Leadless pacemaker implant guided by intracardiac echocardiography in a patient after Mustard repair.

This case report describes a successful leadless pacemaker implant (Micra VR Medtronic, Inc, Minneapolis, MN) in a 48-year-old patient with a history of Mustard repair. Twenty-one years after dual-chamber pacemaker implant, both conventional leads became dysfunctional. Lead extraction was refused by the patient and the subclavian vein was obstructed. A leadless pacemaker was selected as an alternative. Intracardiac echocardiography allowed the safe introduction of the delivery system into the non-systemic left ventricle. Four months after implant, the pacing parameters are stable and the patient is without new complaints. A leadless pacemaker could be considered in patients with complex grown-up congenital heart disease. This article is protected by copyright. All rights reserved.