Detection and/or monitoring of diastolic heart failure

Surgery – Cardiac augmentation – With condition responsive means

Reexamination Certificate

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Reexamination Certificate

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07662086

ABSTRACT:
In an implantable medical device for detecting and/or monitoring the progression of diastolic heart failure (DHF), and a corresponding method, a parameter is measured that is indicative of left ventricular ejection fraction (LVEF), and a variable is also measured that is indicative of the workload of the patient, and a relation is determined between LVEF and the workload, and DHF is detected and/or the progression of DHF is monitored, dependent on this relation.

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“The Relationship of Alternations in Systolic Time Intervals to Ejection Fraction in Patient's with Cardiac Disease,” Garrard, Jr., Circulation, vol. 42 (Sep. 1970) pp. 455-462.
“Measurements of Ejection Fraction by Bioimpedance Method,” Capan et al., Brit. Med., vol. 15 (1987), p. 402.

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