Substrate mapping for scar-related ventricular tachycardia in patients with resynchronization therapy —the importance of the pacing mode

ConclusionThe sequence of ventricular activation, as determined by the pacing site in patients with CRT devices, has a major influence on the detection of late potentials during substrate-guided ablation. Further study is warranted to define the optimal approaches, including the rhythm, for substrate mapping, but our findings suggest that BiV pacing may be most likely to obscure detection of late potentials as compared to single-site pacing.
Source: Journal of Interventional Cardiac Electrophysiology - Category: Cardiology Source Type: research