AIMS: Low systolic blood pressure (SBP) is associated with poor outcomes in heart failure and complicates management. In a post hoc analysis, we investigated the efficacy and safety of ivabradine in the SHIFT population divided by tertiles of baseline SBP. METHODS AND RESULTS: The analysis comprised 2110 patients with SBP <115 mmHg, 1968 with 115≤ SBP <130 mmHg, and 2427 with SBP ≥130 mmHg. Patients with low SBP were younger, had lower ejection fraction, and were less likely to be at target beta-blocker dose than patients in the other SBP groups. Ivabradine was associated with a similar relative risk reduction of the composite outcome in the three SBP groups [SBP <115 mmHg, hazard ratio (HR) = 0.84, 95% confidence interval (CI) 0.72-0.98; 115≤ SBP <130 mmHg, HR = 0.86, 95% CI 0.72 to 1.03; SBP ≥130 mmHg, HR = 0.77, 95% CI 0.66 to 0.92; P interaction = 0.68]. Similar results were found for cardiovascular mortality (P interaction = 0.91), hospitalization because of heart failure (P interaction = 0.79), all-cause mortality (P interaction = 0.90), and heart failure mortality (P interaction = 0.18). There was no evidence for a difference in safety profile according to SBP group. CONCLUSION: The efficacy and safety of ivabradine is independent of SBP. This may have implications for the management of HF patients with low SBP and elevated heart rate.
RCT Entities:
AIMS: Low systolic blood pressure (SBP) is associated with poor outcomes in heart failure and complicates management. In a post hoc analysis, we investigated the efficacy and safety of ivabradine in the SHIFT population divided by tertiles of baseline SBP. METHODS AND RESULTS: The analysis comprised 2110 patients with SBP <115 mmHg, 1968 with 115≤ SBP <130 mmHg, and 2427 with SBP ≥130 mmHg. Patients with low SBP were younger, had lower ejection fraction, and were less likely to be at target beta-blocker dose than patients in the other SBP groups. Ivabradine was associated with a similar relative risk reduction of the composite outcome in the three SBP groups [SBP <115 mmHg, hazard ratio (HR) = 0.84, 95% confidence interval (CI) 0.72-0.98; 115≤ SBP <130 mmHg, HR = 0.86, 95% CI 0.72 to 1.03; SBP ≥130 mmHg, HR = 0.77, 95% CI 0.66 to 0.92; P interaction = 0.68]. Similar results were found for cardiovascular mortality (P interaction = 0.91), hospitalization because of heart failure (P interaction = 0.79), all-cause mortality (P interaction = 0.90), and heart failure mortality (P interaction = 0.18). There was no evidence for a difference in safety profile according to SBP group. CONCLUSION: The efficacy and safety of ivabradine is independent of SBP. This may have implications for the management of HF patients with low SBP and elevated heart rate.
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