Method of and apparatus for multi-vector pacing artifact detecti

Details Method of and apparatus for multi-vector pacing artifact detecti Method of and apparatus for multi-vector pacing artifact detecti

1990-11-09

1992-07-07

Kamm, William E.

Surgery

Truss

Pad

A61N 137

Patent

active

051274019

ABSTRACT:
A technique for improving detection of the pacing artifact in patients having artificially paced myocardial contractions. The improved detection is accomplished by sensing all three commonly monitored EKG leads. Each lead is differentially amplified and rectified to produce a signal of absolute value. The resulting three signals are algebraically summed and differentiated. Because the pacing artifact consists of higher frequency components than the naturally occurring QRS complex, it can easily be detected by its much larger first derivative.
Reliable detection of the artificial pacing artifact is extremely important in monitoring and programming implantable pacers. It is necessary to accurately determine whether a pacing pulse has been delivered and precisely measure the time of its occurrence.

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"Rhythm Analysis Using Vector Cardiograms", by Murthy et al., IEEE Transactions on Biomedical Engineering, vol. BME-32, No. 2, Feb. '85.

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