Keywords
Management of obesity
Obstructive sleep apnea
Obesity hypoventilation syndrome
Metabolic syndrome
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Abstract
Objective: To evaluate apnea/hypopnea indices in individuals undergoing two bariatric surgery techniques: Sleeve Gastrectomy and Roux-en-Y Gastric Bypass. Methods: Prospective cohort including obese patients with Sleep Apnea Syndrome undergoing bariatric surgery, for pre- and postoperative evaluation through polysomnography. Body mass and apnea/hypopnea indexes were measured. Results: 30 participants were selected (60% sleeve gastrectomy). 73.3% were female, with mean age of 40.2 years (range 24-63). Mean preoperative body mass and apnea/hypopnea indexes of sleeve gastrectomy and gastric bypass were respectively 39.9 and 42.8 kg/m2, and 33.7 and 27.7 events/hour. Mean postoperative body mass and apnea/hypopnea indexes for sleeve gastrectomy and gastric bypass were 28.8 and 30.3 kg/m2, and 7.4 and 9.5 events/hour (0.3-27.3), respectively. There was no statistical difference between the groups regarding sleep apnea or weight control. Conclusion: Both surgical techniques are effective in controlling sleep apnea. Patients with lesser preoperative BMI were the main beneficiaries. A larger number of patients and studies may corroborate these findings.
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