 21 of our patients (58%) had a metabolic syndrome before surgery, but only 9 of them (25%) after 12 months and 1 of them (3%) after 24 months. No nutritional deficiency was noted, except for a significant decrease in serum folate (44.1%; P<0.0001 between baseline and month 24). CONCLUSION: LAGB allows significant improvements in metabolic profile, especially during the first postoperative year, without causing major nutritional deficiencies, except for folates.
Adult, Anthropometry, Blood Glucose/analysis, Body Composition, Female, Folic Acid/blood, Gastroplasty, Humans, Laparoscopy, Middle Aged, Nutritional Status, Obesity, Morbid/physiopathology, Obesity, Morbid/surgery, Postoperative Period, Uric Acid/blood, Vitamins/therapeutic use
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