Connie J Wright

US Patent:

8175707, May 8, 2012

Filed:

Dec 6, 2007

Appl. No.:

11/951928

Inventors:

Connie Wright - San Diego CA, US
Xiaoyi Min - Thousand Oaks CA, US
Euljoon Park - Valencia CA, US
Scott Simon - Billings MT, US

Assignee:

Pacesetter, Inc. - Sylmar CA

International Classification:

A61N 1/365

US Classification:

607 18, 607 9

Abstract:

An exemplary method includes delivering a cardiac resynchronization therapy using an atrio-ventricular delay and an interventricular delay, monitoring patient activity, optimizing the atrio-ventricular delay and the interventricular delay for a plurality of patient activity states to generate a plurality of optimal atrio-ventricular delays and a plurality of optimal interventricular delays, storing the optimal atrio-ventricular delays and the optimal interventricular delays in association with corresponding patient activity states, detecting a change in patient activity, adjusting an atrial pacing rate in response to the detected change in patient activity based at least in part on a heart failure status and setting the atrio-ventricular delay and the interventricular delay, in response to the detected change in patient activity, using a stored optimal atrio-ventricular delay that corresponds to the patient activity and a stored optimal interventricular delay that corresponds to the patient activity. Other exemplary technologies are also disclosed.