Characteristics of Ventricular Tachycardia Ablation in Patients With Continuous Flow Left Ventricular Assist Devices
Population
34 patients with a Heart Mate II continuous flow left ventricular assist device who underwent ventricular…
Design
Cohort
Follow-up
25±15 months
Authors
Discussion
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Member takes
Implication
Scar-focused ablation may be considered in LVAD VT; hypothesis-generating and leaves open need for randomized confirmation.
Structured PICO
P
Population
34 patients (30 male, age 58±10 years) with a Heart Mate II continuous flow left ventricular assist device (LVAD) who underwent ventricular arrhythmia catheter ablation at 9 tertiary centers. Underlying cardiomyopathy was ischemic in 21 and nonischemic in 13, with mean LVEF 17%±5% before LVAD implantation.
I
Intervention
Ventricular arrhythmia catheter ablation (39 procedures targeting 110 VTs and 2 VF triggers)
O
Outcome
Ventricular arrhythmia characteristics, ablation targets (cannula vs intrinsic scar), and arrhythmia-free survival
Catheter ablation of VT in patients with continuous flow LVADs is feasible and safe, with intrinsic myocardial scar being the dominant arrhythmogenic substrate rather than the device cannula.
Cite This Study
Sacher et al. (2015) studied this question.