Surgery – Diagnostic testing – Cardiovascular
Reexamination Certificate
2007-12-25
2007-12-25
Bockelman, Mark (Department: 3766)
Surgery
Diagnostic testing
Cardiovascular
Reexamination Certificate
active
10780794
ABSTRACT:
A method and apparatus for predicting acute response to cardiac resynchronization therapy is disclosed. The method can comprise measuring a first interval during an intrinsic systolic cycle and measuring a second interval during a stimulated systolic cycle. The acute response can be predicted by comparing the percent change in duration between the first interval and the second interval against a pre-determined threshold value. The first and second time intervals can be measured using, for example, a surface ECG or, alternatively, an intracardiac electrogram. In one embodiment, the first interval can be the duration of an intrinsic QRS complex measured during a non-stimulated systolic cycle. Similarly, the second interval can be the duration of a stimulated QRS complex measured during a stimulated systolic cycle.
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Aurichio Angelo
Ding Jiang
Spinelli Julio
Yu Yinghong
Bockelman Mark
Cardiac Pacemakers Inc.
Schwegman Lundberg & Woessner, P.A.
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