Arrhythmia Burden From Implantable Device Interrogation During Long-Term Follow-Up In Lvad Patients
JOURNAL OF HEART AND LUNG TRANSPLANTATION(2021)
摘要
Purpose The burden of atrial arrhythmias (AA) and ventricular tachycardia/fibrillation (VT/VF) during long-term continuous-flow (CF) LVAD support is not well described. Methods Our Arrhythmia Database included all implantable cardioverter-defibrillator interrogations completed from September 2015 to August 2019 for 101 consecutive CF-LVAD patients at a single center. Endpoints included first occurrence of any arrhythmia, AA, and VT/VF. Results Patients (mean age at LVAD implant 59±12 years, 83% male, 51% with ischemic cardiomyopathy, 60% with history of AA before LVAD implant, and 75% with history of VT/VF before LVAD implant) were supported by an LVAD for a median of 2.1 years before entering the Arrhythmia Database. Subsequent follow-up in the Database extended over \u003e2 years. At 2.5 years from Arrhythmia Database entry (median of 4.5 years from LVAD implant), the cumulative rate of any arrhythmia was 74%, the rate of AA was 66%, and the rate of VT/VF was 47% (Figure). Conclusion Both atrial and ventricular arrhythmias remain common during long-term LVAD support (median \u003e4 years). Our findings support the role of generator replacement of implantable devices for continued detection and treatment of arrhythmic events in LVAD patients.
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关键词
lvad patients,implantable device interrogation,long-term
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