TY - GEN
T1 - A cardiac monophasic action potential recording array
AU - Witkowski, Francis X.
AU - Penkoske, Patricia A.
N1 - Copyright:
Copyright 2004 Elsevier B.V., All rights reserved.
PY - 1990
Y1 - 1990
N2 - A technique that allows multiple simultaneous monophasic action potential (MAP) recordings in vivo using sintered Ag/AgCl electrodes is presented. Button MAP electrodes were designed that are held onto the epicardial surface by a nylon mesh sock, with controlled application of suction used to obtain the MAP waveform. External vacuum application and epicardial fixation were found useful in studies of defibrillatory shocks to minimize shock hazards as well as optimize MAP reproducibility and stability. Stable recordings were obtained from the same epicardial site for 30-s intervals every 3 min for periods up to 4 hr. It is argued that this technique may prove useful in the in vivo determination of instantaneous activation and shock-induced repolarization alterations.
AB - A technique that allows multiple simultaneous monophasic action potential (MAP) recordings in vivo using sintered Ag/AgCl electrodes is presented. Button MAP electrodes were designed that are held onto the epicardial surface by a nylon mesh sock, with controlled application of suction used to obtain the MAP waveform. External vacuum application and epicardial fixation were found useful in studies of defibrillatory shocks to minimize shock hazards as well as optimize MAP reproducibility and stability. Stable recordings were obtained from the same epicardial site for 30-s intervals every 3 min for periods up to 4 hr. It is argued that this technique may prove useful in the in vivo determination of instantaneous activation and shock-induced repolarization alterations.
UR - http://www.scopus.com/inward/record.url?scp=0025541061&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:0025541061
SN - 0879425598
T3 - Proceedings of the Annual Conference on Engineering in Medicine and Biology
SP - 595
EP - 596
BT - Biomedical Engineering Perspectives
PB - Publ by IEEE
T2 - Proceedings of the 12th Annual International Conference of the IEEE Engineering in Medicine and Biology Society
Y2 - 1 November 1990 through 4 November 1990
ER -