Journal article

DIAGNOSTIC-ACCURACY OF THE RESTING ELECTROCARDIOGRAM IN DETECTION AND ESTIMATION OF LEFT ATRIAL ENLARGEMENT - AN ECHOCARDIOGRAPHIC CORRELATION IN 551 PATIENTS

MS HAZEN, TH MARWICK, DA UNDERWOOD

AMERICAN HEART JOURNAL | MOSBY-YEAR BOOK INC | Published : 1991

Abstract

The identification of LA enlargement may have important clinical implications. Previous correlations of ECG P wave morphologies associated with LA enlargement and echocardiography have been limited by the use of small numbers of patients and by the employment of M-mode echocardiography without the benefit of two-dimensional guidance. The purpose of this study was to further examine the sensitivity and specificity of various P wave morphologies (P wave greater than or equal to 110 msec, notched P greater than or equal to 40 msec, and PTFV1 greater than or equal to 40 msec.mm) for the diagnosis of LA enlargement and to determine if these waveforms may be predictive of LA size. ECGs and surface..

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