Patent ID: 9132274
Filing Date: 2015-09-15
Classification: A61B,A61N

Abstract:
1. A method for selecting an implant site for a pacing lead comprising: a) determining a baseline rhythm using a plurality of body-surface electrodes, the baseline rhythm includes an atrial marker and a ventricular marker (Vs); b) defining a pre-specified window between the atrial marker and the ventricular marker; c) applying a low pass filter to a signal within the window; d) determining a rectified slope of the signal; e) determining a time point (t1) in which the rectified slope exceeds 10% of a maximum value of the rectified slope; f) determining a point of onset of a depolarization complex in the signal, wherein the point of onset occurs at a largest curvature in the signal within the pre-specified window from Vs-100 ms to t1; g) determine an electromechanical delay for each of a plurality of candidate cardiac pacing lead sites using the determined point of onset of the depolarization complex; and h) select the implant site for the pacing lead for delivering cardiac pacing based upon the determined electromechanical delays.