Surgery – Diagnostic testing – Cardiovascular
Patent
1997-04-30
1998-12-01
Kamm, William E.
Surgery
Diagnostic testing
Cardiovascular
A61B 50452
Patent
active
058429972
ABSTRACT:
A method and an apparatus for the non-invasive, dynamic tracking and diagnosing of cardiac vulnerability to ventricular fibrillation are disclosed. T-wave alternans and heart rate variability are simultaneously evaluated. T-wave alternation is an absolute predictor of cardiac electrical stability. Heart rate variability is a measure of autonomic influence, a major factor in triggering cardiac arrhythmias. By simultaneously analyzing both phenomena, the extent and cause of cardiac vulnerability can be assessed.
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Nearing Bruce D.
Verrier Richard L.
Georgetown University
Kamm William E.
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