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The Frank vectorcardiogram in coal miners' pneumoconiosis.

Authors
Hunsaker-MR; Kaplan-K; Donnelly-J; Lapp-NL
Source
J Electrocardiol 1970 Jan; 3(2):155-159
NIOSHTIC No.
00019673
Abstract
The relationship of the Frank vectorcardiogram to right ventricular hypertrophy in 22 coal miners with simple pneumoconiosis was investigated. Assessment of subjects without overt evidence of right ventricular enlargement was performed to delineate initial hemodynamic changes in the right ventricle as reflected in the vectorcardiogram. The parameters chosen failed to show evidence of right ventricular hypertrophy when right ventricular peak systolic pressures ranged from 20 to 38 millimeters mercury. The results indicate that anatomic right ventricular enlargement is detected in the vectorcardiogram after pressure overloading of the right ventricle and not after the earlier stage of volume overloading.
Keywords
Pulmonary-disorders; Respiratory-disorders; Symptoms; Radiology; Electrocardiography
CODEN
JECAB4
Publication Date
19700101
Document Type
Journal Article
Fiscal Year
1970
NTIS Accession No.
NTIS Price
Issue of Publication
2
ISSN
0022-0736
NIOSH Division
ALFORD
Source Name
Journal of Electrocardiology
State
WV
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