| 摘要 |
An implantable cardiac stimulation device and method automatically verify capture of one or both ventricular chambers by sensing a far-field signal in both atrial chambers. A far-field interval window is set following the delivery of the ventricular stimulation, during which a far-field signal is detected and compared to a signal representing a predetermined far-field R-wave that represents successful capture of one or both ventricular chambers. If the far-field signal is approximately equal to the predetermined far-field R-wave signal, then capture is verified. If capture is not verified, a threshold search is performed in the ventricle in which capture was lost.
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