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  • Title: Intravenous nicorandil for treatment of the urgent phase acute heart failure syndromes: A randomized, controlled trial.
    Author: Harada K, Yamamoto T, Okumura T, Shigekiyo M, Terada N, Okada A, Kawata A, Iima T, Harada T, Fujisawa K, Kageyama N, Saito A, Yamamoto H, Fujinaga H.
    Journal: Eur Heart J Acute Cardiovasc Care; 2017 Jun; 6(4):329-338. PubMed ID: 26884620.
    Abstract:
    BACKGROUND: Vasodilators, such as nitroglycerin, have long been first-line treatments for acute heart failure syndromes (AHFS). Nicorandil is a vasodilator with dual potassium channel opening and nitrate properties. However, there are no randomized controlled studies of intravenous nicorandil safety and efficacy in the urgent phase AHFS. We examined the symptomatic, hemodynamic, and echocardiographic effects and safety, and 60-day clinical outcomes of intravenous nicorandil, in addition to standard therapy, in patients with AHFS in the urgent phase. METHODS: In this prospective, randomized controlled trial, 106 AHFS patients were randomized within one hour of arrival to receive either standard therapy (control group, n=56) or standard therapy plus simultaneous intravenous nicorandil (0.2 mg/kg bolus followed by 0.2 mg/kg/h for 24 h; nicorandil group, n=50). Outcomes were assessed at 60 days. RESULTS: Patients in the nicorandil group exhibited greater improvement of dyspnea as measured by change in a five-point Likert scale compared to those in the control group (after 1 h infusion: p=0.006, 6 h; p<0.001). The nicorandil group also showed significantly improved E/e', an estimate of left ventricular filling pressure, at 1 and 24 h ( p=0.001 and p=0.004, respectively). In addition, intravenous nicorandil therapy was safe and did not cause side effects such as excessive hypotension or reflex tachycardia. However, it did not reduce all-cause mortality and readmission rates at 60 days. CONCLUSIONS: Addition of intravenous nicorandil to standard therapy for urgent phase AHFS improved dyspnea and left ventricular diastolic function but not 60-day outcome.
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