Adaptive anti-tachycardia therapy apparatus and method
First Claim
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1. 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.
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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.
70 Citations
20 Claims
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1. A method for delivery of anti-tachycardia pacing (ATP) therapy by a cardiac rhythm management device, comprising:
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(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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A cardiac rhythm management device, comprising:
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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. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification