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Pharmacological treatment of high-normal blood pressure (prehypertension) in high-risk patients for primary prevention of cardiovascular events.

ABSTRACT: Currently, the best treatment strategy for patients with a high-normal blood pressure (prehypertension) is not known. The authors aimed to determine whether pharmacological reduction of systolic blood pressure (SBP) to a normal level (<120 mm Hg) would prevent cardiac morbidity and mortality in prehypertensive patients. In this secondary analysis, the authors obtained the data from SPRINT from the National Heart, Lung, and Blood Institute data repository center. Among 9361 patients enrolled in SPRINT, 289 high-risk (ASCVD risk = 24.8% ± 13.0 [10-65]) prehypertensive patients without previous cardiovascular disease and not receiving any antihypertensive medications were enrolled. One hundred and forty-eight of them were assigned to standard treatment which consisted of clinical follow-up till SBP goes above 140 mm Hg and then staring medications to keep SBP <140 mm Hg. One hundred and forty-one were assigned to the intensive treatment receiving pharmacological SBP reduction to <120 mm Hg upon enrollment. The primary composite outcome was myocardial infarction, and other acute coronary syndromes, stroke, heart failure, or death from cardiovascular causes. Throughout the 3.06 years of follow-up, a primary outcome event was confirmed in three participants (0.74% per year) in the intensive-treatment group and 8 (1.61% per year) in the standard-treatment group (hazard ratio [HR], 0.19; P = .045). Rates of serious adverse events were not increased by intensive-treatment (HR, 0.83; P = .506). Based on this secondary post hoc analysis, intensive SBP reduction may probably be beneficial for primary prevention of cardiovascular morbidity and mortality in high-risk prehypertensive patients. This finding needs to be evaluated in a larger trial designed specifically to answer this question.

SUBMITTER: Borazjani R

PROVIDER: S-EPMC8029754 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Project description:ObjectiveTo compare cardiovascular risk among women with high normal blood pressure (130-9/85-9 mm Hg) against those with normal blood pressure (120-9/75-84 mm Hg) and those with baseline hypertension.DesignProspective cohort study.SettingWomen's health study, United States.Participants39 322 initially healthy women classified into four categories according to self reported baseline blood pressure and followed for a median of 10.2 years.Main outcome measuresTime to cardiovascular death, myocardial infarction, or stroke (major cardiovascular event-primary end point); progression to hypertension.Results982 (2.5%) women developed a major cardiovascular event, and 8686 (30.1%) women without baseline hypertension progressed to hypertension. The age adjusted event rate for the primary end point was 1.6/1000 person years among women with normal blood pressure, 2.9/1000 person years among those with high normal blood pressure, and 4.3/1000 person years among those with baseline hypertension. Compared with women with high normal blood pressure (reference group), those with normal blood pressure had a lower risk of a major cardiovascular event (adjusted hazard ratio 0.61, 95% confidence interval 0.48 to 0.76) and of incident hypertension (0.42, 0.40 to 0.44). The hazard ratio for a major cardiovascular event in women with baseline hypertension was 1.30 (1.08 to 1.57). Women who progressed to hypertension (reference group) during the first 48 months of the study had a higher cardiovascular risk than those who remained normotensive (adjusted hazard ratio 0.64, 0.50 to 0.81). Women with high normal blood pressure at baseline who progressed to hypertension (reference group) had similar outcome rates to women with baseline hypertension (adjusted hazard ratio 1.17, 0.88 to 1.55).ConclusionThe cardiovascular risk of women with high normal blood pressure is higher than that of women with normal blood pressure. The cardiovascular risk of women who progress to hypertension is increased shortly after a diagnosis of hypertension has been made.Trial registrationClinical trials NCT00000479 [ClinicalTrials.gov].

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Pharmacological treatment of high-normal blood pressure (prehypertension) in high-risk patients for primary prevention of cardiovascular events.

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