Key result
Post-TAVR junctional ectopic tachycardia and transient complete AV block resolved with medical therapy and permanent pacing.
Why the study?
Although accelerated junctional rhythm with potential risk of AV block has been reported following TAVR, no cases of junctional ectopic tachycardia following TAVR have been documented.
Case Report (n=1)
This case demonstrates that junctional ectopic tachycardia can occur after TAVR and may progress to complete atrioventricular block, highlighting the need for careful electrocardiographic monitoring and potential permanent pacemaker implantation.
JET post-TAVR may progress to AV block needing pacing; extends sparse reports but leaves open incidence and risk stratification.
Junctional ectopic tachycardia (JET), a tachyarrhythmia originating from the atrioventricular (AV) node and/or bundle of His, is commonly observed in pediatric patients following congenital heart surgery. JET is characterized by a heart rate above the 95th percentile for age, whereas rates below this threshold are referred to as accelerated junctional rhythm (AJR). Although AJR with a potential risk of developing AV block has been reported following transcatheter aortic valve replacement (TAVR), no cases of JET following TAVR have been documented. We report a case of JET and complete AV block observed after TAVR, which was effectively managed with medication and permanent pacemaker implantation.
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Yoshimura et al. (2025) conducted a case report in Severe aortic stenosis (n=1). Transcatheter Aortic Valve Replacement was evaluated on Occurrence and management of junctional ectopic tachycardia and complete AV block. Transcatheter aortic valve replacement was complicated by the development of junctional ectopic tachycardia and subsequent transient complete AV block, which was effectively managed with medication and a permanent pacemaker.
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