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Percutaneous extraction of a leadless Micra pacemaker after dislocation: a case report
Stephanie Fichtner1, Heidi L Estner1, Michael Näbauer1
1Department of Medicine I, University Hospital Munich, Ludwig-Maximilians University Munich, Marchioninistr. 15, Munich, Germany.
European Heart Journal. Case Reports
|August 20, 2019
Summary
Leadless pacemaker dislocations are rare but can occur. This case demonstrates a challenging but successful extraction of a dislodged leadless pacemaker using specialized retrieval tools.
Area of Science:
- Cardiology
- Medical Device Technology
Background:
- Leadless pacemaker implantation is increasing globally.
- Complications like leadless pacemaker dislocation and extraction are infrequently documented.
Purpose of the Study:
- To report a rare case of leadless pacemaker dislocation.
- To describe the successful extraction of a dislodged leadless pacemaker.
Main Methods:
- A patient with cardiac amyloidosis received a leadless pacemaker (Micra).
- Device dislocation was diagnosed via echocardiography and CT scan.
- Extraction was performed using steerable introducers and snare catheters.
Main Results:
- The leadless pacemaker dislocated post-implantation, causing intermittent ventricular tachycardia.
- Device repositioning occurred multiple times within the right ventricle.
- Successful extraction was achieved after a prolonged procedure time of 189 minutes.
Conclusions:
- While leadless pacemakers offer safe implantation, rare dislocations can happen.
- Device extraction is feasible but technically demanding, as illustrated by this case.
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