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Decreased cardiac mortality with nicorandil in patients with ischemic heart failure.

BACKGROUND: Effective treatments in heart failure (HF) patients with ischemic etiology have not been fully established. Nicorandil, combination of nitrate component and sarcolemmal adenosine triphosphate-sensitive potassium channel opener, is a potent vasodilator of coronary and peripheral vessels and has been used as an antianginal agent. Therefore, we examined impacts of nicorandil on cardiac mortality in ischemic HF patients.

METHODS: Consecutive 334 HF patients with ischemic etiology were retrospectively registered and divided into 2 groups based on oral administration of nicorandil: nicorandil group (n = 116) and non-nicorandil group (n = 218). We retrospectively examined cardiac mortality.

RESULTS: In the Kaplan-Meier analysis (mean follow-up period 963 days), cardiac mortality was significantly lower in the nicorandil group than in the non-nicorandil group (11.2% vs. 19.7%, P = 0.032). In the Cox proportional hazard analysis, usage of nicorandil was a suppressor of cardiac mortality (hazard ratio 0.512, 95% confidence interval 0.275-0.953, P = 0.035), and this result was consistent in several subgroup analyses, such as left ventricular ejection fraction, percutaneous coronary intervention, coronary artery bypass graft, diabetes, β-blockers, and statins.

CONCLUSION: Nicorandil is potentially effective for reducing mortality in patients with ischemic heart failure.

TRIAL REGISTRATION: This was a retrospective study.

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