초록 ▼

A system including at least one implantable sensor circuit adapted to produce an electrical sensor signal related to one or more physiologic cardiovascular events of a subject, a therapy circuit configured to provide anti-tachycardia pacing (ATP) therapy, and a controller. The controller includes a

A system including at least one implantable sensor circuit adapted to produce an electrical sensor signal related to one or more physiologic cardiovascular events of a subject, a therapy circuit configured to provide anti-tachycardia pacing (ATP) therapy, and a controller. The controller includes a tachyarrhythmia detection circuit and an efficacy circuit. The tachyarrhythmia detection circuit is configured to detect a tachyarrhythmia episode in the subject using the electrical sensor signal, and to determine whether the tachyarrhythmia episode is of a type that is treatable with ATP. The efficacy circuit is configured to estimate an efficacy of a currently configured ATP therapy for the subject, and the controller is configured to alter a delivery regimen of the currently configured ATP therapy when the estimated ATP therapy efficacy is deemed insufficient. Other systems and methods are described.

대표청구항 ▼

What is claimed is: 1. A system comprising:a first device including:at least one implantable sensor circuit configured to produce an electrical sensor signal related to one or more physiologic cardiovascular events of a subject;a therapy circuit configured to provide anti-tachycardia pacing (ATP) th

What is claimed is: 1. A system comprising:a first device including:at least one implantable sensor circuit configured to produce an electrical sensor signal related to one or more physiologic cardiovascular events of a subject;a therapy circuit configured to provide anti-tachycardia pacing (ATP) therapy anda controller, communicatively coupled to the sensor circuit and the therapy circuit, the controller including:a tachyarrhythmia detection circuit configured to detect a tachyarrhythmia episode in the subject using the electrical sensor signal, and to determine whether the tachyarrhythmia episode is of a type that is treatable with ATP; andan efficacy circuit configured to, before beginning delivery of a currently configured ATP therapy in response to the detected tachyarrhythmia episode, estimate a cumulative subject-specific currently-configured ATP therapy efficacy, and wherein the controller is configured to: compare the cumulative subject-specific efficacy to a physiological condition specific efficacy threshold determined using a patient population; and alter the delivery regimen of the ATP therapy when the cumulative subject-specific efficacy is less than the physiological condition-specific efficacy threshold.