Adapative anti-tachycardia therapy apparatus and method
AssigneeCardiac Pacemakers, Inc.
InventorsWeimin Sun, Bruce H. KenKnight, Martin Tze, Yatheendhar Manicka
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Abstract
A method and apparatus for delivering anti-tachycardia pacing in an adaptive manner is disclosed. A cardiac rhythm management device, such as an implantable pacemaker, having anti-tachycardia pacing capability delivers anti-tachycardia pacing therapy in accordance with a selected pacing protocol upon detection of a terminable arrhythmia. The protocol is selected from a library of available protocols. A record of the successes and failures of each available protocol in converting tachyarrhythmias is maintained in a result table for use in selecting the protocol.
Claims20
A method for delivery of anti-tachycardia pacing (ATP) therapy by a cardiac rhythm management device, comprising:
- (a) monitoring cardiac electrical activity in order to detect an arrhythmia;
- (b) upon detection of a terminable arrhythmia, selecting a pacing protocol for delivering ATP therapy from a list of possible protocols in accordance with a success/failure probability parameter associated with each protocol in the list;
- (c) delivering ATP therapy in accordance with the selected protocol;
- (d) updating the success/failure ratio parameter associated with the selected protocol in accordance with the success or failure of the protocol in terminating the arrhythmia;
- and,
- (e) repeating step (b) if the protocol was unsuccessful in terminating the arrhythmia.
A cardiac rhythm management device, comprising:
- a sensing and pacing channel for sensing cardiac electrical activity and delivering pacing pulses;
- a shock pulse generator for delivering a defibrillation shock;
- a control unit for detecting a terminable arrhythmia and delivering ATP therapy;
- and,
- wherein the control unit is programmed to:
- (a) upon detection of a terminable arrhythmia, select a pacing protocol for delivering ATP therapy from a list of possible protocols in accordance with a success/failure probability parameter associated with each protocol in the list;
- (b) deliver ATP therapy in accordance with the selected protocol;
- (c) update the success/failure ratio parameter associated with the selected protocol in accordance with the success or failure of the protocol in terminating the arrhythmia;
- and,
- (d) repeat step (a) if the protocol was unsuccessful in terminating the arrhythmia.
Dependencies are inferred from the claim text.