RESUMEN
Objective To explore the efficacy of modified uvula palatopharyngeal plasty in the treatment of obstructive sleep ap-nea syndrome(OSAHS) .Methods 145 cases of OSAHS patients were treated from June 2006 to June 2010 in our hospital ,of which 54 were treated by traditional UPPP surgery ,and the remaining 91 cases were treated by h-UPPP surgery .Compared its effi-cacy by the preoperative and postoperative polysomnography map (PSG) analysis .Results In 145 cases of patients with OSAHS , the PSG monitoring indicators of 1 year after surgery were compared with preoperative ,and there were significant difference in the apnea total time(AI) ,the breathing hypopnea index(AHI) ,the lowest oxygen saturation(SaO2 )(P<0 .05) .The subjective symp-toms in postoperative recovery process of modified UPPP ,such as dry throat ,open nasal ,nasopharyngeal reflux symptoms were sig-nificantly reduced than that of traditional UPPP surgery .Conclusion h-UPPP surgery have a good effect .