Optimal atrioventricular delay in CRT patients can be approximated using surface electrocardiography and device electrograms.

Unlabelled: Electrocardiographic AV Delay Adjustment.

Background: Optimization of the atrioventricular (AV) delay (AVD) may result in an improvement in cardiac resynchronization therapy (CRT) outcome. Previous studies have shown positive correlation between interatrial conduction time measured invasively during the implant procedure and optimal AVD determined postimplant using Doppler echocardiography.