阻塞性睡眠呼吸暂停低通气综合征与心律失常的关系

目的探讨阻塞性睡眠呼吸暂停低通气综合征(OSAHS)与心律失常的关系。方法160例睡眠打鼾患者经多导睡眠呼吸监测仪(PSG)进行夜间7h以上睡眠监测并同步监测24h动态心电图,根据PSG监测结果分为98例OSAHS组和62例正常对照组进行对照分析。结果OSAHS组睡眠呼吸暂停低通气指数(AHI)、动态脉搏容积血氧饱和度(SpO2)改变及心律失常发生率较对照组差别有显著意义(P<0.01),伴随着呼吸暂停、SpO2下降心率变化呈周期性改变,SpO2低于80%时心律失常发生率明显增多。结论OSAHS患者夜间睡眠时的低氧血症、自主神经张力的改变是引起心律失常的重要原因。

Relationship between Obstructive Sleep Apnea Hypopnea Syndrome and Cardiac Arrhythmia

Objective To investigate the relationship between obstructive sleep apnea hypopnea syndrome(OSAHS) and cardiac arrhythmia. Methods 160 snorers were recruited to undergo more than 7 hours nocturnal polysomnography(PSG) and 24 hours ECG monitoring, and were divided into OSAHS group (n=98) and control group (n=62) based on the results of PSG monitoring. Results There were significant differences in sleep apnea hypopnea index(AHI), SpO_2 and cardiac arrhythmia frequency between the OSAHS and control groups. Accompanying with the breath pause, SpO_2 decreased, and heart rate was periodic changes. The frequency of cardiac arrhythmia obviously increased when SpO_2 was lower than 80%. Conclusion During sleep the low oxygen saturations and fluctuation of autonomic nervous system play important roles in the cardiac arrhythmia in OSAHS patients.