Method and apparatus for closed-loop control of anti-tachyarrhythmia pacing using hemodynamic sensor
AssigneeCardiac Pacemakers, Inc.
InventorsDan Li, Cheng Zhang
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Abstract
A cardiac rhythm management (CRM) system includes an implantable medical device that delivers anti-tachyarrhythmia therapies including anti-tachyarrhythmia pacing (ATP) and a hemodynamic sensor that senses a hemodynamic signal. The implantable medical device includes a hemodynamic sensor-controlled closed-loop ATP system that uses the hemodynamic signal for ATP capture verification. When ATP pulses are delivered according to a selected ATP protocol to terminate a tachyarrhythmia episode, the implantable medical device performs the ATP capture verification by detecting an effective cardiac contraction from the hemodynamic signal. The ATP protocol is adjusted using an outcome of the ATP capture verification.
Claims20
A method for anti-tachyarrhythmia pacing (ATP), the method comprising:
- sensing a hemodynamic signal;
- detecting a predetermined type tachyarrhythmia episode;
- delivering ATP pulses according to an ATP protocol in response to the detection of the predetermined type tachyarrhythmia episode;
- and
- performing an ATP capture verification during the delivery of the ATP pulses by detecting an effective cardiac contraction using the hemodynamic signal, the effective cardiac contraction indicated by a detectable event in the hemodynamic signal.
A method for anti-tachyarrhythmia pacing (ATP), the method comprising:
- receiving a pulmonary artery pressure (PAP) signal;
- detecting a tachyarrhythmia episode;
- delivering ATP pulses from an implantable medical device according to an ATP protocol in response to the detection of the tachyarrhythmia episode;
- and
- performing an ATP capture verification during the delivery of the ATP pulses by detecting an effective cardiac contraction using the PAP signal.
Dependencies are inferred from the claim text.