ECG ELECTRODES - STUDY OF ELECTRICAL AND MECHANICAL LONG-TERM PROPERTIES

The long‐term properties of commercially available ECG‐electrodes were studied by investigating the parameters: polarization potential, electrical impedance, adhesion, and skin reactions during a period of 7 days. As expected, the most stable polarization potentials were obtained for Ag/AgCl electrodes. Certain simple disposable electrodes showed large polarization potential variations. The most stable electrode impedance was obtained for disposable electrodes with stable adhesion and equipped with an electrode cup or similar. Unchanged adhesion and mrrhanical properties during the test period were shown by the disposable clcrtrodcs with a large self‐adhesive collar. © 1979 Acta Anaesthesiologica Scandinavica Fonden