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 nonsystemic 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 (GUCH).

中文翻译：

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Mustard修复术后患者心内超声心动图引导的无引线起搏器植入物

本病例报告描述了一名有 Mustard 修复史的 48 岁患者成功植入无引线起搏器（Micra VR Medtronic, Inc, Minneapolis, MN）。双腔起搏器植入 21 年后，两条常规导联都出现功能障碍。患者拒绝拔出导线，锁骨下静脉阻塞。选择了无引线起搏器作为替代方案。心内超声心动图允许将输送系统安全地引入非全身性左心室。植入后四个月，起搏参数稳定，患者没有新的不适。复杂成人先天性心脏病 (GUCH) 患者可考虑使用无引线起搏器。