Efficacy of ivabradine in four patients with inappropriate sinus tachycardia: a three month-long experience based on electrocardiographic, Holter monitoring, exercise tolerance and quality of life assessments.

Abstract

IST causes an elevated HR and its control is the treatment objective. If future data confirm our results, ivabradine could be used for this purpose. More information is necessary in order to define its role: initial option, second step (beta-blockers non-responders or intolerants) or combined (refractory cases).