Method and apparatus for dual chamber cardiac pacing
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United States of America Patent
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Apr 16, 1996
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N/A
app pub date -
Mar 17, 1994
filing date -
Mar 17, 1994
priority date (Note) -
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Abstract
A dual chamber pacemaker and a method of employing the pacemaker to accomplish atrial synchronized ventricular pacing with complete ventricular capture by control of the A-V escape intervals of the pacer. The maximum A-V escape interval effective to accomplish complete ventricular capture is determined and compared to intrinsic A-V conduction time to derive an offset interval. The offset interval is subtracted from the initially measured conduction time to select initial A-V escape interval durations and is subtracted from A-V conduction times measured after implant of the pacemaker to automatically adjust A-V escape interval durations of the pacemaker to maintain complete ventricular capture.
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