Patent ID: 7702390

Claim:
A method comprising: measuring a P wave width (ΔP base) during a patient base state; determining a patient base state PV delay (PV base) based on the P wave width (ΔP base) and a value of a parameter δ wherein the value of the parameter δ depends on the P wave width (ΔP base); measuring an atrio-ventricular delay (DD base) during the patient base state; measuring an atrio-ventricular delay (DD active) during a patient active state; determining a patient active state PV delay (PV active) based at least in part on the atrio-ventricular delay (DD base) and the atrio-ventricular delay (DD active) wherein the atrio-ventricular delays extend from the end of a respective P wave to the beginning of a respective ventricular QRS complex or a point within a respective ventricular QRS complex; and applying a pacing therapy that uses PV base or PV active.