Catheter ablation of left atrial tachycardia adjacent to a septal closure device: A multifaceted challenge?

Area of Science:

• Cardiology
• Electrophysiology
• Medical Devices

Background:

• Catheter ablation (CA) for left atrial tachycardia (LAT) adjacent to septal closure devices presents unique challenges.
• Percutaneous closure of atrial septal defects (ASDs) is a common procedure, but associated arrhythmias require careful management.

Observation:

• A case study of a 57-year-old patient with a history of percutaneous ASD closure is presented.
• The patient underwent successful CA of LAT located near the implanted septal device.

Findings:

• A transaortic approach utilizing radiofrequency (RF) energy was employed for the ablation.
• Technical difficulties and potential interference between the RF energy and the septal device were noted as significant considerations.

Implications:

• This case highlights the feasibility of CA in challenging anatomies but underscores the need for further investigation.
• Future research should focus on evaluating the safety, efficacy, and optimal energy parameters for ablating arrhythmias near septal closure devices.