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The Journal of Thoracic and Cardiovascular Surgery, Vol 73, 583-588, Copyright © 1977 by The American Association for Thoracic Surgery and The Western Thoracic Surgical Association

ARTICLES

Signal enhancement for detection of specialized atrioventricular conduction system electrograms during open-heart surgery

J Schatz, S Ross, E Krongrad, FO Bowman Jr, JR Malm and BF Hoffman

A method for signal enhancement of electrograms of the specialized atrioventricular conduction system is presented. This method allows a single electrogram to replace the tracings of bipolar electrograms previously required to ensure recognition of the specialezed conduction system and yet maintains the safety afforded by use of three pairs of recording electrodes. In addition, this new signal is enhanced in magnitude and is always unidirectional (positive). These features are desirable for automated signal recognition. This method therefore provides an important step toward future automation and signal recognition of specialized conduction system electrograms during open- heart surgery.




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Copyright © 1977 by The American Association for Thoracic Surgery.