Lessons learned from catheter ablation of ventricular arrhythmias in patients with a fully magnetically levitated left ventricular assist device
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Key result
Catheter ablation of ventricular arrhythmias in patients with 3rd generation LVADs is feasible and safe, achieving acute procedural success in all 9 patients and freedom from recurrence in 4 patients.
Why the study?
Data on catheter ablation of ventricular arrhythmias in patients with LVADs are scarce, and existing evidence predominantly consists of case reports with outdated LVADs.
Does catheter ablation reduce ventricular arrhythmia recurrence in patients with 3rd generation LVADs?
Design
Prospective observational study
Authors
Discussion
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Implication
Should not change practice yet; extends limited evidence and warrants prospective trials.
Study Design
Type
Observational (n=9)
Multicenter
No
Structured PICO
Does catheter ablation reduce ventricular arrhythmia recurrence in patients with 3rd generation LVADs?
P
Population
9 male patients with advanced heart failure and a 3rd generation LVAD undergoing catheter ablation for drug-refractory ventricular arrhythmias.
I
Intervention
Catheter ablation of ventricular arrhythmias (endocardial and/or epicardial) using 3D electroanatomical mapping and radiofrequency current (maximum power 40 W, maximum temperature 43 °C, flow rate 30 mL/min).
O
Outcome
Acute procedural success, freedom from ventricular arrhythmia recurrence, and procedure-related complications
Catheter ablation of ventricular arrhythmias in patients with 3rd generation LVADs is feasible, safe, and effectively reduces arrhythmia burden, with most substrates unrelated to the LVAD cannulation site.
Limitations
- Small sample size of only nine patients
- Single-center observational design
- Results may not be generalizable to the entire LVAD collective
Cite This Study
Bergau et al. (2021) conducted an observational in Ventricular arrhythmias in patients with 3rd generation LVADs (n=9). Catheter ablation was evaluated on Acute procedural success. Catheter ablation of ventricular arrhythmias in patients with 3rd generation LVADs is feasible and safe, achieving acute procedural success in all 9 patients and freedom from recurrence in 4 patients.
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