Influencing Factors for Nocturnal Blood Pressure of OSAHS Patients
ZENG Yu-hui
CHAI Li-ping
LIANG Jian-gang
Abstract：Objective:To explore the relationship between polysomnography(PSG) findings and nocturnal blood pressure,and find out a predictable index for hypertension comorbidity associated with obstructive sleep apnea hypopnea syndrome(OSAHS).Method:63 patents with a diagnosis of OSAHS did the PSG concurrently with nocturnal ambulatory blood pressure monitor in lab.Regression analysis was applied to evaluate the relationship between PSG data and nocturnal blood pressure data.Result:The morbidity of hypertension in OSAHS patients was 42.9%.BMI was an independent influencing factor of the nocturnal basal blood pressure level(P<0.05).DT and NREM% were the risk factors of nocturnal variation in diastolic pressure(P<0.05).Conclusion:BMI mainly determines the baseline of nocturnal blood pressure,while nocturnal duration of hypoxemia and sleep structure disturbance mainly affect the nocturnal diastolic pressure fluctuation.OSA patients with obesity,higher DT or NREM% in the PSG should be alerted to the potential of having hypertension comorbidity.
Keywords：Obstructive sleep apneaPolysomnographyOxyhemoglobin saturationHypertension
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 10-11,12 )