pnea/hypopnea,AHI)≥5。urs30ormoretimesduringa7-pletecessations(apnea)andpartialobstructions(hypopnea)urringperhourofsleep.ObstructiveSleepApneaSyndrome(OSAS)?阻塞性睡眠呼吸暂停综合征表现为睡眠中口鼻气流中断,而胸腹呼吸运动仍存在;airstopsflowingthroughthenoseandmouth,butthoracicandabdominalbreathingeffortsareuninterrupted.临床上最多见。CentralSleepApneaSyndrome?(CSAS)?中枢性睡眠呼吸暂停综合征呼吸暂停时,胸腹运动同时消失;bothoralbreathingandthoracic-abdominalbreathingeffortsaresimultaneouslyinterrupted单纯CSAS较少见,不超过10%;可与OSAS同时存在。MixedSleepApneaSyndrome?(MSAS)?混合性睡眠呼吸暂停综合征OSAS与CSAS混合存在。Usually,abriefperiodofcentralapneaisfollowedbyalongerperiodofobstructiveapnea呼吸气流图OSASCSASMSASSleepHypopnaeEpidemiologyofSAS?流行病学SAS的发病率:美国4%上海3.6%其中男性为女性的4倍国内患者约为5千万RiskFactors?高危因素分析肥胖Obesity(BMI≥25)75.9%颈围大NeckCircumference(男性≥41cm,女性≥38cm)63.2%男性 Male78.5% 年龄Age(35—55岁)66.4%