Overweight is the most important risk factor for the development of Sleep Apnea (OSA). Weight loss is an essential therapeutic measure that helps to effectively control and revert the syndrome. Outcome: to evaluate the prevalence of overweight in a population of patients with moderate to severe OSA and to determine the percentage of those patients that significantly lose weight after specific indication.
Consecutive sample of patients with moderate to severe OSA diagnosed by Polysomnography (PSG). OSA severity was established by the Respiratory Disturbance Index (RDI), normal < 5 ev/h; mild 5–14,9; moderate 15–29,9 and severe ≥30. All patients with excessive weight were encouraged to visit a nutritionist and to lose weight, through verbal and written indications.Between 6 and 12 month after diagnostic PSG, a telephonic survey about weight evolution and adopted measures for its control was performed. Overweight was considered when BMI exceeded 25 k/m2, obesity BMI >30 k/m2 and morbid obesity with BMI >35k/m2. Sample characteristics and related proportions for every evaluated issue are described.
n: 417 patients, 313 answered the survey (answer rate 75%). 256 males (81.8%); age: 53.03 ± 13.07 y/o; weight: 98.59 ± 26.92 kg; RDI 52.33 ± 24.26 ev/h.290 patients (92.6%) were overweight, 102 (32.6%) obese and 108 (34.5%) morbid obese. 129 (41.2%) affirmed in the survey to have lost weight. However, when we compare reference weight taken at PSG study and control weight at the survey moment, 104 patients (33.2%) increased their weight and only 33 (10.5%) lost more than 10% of basal weight. Just 121 patients (38.6%) consulted a nutritionist.
Overweight prevalence in our population of OSA patients is very high. A few overweight patients consulted a nutritionist and very few of them significantly lost weight.
We should make bigger efforts and revise our strategy in order to obtain that our patients normalize their weight as a key component of OSA treatment.
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