Ventricular fibrillation threshold for AC shocks of long duration, in dogs with normal acid-base state
Year: 1973
Type: article
Abstract: Scott, Janet R., Lee, W. R., and Zoledziowski, S. (1973).British Journal of Industrial Medicine,30, 155-161. Ventricular fibrillation threshold for AC shocks of long duration, in dogs with normal acid-base state. Earlier experimental studies of threshold ventricular fibrillating currents passing along the common accident pathway of forelimb to leg have shown a wide range of results for any one shock duration. In the present investigation the acid-base state of the experimental animals (dogs) was held within normal limits. It was found that whereas the mean minimum fibrillating current, 82·2μA for 3-second shocks, was within the values found by other workers, the range of results was reduced considerably to 67-101μA. Further, when the shock duration was increased, in stages, up to 60 seconds, again keeping the acid-base state within normal limits, the mean minimum fibrillating current did not alter markedly (being 80μA at 60 seconds) but the range of results progressively fell and was 73-88μA at 60 seconds. In the light of these findings the mechanism of ventricular fibrillation is discussed.
DOI: 10.1136/oem.30.2.155
Authors: J. R. Scott, W. R. Lee, S. Zoledziowski
Institutions: University of Manchester, University of Salford
Language: English
Subfield: Cardiology and Cardiovascular Medicine
Field: Medicine
Domain: Health Sciences
Open Access status: bronze
OpenAlex ID: W2013975490