Cardiac monitoring and/or stimulation methods and systems that provide one or more of monitoring, diagnosing, defibrillation, and pacing. Cardiac signal separation is employed to detect, monitor, track, and/or trend closed-loop cardiac resynchronization therapy using cardiac activation sequence information....http://www.google.se/patents/US7457664?utm_source=gb-gplus-sharePatent US7457664 - Closed loop cardiac resynchronization therapy using cardiac activation sequence information
