Benign cardiac tumours, malignant arrhythmias

Area of Science:

• Pediatric Cardiology
• Cardiac Electrophysiology
• Pediatric Oncology

Background:

• Pediatric cardiac tumors (PCTs) are rare but can present with significant complications.
• Ventricular arrhythmias are a serious, though uncommon, manifestation of PCTs.

Observation:

• This report details four pediatric cases of cardiac tumors associated with ventricular arrhythmias.
• Two children experienced sudden cardiac death due to their tumors.
• One patient required an implantable cardioverter defibrillator, and another had persistent arrhythmias.

Findings:

• Malignant arrhythmias can complicate the management of PCTs, even those considered benign.
• The arrhythmogenic potential of PCTs is not fully understood.
• There is a notable lack of prognostic information for children with PCTs and arrhythmias.

Implications:

• Early recognition and management of arrhythmias in PCT patients are crucial.
• Further research is needed to improve prognostic accuracy for this patient group.
• The role of devices like implantable cardioverter defibrillators in managing PCT-associated arrhythmias warrants further investigation.