http://stroke.ahajournals.org/content/46/8/2113.abstract?etoc
- Peter M. Okin, MD;
- Sverre E. Kjeldsen, MD;
- Richard B. Devereux, MD
+ Author Affiliations
- Correspondence to Peter M. Okin, MD, Weill Cornell Medical College, 525 E 68th St, New York, NY 10065. E-mail pokin@med.cornell.edu
Abstract
Background and Purpose—Hypertensive
patients with electrocardiographic left ventricular hypertrophy are at
increased risk of all-cause and cardiovascular
death. Lowering blood pressure (BP) after
stroke reduces the risk of recurrent stroke, but recent data suggest
that lower
systolic BP (SBP) measured 5 years after
stroke is associated with increased mortality. Whether lower SBP is
associated with
increased short-term mortality after stroke
in hypertensive patients is unclear.
Methods—All-cause
and cardiovascular mortality were examined in relation to average
on-treatment SBP after stroke in 541 hypertensive
patients with electrocardiographic left
ventricular hypertrophy randomly assigned to losartan- or atenolol-based
treatment
who had new strokes during follow-up.
Patients with on-treatment SBP<144 mm Hg (lowest tertile) and
SBP>157 (highest tertile)
were compared with patients with average SBP
between 144 and 157.
Results—During
2.02±1.65 years mean follow-up after incident stroke, 170 patients
(31.4%) died, 135 (25.0%) from cardiovascular causes.
In multivariate Cox analyses, adjusting for
significant univariate predictors of mortality, compared with average
SBP between
144 and 157, an average SBP<144 was a
significant predictor of all-cause (hazard ratio, 1.81; 95% confidence
interval, 1.20–2.73)
and cardiovascular mortality (hazard ratio,
1.60; 95% confidence interval, 1.02–2.54), whereas patients who had an
average
SBP>157 had no significant increased risk
of death.
Conclusions—Lower
achieved SBP (<144 mm Hg) is associated with a significantly
increased risk of cardiovascular and all-cause mortality
after initial stroke in hypertensive patients
during short-term follow-up. Further study is required to determine
ideal SBP
goals after stroke.
Clinical Trial Registration—URL: http://clinicaltrials.gov/. Unique identifier: NCT00338260.
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