Resolution of late-onset bigeminy following percutaneous transcatheter balloon valvuloplasty of the aortic valve stenosis in paediatric.

A four-month-old infant with severe congenital aortic stenosis underwent successful percutaneous transcatheter balloon valvuloplasty. While initially stable, ventricular bigeminy was detected at six-week follow-up, likely due to post-procedural myocardial inflammation. The arrhythmia resolved spontaneously by 12 weeks. This case highlights the need for vigilant post-percutaneous transcatheter balloon valvuloplasty monitoring to detect and manage late-onset arrhythmic complications.