Prevalence of sleep apnea and electrocardiographic disturbances in morbidly obese patients

Autor: Maria J. Rosales, Matilde Valencia‐Flores, Donald L. Bliwise, Rosa M. Campos, Montserrat Resendiz, Jorge González, Verónica Rebollar, Victoria Santiago, José Gallegos, Arturo Orea, Jorge Oseguera, Violeta A. Castaño, Guillermo García-Ramos
Rok vydání: 2000
Předmět:
Zdroj: Obesity research. 8(3)
ISSN: 1071-7323
Popis: Objective: To determine the prevalence of sleep apnea in morbidly obese patients and its relationship with cardiac arrhythmias. Research Methods and Procedures: Fifty-two consecutive morbidly obese (body mass index ≥ 40 kg/m2) outpatients from the Obesity Clinic of the National Institute of Nutrition Salvador Zubiran underwent two nights of polysomnography with standard laboratory techniques. Electrocardiographic polysomnography signals (Lead II) were evaluated by two experienced cardiologists, and sleep complaints were measured with a standard sleep questionnaire (Sleep Disorders Questionnaire). In order to make comparisons between groups with different severities of sleep-disordered breathing, we classified the patients in four groups using the apnea-hypopnea index (AHI): Group 1, AHI 5 < 15 (n = 10); Group 2, AHI 15 < 30 (n = 10); Group 3, AHI 30 < 65 (n = 14); Group 4, AHI ≥ 65 (n = 17). Results: A wide range of sleep-disordered breathing, ranging from AHI of 2.5 to 128.9 was found. Ninety-eight percent of the sample (n = 51) had an AHI ≥ 5 (mean = 51 ± 37), and 33% had severe sleep apnea with AHI ≥ 65 with a mean nocturnal desaturation time of
Databáze: OpenAIRE