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Dilated cardiomyopathy: utility of the transverse: frontal plane QRS voltage ratio.

Abstract：

:Dilated cardiomyopathy is associated with an increase in transverse plane QRS voltage but a decrease in frontal plane QRS voltage. To study this paradoxical relationship further, electrocardiograms (ECGs) were retrospectively analyzed from five groups of men. Frontal plane QRS voltage was computed as the sum of peak-to-trough QRS amplitudes in the two limb leads with highest QRS voltage; transverse QRS voltage as the maximum peak-to-trough QRS voltage in leads [V1 or V2] + [V5 or V6]. The transverse:frontal plane QRS voltage ratio was significantly (p less than 0.01) greater in 26 patients with idiopathic dilated cardiomyopathy (3.0 +/- 1.3) compared to 29 patients with compensated aortic valve disease (2.0 +/- 0.6), 30 healthy men (2.0 +/- 0.6) and 20 patients with ischemic heart disease and relatively normal left ventricular function (1.9 +/- 0.8), but not significantly different from the ratio for patients with ischemic cardiomyopathy (2.3 +/- 1.1). This differential effect of dilated cardiomyopathy on transverse and frontal plane QRS voltages, which probably relates to a combination of mechanical and vectorial factors, may be the basis of a useful new ECG sign.

journal_name

J Electrocardiol

journal_title

Journal of electrocardiology

authors

Goldberger AL,Dresselhaus T,Bhargava V

doi

10.1016/s0022-0736(85)80032-7

subject

Has Abstract

pub_date

1985-01-01 00:00:00

pages

35-40

issue

1

eissn

0022-0736

issn

1532-8430

journal_volume

18

pub_type

杂志文章

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