Systems and methods for leadless pacing and shock therapy

摘要

Techniques and systems for monitoring cardiac arrhythmias and delivering electrical stimulation therapy using a subcutaneous implantable cardioverter defibrillator (SICD) and a leadless pacing device (LPD) are described. For example, the SICD may detect a tachyarrhythmia within a first electrical signal from a heart and determine, based on the tachyarrhythmia, to deliver anti-tachyarrhythmia shock therapy to the patient to treat the detected arrhythmia. The LPD may receive communication from the SICD requesting the LPD deliver anti-tachycardia pacing to the heart and determine, based on a second electrical signal from the heart sensed by the LPD, whether to deliver anti-tachycardia pacing (ATP) to the heart. In this manner, the SICD and LPD may communicate to coordinate ATP and/or cardioversion/defibrillation therapy. In another example, the LPD may be configured to deliver post-shock pacing after detecting delivery of anti-tachyarrhythmia shock therapy.

主权项

1. A leadless pacing device (LPD) comprising:
a housing; a set of two or more electrodes carried on the housing and configured to sense electrical signals of the heart; a processor within the housing and configured to receive an indication of a detected tachyarrhythmia; a shock detector within the housing and configured to detect delivery of anti-tachyarrhythmia shock therapy, wherein the processor activates the shock detector in response to receiving the indication of the detected tachyarrhythmia; and a signal generator within the housing and configured to generate and deliver, in response to the detection of the delivery of anti-tachyarrhythmia shock therapy, post-shock pacing therapy to the heart of the patient via at least a subset of the set of electrodes.