| 摘要 |
<p>The present disclosure pertains to cardiac pacing methods and systems, and, more particularly, to cardiac resynchronization therapy (CRT). In particular, the present disclosure pertains to determining whether a patient is experiencing atrial fibrillation (AF). If the patient is experiencing AF, the efficacy of CRT is determined. A signal is sensed in response to a ventricular pacing stimulus. Through signal processing, a number of features are parsed from the signal and a determination is made as to whether the ventricular pacing stimulus evoked a response from the ventricle. In response to the determination of effective capture, the ventricular pacing rate during atrial fibrillation is modified, hence increasing a percentage of effective ventricular capture during atrial fibrillation responsive to modifying the pacing rate during atrial fibrillation.</p> |
