1. Ivabradine-sensitive incessant atrial tachycardia during pregnancy: a case report.
- Author
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Tonko, Johanna B, Douglas, Hannah, and Wright, Matthew J
- Subjects
PERIPARTUM cardiomyopathy ,TACHYCARDIA ,PREGNANCY ,VENTRICULAR tachycardia ,ARRHYTHMIA ,DRUGS - Abstract
Background Automaticity is the dominant mechanism in maternal focal atrial tachycardia (FAT) during pregnancy and if incessant, can cause tachycardia-induced cardiomyopathy. Medication failure for FATs is common, however, for the subgroup due to increased automaticity ivabradine sensitivity has been described and may represent a valuable treatment option. Little data are available regarding the safety profile of ivabradine during pregnancy. Case Summary We report the case of a 38-year-old woman with background of peripartum cardiomyopathy and incessant atrial tachycardia with deteriorating ventricular function during her second pregnancy unresponsive to betablockade and demonstrating the immediate successful rate-controlling effect of ivabradine. Discussion Early recognition of persistent maternal FAT is essential due to its frequent association with tachycardia-mediated cardiomyopathy. Our case report highlights the challenges of providing an equally safe and effective treatment of these notoriously difficult to treat arrhythmias during pregnancy. Ivabradine in combination with a betablocker can be effective for abnormal automaticity but its safety profile during pregnancy remains uncertain. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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