The electrical impedance cardiogram in health and disease - 12/10/17
Doi : 10.1016/0002-8703(68)90234-2
Bernard G. Krohn, M.D. a, b, c, Edward Dunne, M.D. a, b, c, Oscar Magidson, M.D. a, b, c, Harve Hanish a, b, c, Harold K. Tsuji, M.D. a, b, c, John V. Redington, M.D. a, b, c, Jerome Harold Kay, M.D. a, b, c
a Department of Medicine of the University of Southern California Medical School, The Saint Vincent's Hospital, Los Angeles, Calif., USA
b Department of Surgery of the University of Southern California Medical School, The Saint Vincent's Hospital, Los Angeles, Calif., USA
c The Los Angeles County General Hospital, Los Angeles, Calif., USA
Abstract |
1. | 1. The electrical impedance cardiogram (ICG) records continuous changes in heart shape throughout the cardiac cycle. It can be recorded on any direct writing electrocardiograph. |
2. | 2. Certain electrical impedance cardiograms closely resembled mechanical displacement recordings of heart motion (apexcardiograms), indicating a related origin. |
3. | 3. Tracings from normal subjects resembled each other, but tracings from patients with known cardiac deformities differed from the normal. |
4. | 4. Atrial activity was recorded selectively. |
5. | 5. Paradoxical bulges of the left ventricle produced characteristic abnormalities in impedance cardiograms. |
6. | 6. The impedance cardiogram can be used to analyze dynamic dysfunctions of the heart. |
© 1968
Publié par Elsevier Masson SAS.
Vol 76 - N° 3
P. 377-387 - septembre 1968 Retour au numéro
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