Electrocardiographic study of chronic pulmonary emphysema by means of body surface mapping.


In order to investigate the electrocardiographic changes in patients with chronic pulmonary emphysema (CPE), 87 unipolar electrocardiograms were simultaneously recorded in 20 normal subjects and 22 patients with CPE. The voltages and the sites of Max. R (most positive R) and Max. S (most negative S) in these 87 leads were investigated. Further, the voltages… (More)