System and method for determining a reference baseline for use in heart failure assessment

摘要

A system and method for determining a stressor-based reference baseline for use in heart failure assessment is presented. A patient is monitored during an observation time period while the patient performs prescribed physical stressors and by applying pacing stimulus stressors to a medical device. Physiological measures are stored from the observation period, including at least one of direct measures regularly recorded on a substantially continuous basis by the medical device and measures derived therefrom. The measures that originate from the observation time period as a reference baseline for the patient are identified. The reference baseline and those measures originating subsequent to the observation period are evaluated. The measures are analyzed to detect any trends, including one of a status quo and a change in cardiac performance of the patient. Each trend is compared to parameters corresponding to worsening heart failure indications to generate a notification of parameter violations.

主权项

1. A system for determining a stressor-based reference baseline for use in heart failure assessment, comprising:
a programmer to receive monitoring of a patient that was performed during an observation time period while the patient performed prescribed physical stressors and while pacing stimulus stressors were applied to a medical device of the patient; and a server, comprising,
a storage module to store physiological measures from the observation period into a patient care record comprising at least one of direct measures regularly recorded on a continuous basis by the medical device and measures derived therefrom;a reference baseline module to identify those of the physiological measures that originate from the observation time period as a reference baseline for the patient; andan evaluation module to evaluate the reference baseline and those physiological measures originating subsequent to the observation period, comprising:
an analyzer module to compare the direct measures and derived measures to the physiological measures from the observation period to detect a patient status comprising one of a status quo and a change in cardiac performance of the patient; anda comparison module to compare the patient status to parameters corresponding to worsening heart failure indications to generate a notification of parameter violations.