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[Differential diagnosis of obstructive and central sleep apnea in polysomnographic investigation]
Terapevticheskii Arkhiv
|June 8, 1999
Abstract
Aim:
To try validity of polysomnography in differential diagnosis of obstructive and central sleep apnea (SA).
Materials And Methods:
A retrospective analysis was made of 138 cases of sleep apnea (SA) subjected to polysomnography. 79 of them were treated with continuous positive pressure.
Results:
In clinical practice it is rather difficult to distinguish between central and obstructive SA. In this respect, polysomnography was also unreliable as it is predisposed to hyperdiagnosis of central SA.
Conclusion:
In SA diagnosis, polysomnography should be used in combination with other diagnostic methods. In indeterminate diagnosis, a test course of the positive pressure is recommended to exclude obstructive SA.