The effect of antihypertensive monotherapy and combination on blood pressure in stroke patients

Abstract

Background: Stroke is a syndrome characterized by loss of focal and function of the rapidly developing CNS. Furthermore, hypertension is a known risk factor that occurs approximately 70% of the time, and lowering systolic BP from 1 to 3 mmHg effectively reduces the risk of stroke by 20 to 30%. Methods: An observational analytic design, using a retrospective medical record data collection in Malang City Hospital. A total of 113 patients met the inclusion criteria. In addition, the inclusion criteria include hospitalized patients with a primary diagnosis of stroke, ischemia or bleeding as evidenced by a head CT scan, having comorbid hypertension, and having received antihypertensive therapy. Meanwhile, the exclusion criteria were the BP data of the patient measured only once. Results: The results showed the ability of antihypertensive monotherapy and combinations to lower systolic BP by 33.62 ± 30.15 mmHg and 30.50 ± 29.47 mmHg (p = 0.744) in ischemic patients. In comparison, diastolic BP decreased by 6.86 ± 13.18 mmHg and 11.50 ± 16.26 mmHg (0.291), respectively. Moreover, the administration in bleeding stroke patients resulted in a decrease to 16.95 ± 17.89 mmHg and 22.82 ± 23.91 mmHg, (p = 0.029) for systolic, and 8.63 ± 14.63 mmHg and 8.71 ± 17.17 mmHg (p = 0.647) for diastolic BP, respectively. Furthermore, a combination of 4 antihypertensives drugs showed a better decrease in systolic BP in both patients (44.50 ± 21.63) compared to monotherapy, and a mixture of 2 as well as three drugs, by 27.02±27.05, 25.65 ± 29.97, and 25.37 ± 25.08 (p = 0.027), respectively. Conclusions: Combination therapy is recommended in stroke patients because BP can be better controlled.