Atrioventricular block after transcatheter closure of perimembranous ventricular septal defects
M A Walsh1, J Bialkowski, M Szkutnik
1Cardiac Department, Our Lady's Hospital for Sick Children, Crumlin, Dublin 8, Ireland.
Objective:
To look at the presentation, treatment and outcome of patients who developed atrioventricular block after transcatheter closure of a perimembranous ventricular septal defect (PMVSD) with the Amplatzer PMVSD device.
Setting:
Three tertiary referral centres for paediatric cardiology in two countries.
Results:
All three patients presented within 10 days of the procedure. All three patients were treated with intravenous steroids. A permanent pacemaker was inserted in all patients but no pacemaker required activation after two months.
Conclusion:
Complete atrioventricular block occurring in the weeks after device occlusion of a PMVSD appears to resolve quickly. Continued involvement in multicentre device databases is required to monitor safety.
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