Interventional electrophysiology in children: a single-center experience

Area of Science:

• Pediatric Cardiology
• Electrophysiology
• Cardiac Arrhythmia Management

Background:

• Cardiac arrhythmia ablation techniques in children have advanced, but pediatric procedures remain less common than adult procedures.
• Limited data exists on the success rates and complication profiles of pediatric ablations.

Purpose of the Study:

• To evaluate the efficacy and safety of catheter ablation for cardiac arrhythmias in pediatric patients.
• To compare pediatric ablation outcomes with existing adult data.

Main Methods:

• A retrospective study of 125 catheter ablations performed on 112 pediatric patients between March 2005 and February 2011.
• Success was defined as the abolition of the arrhythmia source post-procedure.
• Recurrence was categorized as early (before discharge) or late (after discharge).

Main Results:

• Overall procedural success rate was 94.4% (118/125), with significantly higher success in atrioventricular nodal reentry tachycardia (AVNRT).
• Recurrence occurred in 6.7% (7/105) of patients, inversely related to body size (P<0.05).
• No mortality was observed; 5 complications occurred but were fully resolved.

Conclusions:

• Catheter ablation is an effective and low-risk treatment for pediatric cardiac arrhythmias.
• Recurrence and complication rates in children are similar to those reported in adults.
• Pediatric patients with significant arrhythmias should be considered for ablation rather than prolonged toxic drug therapy.