Effect of mean apnea-hypopnea duration in patients with obstructive sleep apnea on clinical and polysomnography parameter

• Published in: Sleep & breathing 2020-03, Vol.24 (1), p.77-81
• Main Authors: Saraç, Sema, Afsar, Gulgun Cetintaş
• Format: Article
• Language: English
• Subjects: Anthropometry; Apnea; Body mass index; Correlation of Data; Dentistry; Disorders of Excessive Somnolence - classification; Disorders of Excessive Somnolence - diagnosis; Female; Follow-Up Studies; Humans; Hypertension - classification; Hypertension - diagnosis; Internal Medicine; Male; Medicine; Medicine & Public Health; Neck; Neurology; Otorhinolaryngology; Patients; Pediatrics; Pneumology/Respiratory System; Polysomnography; Risk Factors; Sex Factors; Sleep and wakefulness; Sleep apnea; Sleep Apnea Syndromes - classification; Sleep Apnea Syndromes - diagnosis; Sleep Apnea, Obstructive - classification; Sleep Apnea, Obstructive - diagnosis; Sleep Breathing Physiology and Disorders • Original Article; Sleep disorders; Sleep Stages; Snoring - classification; Snoring - diagnosis; Time Factors
• ISSN: 1520-9512; 1522-1709
• DOI: 10.1007/s11325-019-01870-y

Objective Apnea-hypopnea index is the number of apnea-hypopnea events observed during polysomnography within an hour. Mean apnea-hypopnea duration is the mean duration of all apneas and hypopneas. In this study, we aimed to investigate the association of mean apnea-hypopnea duration in patients with obstructive sleep apnea with clinical and polysomnographic parameters. Methods In our hospital, a total of 764 patients were diagnosed with OSA by polysomnography in 2017. Age, body mass index, and the current diseases were recorded. Sleep structures obtained from polysomnography readings, blood oxygen levels, apnea-hypopnea index, and mean average duration were recorded. Patients with mean average duration of 20 s or more were assigned to the long average duration group and those with less than 20 s were assigned to the short average duration group. Groups were compared in terms of clinical and polysomnographic parameters. Results Snoring, witnessed apnea, morning tiredness, and hypertension were significantly higher in the long average duration group. There was statistically significantly more male patients and higher neck circumference in the MAD group. Total wake duration, percentage of sleep, stage 3, stage 1, and mean oxygen saturation percentage of the long average duration group were significantly reduced. Conclusion In present study, the patients with obstructive sleep apnea with long average duration were found to have more negative effects of sleep apnea than the patients with short average duration. We think that the use of mean apnea-hypopnea duration as an indicator with apnea-hypopnea index will be beneficial for the follow-up and treatment of the disease.