Arrhythmias & electrophysiology
Preprocedural imaging with cardiac computed tomography for endo-epicardial ventricular tachycardia ablation
Authors' conclusion
A CCT-based preprocedural assessment before VT ablation is feasible, showing high diagnostic concordance with EAM in detecting myocardial fibrosis.
Study context
- Population
- Patients undergoing endo-epicardial ventricular tachycardia (VT) catheter ablation, November 2017 to December 2021
- Participants
- 35 patients
- Exposure
- Cardiac computed tomography (CCT) vs electroanatomic mapping (EAM)
- Outcome
- Concordance between CCT and EAM for evaluation of cardiac fibrosis
Main finding
As reported in the abstract
Agreement between CCT and EAM for myocardial fibrosis
Overall agreement (Cohen κ)
0.933
Per-segment agreement (κ range)
0.796 to 1.0
Ischemic patients (κ)
1.000
Myocarditis (κ)
0.750
Observational data: associations, not effects.
Further findings
Freedom from VT recurrences · median follow-up 14 (12-24) months
- 1-year freedom from recurrences
- 74.3%
- Overall freedom from recurrences
- 60.0%
Original publication
Preprocedural imaging with cardiac computed tomography for endo-epicardial ventricular tachycardia ablation. Heart Rhythm. Published 20 June 2024. doi:10.
Summarised from the published abstract; every number is checked against it