Patent ID: 8010194

Claim:
A method comprising: delivering a pace using an electrode positioned on the lateral wall of the left ventricle of a heart; sensing the pace using an electrode positioned in the right ventricle of the heart; determining a left to right directional conduction time (T LR ); delivering a pace using an electrode positioned in the right ventricle of the heart; sensing the pace using an electrode positioned on the lateral wall of the left ventricle of the heart; determining a right to left directional conduction time (T RL ); calculating a site-to-site offset (VV ATP ) for multi-site anti-tachycardia pacing based on the left to right directional conduction time and the right to left directional conduction time; and instructing an implantable device to deliver multi-site anti-tachycardia pacing using the site-to-site offset (VV ATP ).