Relationship Between Obstructive Sleep Apnea Syndrome And Arrhythmia And The Effect Of Nasal Continuous Positive Airway Pressure On Arrhythmia

Objective: To explore the relationship between obstructive sleep apnea syndrome(OSAS) and arrhythmia and the effect of nasal continuous positive airway pressure(nCPAP) on arrhythmia induced by OSAS. Methods: 92 snorers were recruited to undergo more than 7 hours nocturnal polysomnography(PSG) and dynamic electrocardiogram(DCG) monitoring, were divided into OSAS group(n = 70) and control group (simple snoring group, n = 22) based on the results of PSG monitoring. The following nocturnal parameters were compared: longest apnea time(LAT); mean apnea time(MAT); apnea hypopnea index(AHI); minimum arterial oxygen saturation(mSaO2); arrhythmia frequency and types. 18 moderate and severe OSAS patients accompanied by arrhythmia were treated with nCPAP and their parameters were compared before and after treatment. Results: OSAS group was longer than control group in LAT, MAT, and larger in AHI(36.64, 3.21 times per hour), while lower in mSaO₂ (69.09%, 92.75%), there was significant difference between the two groups(P<0.01). The frequency of cardiac arrhythmia was significant higher in OSAS group than that of control group (52.86%, 18.18%, P<0.01). With the severity of OSAS degree, during the mild, moderate and severe OSAS groups ,LAT and MAT became gradually longer,...