Adaptations to intra-thoracic fluid monitoring algorithm

Details Adaptations to intra-thoracic fluid monitoring algorithm Adaptations to intra-thoracic fluid monitoring algorithm

2006-07-28

2011-11-08

Szmal, Brian (Department: 3736)

Surgery

Diagnostic testing

Measuring electrical impedance or conductance of body portion

Reexamination Certificate

active

08055335

ABSTRACT:
Adaptations to an intra-thoracic fluid-status-trend indication and/or alert algorithm are disclosed. Some embodiments monitor fluid levels in heart failure patients and others suffering from pulmonary edema and the like. Some embodiments reset a cumulative fluid index when a short-term intra-thoracic impedance value exceeds a baseline impedance value minus a predetermined positive hysteresis value. Many device, system, and method embodiments hereof serve to reduce the number of false positive alerts while retaining the desired sensitivity.

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