Systems and methods for cardiac segmentation analysis

Abstract

A system for the detection of cardiac events occurring in a human patient is provided. At least two electrodes are included in the system for obtaining an electrical signal from a patient's heart. An electrical signal processor is electrically coupled to the electrodes for processing the electrical signal. Electrical signals are acquired in segments and segment score rules are applied to the segments to classify them. To detect an abnormal cardiovascular condition, diagnostic rules are applied to the classification data. Patient state information modulates the acquisition of electrical data, the application of segment score rules, and the application of diagnostic rules.

Description

RELATED U.S. APPLICATION DATA[0001]This application is a continuation of U.S. patent application Ser. No. 10 / 710,902 entitled “Systems and Methods of Medical Monitoring According to Patient State”, which is based upon U.S. Patent Application No. 60 / 767,073 to John, entitled “Systems and Strategies for Long-Term Monitoring of Cardiac Status” filed on Mar. 1, 2006 and U.S. Patent Application No. 60 / 830,133, entitled “Systems and Strategies for Long-Term Monitoring of Cardiac Status” filed on Jul. 12, 2006.DESCRIPTION & BACKGROUND[0002]This invention is in the field of systems, including devices, implanted within or attached to a human patient, for monitoring biological activity. The invention is preferably applied to the monitoring of cardiac status, providing early detection and / or prediction of unwanted medical conditions and alarming the patient in response thereto.[0003]Implantable devices which monitor and store sensed data and provide alarms when pathological conditions occur wi...

AI Technical Summary

Problems solved by technology

Fischell et al in U.S. Pat. Nos. 6,112,116, 6,272,379, 6,468,263, 6,609,023 and 6,985,771 which are incorporated herein by reference, describe such systems for acute detection and warning, however, these do not describe the capabilities to measure and store data related to trends of cardiovascular health over extended periods of time.

For example, an increase in the occurrence of responsive therapy, such a pacing therapy, over time may indicate that the heart is getting sicker or that pacing is losing its efficacy.

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