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Characteristics of Intracardiac Electrograms *
Author(s) -
MYERS GEORGE H.,
KRESH YASHA M.,
PARSONNET VICTOR
Publication year - 1978
Publication title -
pacing and clinical electrophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.686
H-Index - 101
eISSN - 1540-8159
pISSN - 0147-8389
DOI - 10.1111/j.1540-8159.1978.tb03445.x
Subject(s) - medicine , intracardiac injection , electrode , amplitude , cardiology , amplifier , biomedical engineering , bandwidth (computing) , telecommunications , optics , chemistry , physics , computer science
Cardiac electrograms were measured on endocardial leads on patients undergoing pacemaker implantation. The data show that small area electrodes reduce R wave amplitude, decrease width of the complex, and increase slopes. The bandwidth of the electrogram increases as the electrode area decreases. The loading of the sensing amplifier changes these characteristics. Distortion is most pronounced for small area electrodes and low lead resistances.