[The value of treadmill exercise test for patients with moderate obstructive sleep apnea-hypopnea syndrome]

To determine the value of treadmill exercise test in predicting patients with moderate OSAHS treated by uvulopalatopharyngoplasty (UPPP) and tone base reduction or oral appliance.

Sixty-six patients were treated by UPPP and tone base reduction or oral appliance. The data including PSG (AHI, SaO2) and treadmill exercise test (METs) was analysed.

The success rate (percentage of patients with at least 50% reduction in AHI) of UPPP and tone base reduction was 86.7%, and 84.8% in oral appliance. The difference (AHI, SaO2, METs or the success rate) between the groups of postoperation or oral appliance was nonsignificant (P > 0.05).

As to moderate OSAHS, the UPPP and tone base reduction or oral appliance may be one of the effective therapy. The data including PSG (AHI, SaO2) and METs may be very useful in predicting effectiveness of treatment to OSAHS.