THE SECOND POSITIVE WAVE OF THE Q R S COMPLEX

1 January 1935

journal article
research article
Published by American Medical Association (AMA) in Archives of internal medicine (1960)

Vol. 55 (1) , 86-99
https://doi.org/10.1001/archinte.1935.00160190089008

Abstract

Great progress has taken place in the interpretation of electrocardiograms since their introduction. The evolution of the understanding of the significance of the Q R S complex, the R T and S T segments and the T wave has undergone many rapid strides, particularly during recent years, so that the recognition of pathologic variations from the usual normal appearance has become of considerable importance in detecting myocardial damage and abnormalities of the site of impulse production and of conduction and in the localization of cardiac infarction. Detailed attention to the description of the form and contour of the waves has yielded considerable information. VARIATION The variation to be described involves the terminal portion of the S wave in lead III. Of approximately 8,000 serial records, taken from the cardiographic laboratory of the Jewish Hospital of Brooklyn, 320 revealed a positive finding. Of the latter, the data in 50 are herewith

Keywords

This publication has 1 reference indexed in Scilit:

THE GALVANOMETRIC REGISTRATION OF THE HUMAN ELECTROCARDIOGRAM, LIKEWISE A REVIEW OF THE USE OF THE CAPILLARY‐ELECTROMETER IN PHYSIOLOGY¹*
Annals of Noninvasive Electrocardiology, 1997