Methods and apparatus for detection and treatment of syncope

A - Human Necessities – 61 – N

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A61N 1/365 (2006.01)

Patent

CA 2473647

The present invention relates to methods and apparatus for detection and treatment of syncope in an implantable medical device, and particularly to detection of syncope as a function of a predetermined increase in one or more respiration parameter and drop in heart rate and optionally delivering a pacing therapy in response thereto. The onset of a syncopal episode is declared when the patient's respiration rate and/or tidal volume and/or minute ventilation increases by a predetermined increment or threshold and a heart rate drops below a threshold heart rate drop. The threshold heart rate drop is preferably established as a function of the change in the respiration parameter.

La présente invention porte sur des procédés et sur un appareil de détection et de traitement de la syncope dans un dispositif médical implantable, et notamment sur la détection de la syncope en fonction d'une augmentation prédéfinie d'un ou plusieurs paramètres de respiration et de la baisse de la fréquence cardiaque, et éventuellement d'appliquer une thérapie de régulation en réaction à ces paramètres. L'apparition d'un épisode syncopal est déclaré lorsque la fréquence respiratoire et/ou le volume courant et/ou la ventilation minute du patient augmentent d'un seuil prédéterminé et que la fréquence cardiaque tombe au-dessous d'un seuil prédéterminé. La chute de la fréquence cardiaque à un seuil prédéterminé est de préférence établie en fonction de la variation du paramètre de respiration.

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