Transcatheter occlusion of a left ventricular outflow tract pseudoaneurysm with Penumbra Embolisation Coils

Area of Science:

• Cardiovascular Medicine
• Interventional Cardiology
• Pediatric Cardiac Surgery

Background:

• Left ventricular outflow tract pseudoaneurysms are rare, high-risk complications following cardiac surgery, myocardial infarction, or endocarditis.
• These pseudoaneurysms pose significant risks and require effective management strategies.

Purpose of the Study:

• To report the first successful transcatheter occlusion of a left ventricular outflow tract pseudoaneurysm.
• To evaluate the safety and efficacy of using Penumbra bare metal detachable coils for this indication.

Main Methods:

• Transcatheter occlusion procedure utilizing Penumbra bare metal detachable coils.
• The procedure was performed on a 12-year-old patient post-Ross-Konno procedure.
• Assessment of occlusion, coronary compromise, and complications.

Main Results:

• Complete occlusion of the left ventricular outflow tract pseudoaneurysm was achieved with seven coils.
• No coronary compromise or procedural complications were observed.
• No recanalisation was noted at the 12-month follow-up.

Conclusions:

• Transcatheter occlusion with Penumbra bare metal detachable coils is a safe and effective treatment for left ventricular outflow tract pseudoaneurysms.
• This technique offers a viable alternative for managing these rare but serious cardiac complications, particularly in pediatric patients.