ABSTRACT
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.
ABSTRACT
Objective To explore the value of nasal continuous positive airway pressure(nCPAP) in treating obstructive sleep apnea syndrome(OSAHS). Methods According to the efficacy of nCPAP, 76 patients with OSAHS were divided into treatment success group(n=50) and control group(n=26), and indices before and after treatment were analyzed. Results The longest and average apnea duration as well as the lowest oxygen saturation(SpO 2) increased, while apnea-hypopnea index(AHI) decreased (P