A Pediatric Case of Cardiomyopathy Induced by Inappropriate Sinus Tachycardia: Efficacy of Ivabradine
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We report the case of a 16-year-old boy with cardiomyopathy induced by inappropriate sinus tachycardia (IST). The patient was resistant to treatment with conventional rate-decreasing medications. Therapy with the selective sinus node If current inhibitor ivabradine was started. After 3 months of ivabradine therapy, an improvement in ejection fraction and a successful decrease in heart rate were observed. No side effects occurred. We suggest that ivabradine, currently used to treat stable angina, could be considered as a second-line treatment in patients with symptomatic and refractory IST.
KeywordsInappropriate sinus tachycardia Ivabradine Tachycardiomyopathy
- 1.Blomstrom-Lundqvist C, Scheinman MM, Aliot EM, Alpert JS, Calkins H, Camm AJ et al (2003) CC/AHA/ESC guidelines for the management of patients with supraventricular arrhythmias―executive summary: a report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines and the European Society of Cardiology Committee for practice guidelines (writing committee to develop guidelines for the management of patients with supraventricular arrhythmias). Circulation 108:1871–1909Google Scholar
- 3.Fox K (2005) Future perspectives of If inhibition in various cardiac conditions. Eur Heart J 7(Suppl H):H33–H36Google Scholar