Identification of electro-mechanical dysynchrony with a non-cardiac resynchronization therapeutic device

摘要

An implantable cardiac therapy device and methods of using a device including an implantable stimulation pulse generator, one or more implantable leads defining sensing and stimulation circuits adapted to sense and deliver therapy in at least one right side heart chamber, and an implantable controller in communication with the stimulation pulse generator and the one or more patient leads so as to receive sensed signals indicative of a patient's physiologic activity and deliver indicated therapy. The controller is adapted to monitor at least one indicator of cardiac dysynchrony and to compare the at least one indicator to a determined dysynchrony threshold. The threshold is determined for indications that the patient be further evaluated for cardiac resynchronization therapy. The controller is further adapted to set an alert when the at least one indicator exceeds the threshold to indicate to a clinician that evaluation for bi-ventricular pacing might be indicated.

主权项

1. An implantable cardiac therapy device comprising:
an implantable stimulation pulse generator; one or more implantable leads defining sensing and stimulation circuits adapted to sense and deliver therapy in at least one right side heart chamber; and an implantable controller in communication with the stimulation pulse generator and the one or more leads so as to receive sensed signals indicative of a patient's physiologic activity, the controller being adapted to evaluate the patient's physiologic activity as indicated by the received sensed signals and to induce the stimulation pulse generator to deliver therapeutic stimulation via the one or more leads and wherein the controller is further adapted to monitor at least one indicator of electro-mechanical cardiac dysynchrony and to compare the at least one indicator to a determined electro-mechanical dysynchrony threshold wherein the threshold is determined for indications that the patient be further evaluated for cardiac resynchronization therapy and wherein the controller is further adapted to set an alert when the at least one indicator exceeds the threshold; wherein the one or more implantable leads are adapted to deliver pacing therapy to the right ventricle and wherein the controller monitors a frequency of right ventricle pacing therapy delivery and wherein the controller evaluates dysynchrony at least partially as a function of the frequency of right ventricle pacing therapy delivery.