| 摘要 |
An implantable cardiac device includes electrodes for sensing and pacing the heart, and optionally, defibrillation electrodes. The IECG sensed in the heart is processed to derive raw sense signals indicative of whether the sensed QRS complexes exceed a predetermined range. These signals are used to control the pacing pulses, and to detect high amplitude noise. This noise is differentiated from tachycardia.
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