Patent ID: 7123960

Claim:
A method for setting an optimal atrio-ventricular delay (AVD) interval used for delivering cardiac resynchronization therapy, comprising: measuring the interval from a right atrial sense or pace to a left atrial sense, designated as the RA-LA interval; computing an optimal value of the AVD interval for delivering a ventricular pace following an atrial event in an atrial tracking or AV sequential pacing mode as a linear function of the measured RA-LA interval associating the computed optimal AVD interval value with an atrial rate corresponding to the measured atrial rate which was present when the RA-LA interval was measured; storing the optimal AVD interval value and its associated atrial rate in a table; and, varying the AVD interval as the atrial rate changes by determining a present atrial rate and setting the AVD interval to the optimum value stored in the table which is associated with the present atrial rate.