Pacesetter, Inc.

Sharon Standage

Gene A Bornzin

Cecilia Qin Xi

Heidi Hellman

Andrew W McGarvey

Anil Keni

Arndt Godau

Andrew Miller

Donald S Cogan

Richard A Block

Diana Gavales

David Bishop

Taryn Smith

Zachary Briggs

Kiersten Hathaway

Techniques are provided for use with an implantable cardiac stimulation device equipped with a multi-pole left ventricular (LV) lead and a right ventricular (RV) lead for identifying suitable pacing vectors. In one example, RV-LV delay times are measured while using different electrodes of the LV lead as cathodes for sensing. The LV electrode having the longest RV-LV delay time is identified and LV capture thresholds and diaphragmatic stimulation thresholds are measured for pacing vectors that employ that LV electrode as a cathode. Assuming at least one vector employing the selected LV electrode is found to have acceptable thresholds, the vector is selected for use in delivering pacing therapy with the selected LV electrode. If none of the pacing vectors employing the selected LV electrode has acceptable thresholds, another LV electrode is selected and the procedure is repeated. Examples with a multi-pole RV lead are also described.

Systems and methods for selecting pacing vectors based on site of latest activation for use with implantable cardiac rhythm management devices

An implantable cardiac stimulation device promotes intrinsic activity of a heart during demand pacing. The device increases the time and probability of an AV delay interval extension. The device may further increase the AV delay interval from a first extended AV delay interval to a longer second extended AV delay interval. The device may further encourage intrinsic AV conduction in patients with intact AV conduction by allowing multiple cycles during a search interval and multiple search times to further encourage intrinsic conduction from the atrium to the ventricle.

Implantable cardiac device providing intrinsic conduction encouragement and method

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Leona Valley, CA, United States of America

Sharon Standage