Key result
Surgical occluder removal restores sinus rhythm in late-onset CAVB after transcatheter VSD closure.
Why the study?
Late-onset complete atrioventricular block is a serious complication after transcatheter closure of perimembranous ventricular septal defect, and its management remains challenging.
Case Report (n=1)
No
Highlights the serious complication of late-onset complete AV block after transcatheter closure of perimembranous VSDs, emphasizing the need for stringent procedural indications.
Answers are grounded in this paper and cite their sources.
Late-onset CAVB warrants extended surveillance after pmVSD closure; leaves open long-term safety in Level 5 observational data.
Long-term late-onset complete atrioventricular block (CAVB) is one of the most serious complications of transcatheter closure of perimembranous ventricular septal defect (pmVSD); it can cause an Adams-Stoke attack or even sudden death. Transcatheter closure of pmVSD is not approved by the FDA, yet the procedure has proved to be a successful alternative to a surgical strategy in China. Although transcatheter closure of pmVSD is widely and successfully performed, especially in China, late-onset CAVB is still difficult to avoid. Here, we report a case with late-onset CAVB post transcatheter closure that was successfully treated. By doing so, we reassess the safety of pmVSD occluder closure and highlight that use of this procedure should adhere to more stringent indications.
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Xie et al. (2020) conducted a case report in Late-onset complete atrioventricular block post transcatheter closure of perimembranous ventricular septal defect (n=1). Surgical removal of the occluder and repair of pmVSD was evaluated on Recovery of sinus rhythm. Surgical removal of the occluder successfully restored sinus rhythm in a patient who developed late-onset complete atrioventricular block 2.5 years after transcatheter closure of a perimembranous ventricular septal defect.
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