BACKGROUND: An altered diurnal blood pressure (BP) pattern has been linked to the risk of developing heart failure (HF). We tested whether an altered diurnal BP pattern is associated with adverse outcomes (death or hospitalization for HF exacerbation) in patients with HF. METHODS AND RESULTS: A total of 118 patients with HF were enrolled from a tertiary care HF clinic and followed for death or HF hospitalization for up to 4 years; 24-hour ambulatory BP was monitored. Forty patients (34%) had a normal BP dipping pattern (night-day ambulatory BP ratio < 0.9), 44 patients (37%) had a nondipping pattern (0.9 < or = night-day ambulatory BP ratio < 1.0), and 34 patients (29%) had a reverse dipping BP pattern (night-day ambulatory BP ratio > or = 1.0). A total of 39 patients had an adverse outcome. Adverse outcome rates were the lowest in dippers and the highest in reverse dippers (log rank P = .052). Predictors of adverse outcomes, selected on the basis of log likelihood contrast, were as follows: New York Heart Association functional class (hazard ratio [HR] 1.96, 95% confidence interval [CI] 1.11-3.44), anemia (HR 2.50, 95% CI 1.23-5.08), and dipping status (HR 1.65, 95% CI 1.08-2.50). CONCLUSION: In addition to other traditional predictors, BP dipping status may be an important prognostic factor in HF.
BACKGROUND: An altered diurnal blood pressure (BP) pattern has been linked to the risk of developing heart failure (HF). We tested whether an altered diurnal BP pattern is associated with adverse outcomes (death or hospitalization for HF exacerbation) in patients with HF. METHODS AND RESULTS: A total of 118 patients with HF were enrolled from a tertiary care HF clinic and followed for death or HF hospitalization for up to 4 years; 24-hour ambulatory BP was monitored. Forty patients (34%) had a normal BP dipping pattern (night-day ambulatory BP ratio < 0.9), 44 patients (37%) had a nondipping pattern (0.9 < or = night-day ambulatory BP ratio < 1.0), and 34 patients (29%) had a reverse dipping BP pattern (night-day ambulatory BP ratio > or = 1.0). A total of 39 patients had an adverse outcome. Adverse outcome rates were the lowest in dippers and the highest in reverse dippers (log rank P = .052). Predictors of adverse outcomes, selected on the basis of log likelihood contrast, were as follows: New York Heart Association functional class (hazard ratio [HR] 1.96, 95% confidence interval [CI] 1.11-3.44), anemia (HR 2.50, 95% CI 1.23-5.08), and dipping status (HR 1.65, 95% CI 1.08-2.50). CONCLUSION: In addition to other traditional predictors, BP dipping status may be an important prognostic factor in HF.
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