Arrhythmias & electrophysiology
Outcomes of ventricular tachycardia ablation facilitated by pre-procedural cardiac imaging-derived scar characterization: a prospective multi-centre international registry
Authors' conclusion
In a large multi-centre prospective cohort, VT ablation facilitated by pre-procedural imaging is associated with favourable long-term outcomes.
Study context
- Population
- Consecutive patients referred for scar-related left-sided ventricular tachycardia (VT) ablation (71% ischaemic cardiomyopathy)
- Participants
- 171 patients
- Exposure
- Image-guided vs image-aided VT ablation
- Outcome
- Overall survival and VT recurrence-free survival
- Follow-up
- Mean 18 ± 19 months
Methodological detailsinternational, 5 European tertiary hospitals, consecutive patients
- International
- 5 European tertiary hospitals
- Consecutive patients
Main finding
As reported in the abstract
mean follow-up 18 ± 19 months
Overall survival
91%
VT recurrence-free survival
74.4%
Observational data: associations, not effects.
Further findings
Long-term ablation outcomes by cardiomyopathy type and imaging modality
- No significant difference by type of cardiomyopathy
- P = 0.88
- No significant difference by pre-procedural imaging modality
- P = 0.33
Image-guided approach
- Image-guided approach feasible, safe and faster, with reduced procedure, radiofrequency and fluoroscopy times, without compromising efficacy
Imaging integrated
- Cardiac magnetic resonance (CMR) integrated
- 159 (93%)
- Multi-detector computed tomography (MDCT) integrated
- 113 (66%)
- Both
- 101 (59%)
Safety
- Procedure-related complications
- 9 (5%)
Original publication
Outcomes of ventricular tachycardia ablation facilitated by pre-procedural cardiac imaging-derived scar characterization: a prospective multi-centre international registry. Europace. Published 14 March 2025. doi:10.
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