The influence of difference position on obstructive sleep apneahypoxemia syndrome

Objective: To study the relations of positions and Apneahypoxemia Index and Oxygen Saturation in patients with obstructive sleep apnea-hypoxemia syndrome. Methods: Retrospectively analyze polysomnogramphy results of 50 patients who were diagnosed with obstructive sleep apnea-hypoxemia syndrome,and compare sleep parameters when patients were supine with parameters when they were non-supine. Results: AHI in those patients then they were supine was much higher as compared with when they were sideways,and the time that patients' Oxygen Saturation 90% can be prolonged in evidence when they are sleeping from sideways to supinely (P0.01). Conclusion: These results suggest that the incidence of sleep apneahypoxemia and Oxygen Saturation can be reduced when patients were sleeping sideways.