Does high-resolution activation mapping better estimate true isthmus size compared to entrainment mapping in postinfarction reentrant VT?
High-resolution activation mapping may provide more accurate isthmus sizing than entrainment mapping to better guide ablation therapy for postinfarction VT.
In postinfarction reentrant VT, conduction velocities are slowest at the proximal and distal curvatures. Entrainment mapping overestimates the true size of the isthmus. High-resolution activation mapping of VT may better guide ablation therapy.
Anter et al. (2016) studied this question.