Surface mapping demonstrates compatibility of implantable loop monitor with a continuous-flow left ventricular assist device.

Syncope in patients with continuous-flow left ventricular assist device may be associated with arrhythmia and difficult to determine without an implantable cardioverter defibrillator. We present a patient with continuous-flow left ventricular assist device, no implantable cardioverter defibrillator, and recurrent syncope. An implantable loop recorder was successfully implanted with surface mapping without noise interference.