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Implantable cardiac device providing mode switching and automatic atrial sensitivity control and method
Implantable cardiac device providing mode switching and automatic atrial sensitivity control and method
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机译:提供模式切换和自动心房敏感性控制的可植入心脏设备和方法
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摘要
An implantable cardiac stimulation device, mode switchable between atrial tracking and atrial non-tracking pacing modes includes a threshold control for controlling atrial sensing threshold. The threshold control reduces the sensing threshold from a first threshold used during the atrial tracking pacing mode to a second threshold between the first threshold and the noise for use during the atrial non-tracking pacing mode. The necessity for readjusting the atrial sensing threshold is based upon the ratio of the sensing threshold and atrial amplitudes or upon a diagnostic distribution of atrial amplitudes.
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