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Blood-Pressure lowering in intermediate-risk Persons without cardiovascular disease

Lonn, Eva M; Bosch, Jackie; López Jaramillo, Patricio; Zhu, Jun; Liu, Lisheng; Pais, Prem; Diaz, Rafael; Xavier, Denis; Sliwa, Karen; Dans, Antonio; Avezum, Alvaro; Piegas, Leopoldo S; Keltai, Katalin; Keltai, Matyas; Chazova, Irina; Peters, Ron J. G; Held, Claes; Yusoff, Khalid; Lewis, Basil S; Jansky, Petr; Parkhomenko, Alexander; Khunti, Kamlesh; Toff, William D; Reid, Christopher M; Varigos, John B; Leiter, Lawrence A; Molina, Dora I; McKelvie, Robert; Pogue, Janice; Wilkinson, Joanne; Jung, Hyejung; Dagenais, Gilles; Yusuf, Salim.
N Engl J Med; 374(21): 2009-2020, 2016.
Artigo em Inglês | Sec. Est. Saúde SP | 2016 | ID: ses-34743
Resumo: BACKGROUND: Antihypertensive therapy reduces the risk of cardiovascular events among high-risk persons and among those with a systolic blood pressure of 160 mm Hg or higher, but its role in persons at intermediate risk and with lower blood pressure is unclear. METHODS: In one comparison from a 2-by-2 factorial trial, we randomly assigned 12,705 participants at intermediate risk who did not have cardiovascular disease to receive either candesartan at a dose of 16 mg per day plus hydrochlorothiazide at a dose of 12.5 mg per day or placebo. The first coprimary outcome was the composite of death from cardiovascular causes, nonfatal myocardial infarction, or nonfatal stroke; the second coprimary outcome additionally included resuscitated cardiac arrest, heart failure, and revascularization. The median follow-up was 5.6 years. RESULTS: The mean blood pressure of the participants at baseline was 138.1/81.9 mm Hg; the decrease in blood pressure was 6.0/3.0 mm Hg greater in the active-treatment group than in the placebo group. The first coprimary outcome occurred in 260 participants (4.1%) in the active-treatment group and in 279 (4.4%) in the placebo group (hazard ratio, 0.93; 95% confidence interval [CI], 0.79 to 1.10; P=0.40); the second coprimary outcome occurred in 312 participants (4.9%) and 328 participants (5.2%), respectively (hazard ratio, 0.95; 95% CI, 0.81 to 1.11; P=0.51). In one of the three prespecified hypothesis-based subgroups, participants in the subgroup for the upper third of systolic blood pressure (>143.5 mm Hg) who were in the active-treatment group had significantly lower rates of the first and second coprimary outcomes than those in the placebo group; effects were neutral in the middle and lower thirds (P=0.02 and P=0.009, respectively, for trend in the two outcomes)...(AU)
Biblioteca responsável: BR79.1
Localização: BR79.1