MỐI LIÊN QUAN GIỮA HẠ HUYẾT ÁP TƯ THẾ VÀ TĂNG HUYẾT ÁP TRÊN NGƯỜI BỆNH CAO TUỔI KHÁM NGOẠI TRÚ

Abstract

Background: Orthostatic hypotension (OH) is a common clinical problem in the elderly, can increase their risks of falling and mortality. Most studies demonstrate association between hypertension and orthostatic hypotension in the elderly. However, in Viet Nam, this association has not been studied. Objectives: To determine association between hypertension and OH in the elderly at geriatric clinic. Methods: Descriptive and cross-sectional study in 414 elderly outpatients at geriatric clinic from Mars 2019 to May 2019 at University Medical Center Ho Chi Minh city. Results: Hypertension was identified as independent factor associated with OH (OR = 7.0; 95% CI 2.9 – 17.1; p < 0.01). The prevalence of OH increases with the stages of hypertension (p < 0.01). Uncontrolled hypertenion was an independent factor associated with OH (OR = 3.4; p = 0.01). There was a positive correlation between orthostatic systolic blood pressure (SBP) decline while standing up and basal supine SBP that fitted a linear regression equation (y = 0.2 x -18.4; r = 0.2; p <0.01). Conclusions: Uncontrolled hypertension was an independent factor associated with OH and the prevalence of OH increased with the stages of hypertension. In conclusion, good control of blood pressure in the elderly was important to decrease the prevalence of OH, from that reducing the consequences of OH in the elderly.