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Eur Heart J. 2009 Oct;30(19):2337-45. doi: 10.1093/eurheartj/ehp358. Epub 2009 Aug 31.

Relationship between ivabradine treatment and cardiovascular outcomes in patients with stable coronary artery disease and left ventricular systolic dysfunction with limiting angina: a subgroup analysis of the randomized, controlled BEAUTIFUL trial.

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1
Royal Brompton Hospital, Sydney Street, London, UK. k.fox@rbht.nhs.uk

Abstract

AIMS:

BEAUTIFUL found no impact of ivabradine on outcomes in patients with stable coronary artery disease (CAD) and left ventricular systolic dysfunction (LVSD). We performed a post hoc analysis of the effect of ivabradine in BEAUTIFUL patients whose limiting symptom at baseline was angina, particularly in terms of coronary outcomes.

METHODS AND RESULTS:

Of the BEAUTIFUL population, 13.8% had limiting angina at baseline (734 ivabradine, 773 placebo); of these, 712 patients had heart rate > or =70 b.p.m. Median duration of follow-up was 18 months. Ivabradine was associated with a 24% reduction in the primary endpoint (cardiovascular mortality or hospitalization for fatal and non-fatal myocardial infarction [MI] or heart failure) (HR, 0.76; 95% CI, 0.58-1.00) and a 42% reduction in hospitalization for MI (HR, 0.58, 95% CI, 0.37-0.92). In patients with heart rate > or =70 b.p.m., there was a 73% reduction in hospitalization for MI (HR, 0.27, 95% CI, 0.11-0.66) and a 59% reduction in coronary revascularization (HR, 0.41, 95% CI, 0.17-0.99). Ivabradine was safe and well tolerated.

CONCLUSION:

Our analyses raises the possibility that ivabradine may be helpful to reduce major cardiovascular events in patients with stable CAD and LVSD who present with limiting angina. However, a large-scale clinical trial is ongoing, which will formally test this hypothesis.

PMID:
19720635
DOI:
10.1093/eurheartj/ehp358
[Indexed for MEDLINE]
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