Method and apparatus for synchronization of atrial defibrillation pulses
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United States of America
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Jul 4, 2000
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N/A
app pub date -
Apr 1, 1997
filing date -
Nov 2, 1993
priority date (Note) -
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Abstract
A method and apparatus for detecting and treating atrial fibrillation. In response to detecting atrial fibrillation, the device derives an escape interval based on one or more preceding intervals between ventricular depolarizations. The escape interval is initiated in response to a ventricular depolarization, and in response to the expiration of the escape interval, an atrial cardioversion pulse is delivered. In one embodiment of the invention, the cardioverting pulse is delivered immediately upon expiration of the derived escape interval. In a second embodiment of the invention, a ventricular pacing pulse is delivered on expiration of the escape interval, with an atrial cardioversion pulse following after a short delay.
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