Elsevier

American Heart Journal

Volume 27, Issue 1, January 1944, Pages 19-85
American Heart Journal

Original communication
The precordial electrocardiogram

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References (22)

  • K.S. Cole et al.

    Electric Impedance of Squid Giant Axon During Activity

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      These criteria specify a QRS duration of 120 ms as well as broad notched or slurred R waves in the left-sided leads I, aVL, V5, and V6; delayed time to R-wave peak; and several other criteria involving the ST segment and T-wave morphology (Table 1). The WHO criteria derive in turn from earlier criteria,8 and the lineage of these criteria can be traced back in largely preserved form to work published in the 1940s and earlier by Wilson and others.9–11 The observations used to inform these criteria were primarily derived from in vitro canine models and limited intraprocedural recordings during early cardiac surgery.

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      Both Wilson’s and Prinzmetal’s groups used epicardial electrocardiograms from numerous sites (epicardial maps) to study events following coronary occlusion. In a classic paper from 1944, Wilson and colleagues provided data from dog experiments demonstrating “the close relation between potential variations of a precordial electrode and the potential variation of the underlying ventricular surface” [9]. The use of precordial electrocardiography methods in man was introduced by Myers et al, who correlated precordial electrocardiographic changes to pathological findings in patients with anterior wall infarctions [10].

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    Much of the work upon which this article is based was done with the ald of a grant from the Horace H. Rackham School of Graduate Studies.

    1

    This material was presented by Frank N. Wilson at the fifty-third annual meeting of the Association of Life Insurance Medical Directors of America held Oct. 21 and 22, 1942, and has been published in the Transactions of that Association (Vol. xxix, pp. 154–251).

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