Detection and/or Monitoring of Diastolic Heart Failure
First Claim
1. An implantable medical device for detecting and/or monitoring progression of diastolic heart failure DHF of a patient, first measurement unit that measures a parameter indicative of left ventricular ejection fraction LVEF a second measurement unit that measures a variable indicative of the workload of the patient, a determination unit that determines a relation between LVEF and the workload of the patient, and a DHF unit that detects DHF and/or monitors progression of DHF from said relation.
1 Assignment
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Accused Products
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.
13 Citations
32 Claims
- 1. An implantable medical device for detecting and/or monitoring progression of diastolic heart failure DHF of a patient, first measurement unit that measures a parameter indicative of left ventricular ejection fraction LVEF a second measurement unit that measures a variable indicative of the workload of the patient, a determination unit that determines a relation between LVEF and the workload of the patient, and a DHF unit that detects DHF and/or monitors progression of DHF from said relation.
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17. (canceled)
- 21. A method of detecting and/or monitoring the progression of diastolic heart failure DHF, of a patient, comprising measuring a parameter indicative of left ventricular ejection fraction LVEF, measuring a variable indicative of the workload of the patient determining a relation between LVEF and workload of the patient, and detecting DHF and/or monitoring progression of DHF from said relation.
- 25. The method according to comprising measuring a parameter indicative of LVEF comprises measuring a pre-ejection period PEP, starting from onset of a QRS and ending with the opening of the aortic valve, and left ventricular ejection time starting with opening and ending with closing of the aortic valve, and estimating LVEF PEP/LVET.
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31. An implantable cardiac stimulator comprising:
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a device for detecting and/or monitoring progression of diastolic heart failure DHF of a patient comprising an implantable medical device for detecting and/or monitoring progression of diastolic heart failure DHF of a patient, first measurement unit that measures a parameter indicative of left ventricular ejection fraction LVEF a second measurement unit that measures a variable indicative of the workload of the patient, a determination unit that determines a relation between LVEF and the workload of the patient, and a DHF unit that detects DHF and/or monitors progression of DHF from said relation and that emits an output corresponding thereto; and a device adapted to interact with the patient to deliver cardiac therapy to the patient dependent on said output. - View Dependent Claims (18, 20, 32)
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Specification