Nanostim leadless pacemaker retrieval and simultaneous micra leadless pacemaker replacement: a single-center...

Area of Science:

• Cardiology
• Medical Devices
• Electrophysiology

Background:

• Leadless pacemakers (LPs) offer an alternative to traditional pacemakers, avoiding generator pockets and lead-related issues.
• Limited data exists on the extraction of older LP models and simultaneous implantation of newer ones.

Purpose of the Study:

• To evaluate the outcomes of Nanostim LP retrieval and simultaneous Micra LP reimplantation.
• To assess the feasibility and safety of replacing an existing LP with a newer leadless device.

Main Methods:

• A retrospective study of patients who underwent Nanostim LP retrieval and Micra LP implantation between 2016-2018.
• Data collection from electronic medical records, focusing on procedural success and patient outcomes.

Main Results:

• Nine patients had Nanostim LP retrieval attempted; 6 underwent simultaneous Micra LP reimplantation.
• Successful retrieval rate was 89%, with all reimplantations being successful and without major complications.
• Newly implanted Micra LPs functioned normally post-procedure; implant duration and positioning influenced extraction ease.

Conclusions:

• Simultaneous retrieval of Nanostim LP and reimplantation with Micra LP is a viable strategy.
• This approach appears safe and effective for patients requiring leadless pacemaker replacement.