PMID: 16646400May 2, 2006Paper

Research on the change of PSG parameters of OSAHS patients before and after UPPP operation

Lin chuang er bi yan hou ke za zhi = Journal of clinical otorhinolaryngology
Wendong WangQiang Wang

Abstract

To study the change of polysomnography (PSG) parameters of obstructive sleep apnea hypopnea syndrome (OSAHS) patients before and after uvulopalatopharyngoplasty (UPPP) operation. Having PSG detection for this 20 OSAHS patients both before and after UPPP operation. (1) After UPPP operation, AHI (P<0.01), average SaO2 (P<0.01), Min SaO2 (P<0.01), and apnea time contrast (P<0.05)have improvements; (2) After UPPP operation, the change of sleep stage mainly S2 stage replaced S stage. (3) In observation index of PSG, both the relationship between AHI and oxygen saturation and the relationship between AHI and apnea time have correlation, but correlation of the former has more significant difference in statistics. The change of AHI and MinSaO2 after UPPP operation has correlation also. The secant plane of oropharynx can be regarded as the predictive index for OSAHS severity and guideline for UPPP operation, but the change of oropharyngeal secant plane after operation can not be used as the predictive index for therapeutic effectiveness. So we treat oxygen saturation as a more sensitive marker than apnea time in predicting severity degree of OSAHS. After UPPP operation, the change of sleep stage mainly S2 replaced S1 stage.

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