Abstract:
BACKGROUND AND PURPOSE:Patients with atrial fibrillation have a high risk of stroke and other vascular events even if anticoagulated. The primary objective here is to determine whether routine blood pressure-lowering provides additional protection for this high-risk patient group. METHODS:This study was a subsidiary analysis of the Perindopril Protection Against Recurrent Stroke Study (PROGRESS)--a randomized, placebo-controlled trial that established the beneficial effects of blood pressure--lowering in a heterogeneous group of patients with cerebrovascular disease. A total of 6105 patients were randomly assigned to either active treatment (2 to 4 mg perindopril for all participants plus 2.0 to 2.5 mg indapamide for those without an indication for or a contraindication to a diuretic) or matching placebo(s). Outcomes are total major vascular events, cause-specific vascular outcomes, and death from any cause. RESULTS:There were 476 patients with atrial fibrillation at baseline, of whom 51% were taking anticoagulants. In these patients, active treatment lowered mean blood pressure by 7.3/3.4 mm Hg and was associated with a 38% (95% confidence interval [CI], 6 to 59) reduction in major vascular events and 34% (95% CI, -13 to 61) reduction in stroke. The benefits of blood pressure-lowering in patients with atrial fibrillation were achieved irrespective of the use of anticoagulant therapy (P homogeneity=0.8) or the presence of hypertension (P homogeneity=0.4). CONCLUSIONS:For most patients with atrial fibrillation, routine blood pressure-lowering is likely to provide protection against major vascular events additional to that conferred by anticoagulation.
journal_name
Strokejournal_title
Strokeauthors
Arima H,Hart RG,Colman S,Chalmers J,Anderson C,Rodgers A,Woodward M,MacMahon S,Neal B,PROGRESS Collaborative Group.doi
10.1161/01.STR.0000181115.59173.42subject
Has Abstractpub_date
2005-10-01 00:00:00pages
2164-9issue
10eissn
0039-2499issn
1524-4628pii
01.STR.0000181115.59173.42journal_volume
36pub_type
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