A case of narrow complex bigeminy, what is the underlying rhythm?

Journal of Electrocardiology
Jesse K Fitzpatrick, Nora Goldschlager

Abstract

Narrow complex bigeminy is a common electrocardraphic finding that can be caused by second degree sinoatrial exit block or ectopic atrial bigeminy. These rhythms can be very challenging to distinguish on a 12-lead electrocardiogram. In this case of an elderly woman who presented with narrow complex bigeminy, we review the differentiating features of second degree sinoatrial exit block and ectopic atrial bigeminy.

Citations

Dec 15, 2020·JAMA Internal Medicine·Chakrapani MahabalaAshraf Malik

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