| abstract |
Methods and systems provide reliable, convenient and cost-effective personalized assessment of hemodynamic status in ambulatory heart failure patients. The method and apparatus use pulse contour analysis of data obtained by observing the patient to determine the hemodynamic state and to determine day-to-day changes in the hemodynamic state. Observational evaluation of this patient included monitoring during activities of daily living, including sleeping, sitting, and standing. These activities produce changes in venous return that are used to assess cardiac function or changes in cardiac function. The method and system infers body position by using position and motion information obtained by the system. Changes in cardiac function over time or due to changes in body position are evaluated in order to assess hemodynamic status, with a focus on changes caused by fluid overload. |