Sleep apnea syndrome is one of the cause of hypertension, relating to cardiovascular risk and cardiovascular disease, independently associated with other risks. In Vietnam, there are still a few study about the relation between hypertension and obstructive sleep apnea syndrome (OSAS).Design and method:
Cross-sectional study with the short-term follow up and compare to the control group. Include 230 patients: 134 hypertension patients and 96 patients without hypertension. We used portable polysomnography StarDust II combine with clinical symptoms to diagnose obstructive sleep apnea syndrome.Results:
- AHI in the OSAS patients with hypertension is 29.77 ± 13.03, higher than AHI in the OSAS patients without hypertension 25.21 ± 14.37 (p < 0,05) - There are strong positive correlation between AHI and systolic blood pressure with r = 0,407, p < 0,001. In multivariable analysis the affect of cardiovascular risk to AHI: two risk with statistic signification are hypertension (p < 0,01) and obesity (p < 0,05).Conclusions:
High blood pressure makes the OSAS more severe status.