A case report of paroxysmal complete atrioventricular block in a patient with dextrocardia and repaired tetralogy of Fallot.

ABSTRACT:

Background

Some adults suffer sudden cardiac death after previous surgical repair of tetralogy of Fallot (TOF), and in such cases, ventricular tachycardia is believed to be the most frequent cause of death. However, we report a case of cardiac arrest due to paroxysmal complete atrioventricular block in an adult with dextrocardia and repaired TOF.

Case summary

A 49-year-old woman with dextrocardia and a history of surgical treatment for TOF lost consciousness three times. A previously implanted loop recorder showed a 60-second cardiac arrest, and complete atrioventricular block was diagnosed. An electrophysiological study showed prolongation of the His-ventricular interval but no ventricular tachycardia. A dual chamber pacemaker was implanted, and there has been no recurrence

SUBMITTER: Fujita T 

PROVIDER: S-EPMC9671030 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature