DORTHOSTATIC HYPOTENSION AND ITS RISK FACTORS IN OLDER PATIENTS TREATED HYPERTENSION AT HEART INSTITUTE OF HO CHI MINH CITY

Minh Trạng Bùi, Văn Yêm Nguyễn, Kim Tuyến Lê

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Abstract

Objectives: Determining the prevalence of orthostatic hypotension and its associations with treated hypertension in older patients at Heart Institute in HCMC. Methods: 198 patients aged 60-95 with treated hypertension as outpatients at the Heart Institute of Ho Chi Minh City from 11/2020 to 12/2020. All were measured blood pressure in sitting position at rest, at standing 1 minute and 3 minutes. Cross-sectional, descriptive study. Results: The average age: 69.6 ± 7.0, 36.4% male, 63.6% female. The prevalence of orthostatic hypotension after 1 minute was 22.2%, after 3 minutes was 16.2% and overall was 38.4%. Antihypertensive drugs commonly used in order: ACE/ARB – 87.4%, Beta blocker – 69.7%, Calcium blocker – 51.5%, diuretic – 32.8%, alpha blocker – 1.5 %; 83.4% of patients taking 2 or more classes of antihypertensive drugs. No association was found between OH and age, gender, antihypertensive drugs...; there was only an association between uncontrolled HTA and OH, with OR= 15,475 (p<0.001). Conclusions: The overall rate of orthostatic hypotension was 38.4%. The group of uncontrolled hypertension patients had a higher rate of OH than the group with well controlled hypertension patients (p < 0.001, OR=15,470).

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