Systems and methods for ranking and selection of pacing vectors
First Claim
1. A method of operating a cardiac device to rank potential Left Ventricular (LV) cardiac pacing vectors, comprising:
- measuring one or more parameter values indicative of pacing viability for a plurality of cathode electrodes of a cardiac chamber;
identifying each of the plurality of cathode electrodes as a viable cathode electrode or an eliminated cathode electrode based on the one or more measured parameter values for that particular cathode electrode, wherein the viable cathode electrodes are subject to further testing and the eliminated cathode electrodes are eliminated from further testing;
after identifying the viable cathode electrodes for the cardiac chamber;
measuring a value of a parameter indicating hemodynamic function of pacing for at least some of the viable cathode electrodes; and
measuring one or both of a cardiac capture threshold and a phrenic nerve activation threshold for potential LV pacing vectors of the cardiac chamber, each potential LV pacing vector defined between a viable cathode electrode and an anode electrode;
ranking the potential LV pacing vectors based on the measured hemodynamic function parameter value and the one or both measured thresholds; and
generating an output of the cardiac device indicating the ranking.
1 Assignment
0 Petitions
Accused Products
Abstract
Approaches to rank potential left ventricular (LV) pacing vectors are described. Early elimination tests are performed to determine the viability of LV cathode electrodes. Some LV cathodes are eliminated from further testing based on the early elimination tests. LV cathodes identified as viable cathodes are tested further. Viable LV cathode electrodes are tested for hemodynamic efficacy. Cardiac capture and phrenic nerve activation thresholds are then measured for potential LV pacing vectors comprising a viable LV cathode electrode and an anode electrode. The potential LV pacing vectors are ranked based on one or more of the hemodynamic efficacy of the LV cathodes, the cardiac capture thresholds, and the phrenic nerve activation thresholds.
-
Citations
21 Claims
-
1. A method of operating a cardiac device to rank potential Left Ventricular (LV) cardiac pacing vectors, comprising:
-
measuring one or more parameter values indicative of pacing viability for a plurality of cathode electrodes of a cardiac chamber; identifying each of the plurality of cathode electrodes as a viable cathode electrode or an eliminated cathode electrode based on the one or more measured parameter values for that particular cathode electrode, wherein the viable cathode electrodes are subject to further testing and the eliminated cathode electrodes are eliminated from further testing; after identifying the viable cathode electrodes for the cardiac chamber; measuring a value of a parameter indicating hemodynamic function of pacing for at least some of the viable cathode electrodes; and measuring one or both of a cardiac capture threshold and a phrenic nerve activation threshold for potential LV pacing vectors of the cardiac chamber, each potential LV pacing vector defined between a viable cathode electrode and an anode electrode; ranking the potential LV pacing vectors based on the measured hemodynamic function parameter value and the one or both measured thresholds; and generating an output of the cardiac device indicating the ranking. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. A cardiac device for ranking potential Left Ventricular (LV) pacing vectors, comprising:
-
a plurality of cathode electrodes electrically coupled to a heart; a cathode viability module configured to measure one or more parameter values for a plurality of cathode electrodes of a cardiac chamber and to identify each of the plurality of cathode electrodes as a viable cathode electrode or an eliminated cathode electrode based on the one or more measured parameter values for that particular cathode electrode, the viable cathode electrodes subject to further testing and the eliminated cathode electrodes eliminated from further testing; a hemodynamic function module configured to measure a parameter value indicative of hemodynamic function for at least some of the viable cathode electrodes; a threshold test module configured to measure one or both of a cardiac capture threshold and a phrenic nerve activation threshold for potential LV pacing vectors of the cardiac chamber, each potential LV pacing vector defined between a viable cathode electrode and an anode electrode; a ranking module configured to rank at least some of the potential LV pacing vectors based on the value of the hemodynamic function parameter and the one or both of the measured capture threshold and the phrenic nerve activation threshold, and the ranking module further configured to provide an output based on the ranking. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
-
Specification