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Use of the Augmented Ejection Fraction to Select Patients with Left Ventricular Dysfunction for Coronary Revascularization by Lawrence H. Cohn; John J. Collins; Peter F. Cohn is a Medicine article available to read on EtoBox.

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Thirty-three patients with angina (31 men and 2 women, age 33 to 68 years, 52), as well as signs and symptoms of severe left ventricular dysfunction, were evaluated for coronary revascularization surgery. All had multiple vessel coronary artery disease and at least one prior myocardial infarction. Cardiac catheterization demonstrated abnormally elevated left ventricular end-diastolic pressure (LVEDP), low cardiac output, and depressed resting biplane systolic ejection fraction (SEF) ranging from 18 to 45 per cent (31 per cent). To evaluate potential myocardial function, a premature ventricular contraction was introduced during the ventriculogram and the SEF of the postextrasystolic potentiated (PESP) beat calculated and compared to a sinus beat SEF. Patients were separated into two groups based on the increase in SEF: those with >0.I0 augmentation (24 patients) and those with <0.I0 augmentation (9 patients). Coronary revascularization was carried out with at least two bypass grafts in each patient. The operative mortality in those with more than 0.1 SEF augmentation was 9 per cent (2/24), late mortality rate 5 per cent ( 1122), and 20121 became Class I or II in the follow-up period

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Author

Lawrence H. Cohn; John J. Collins; Peter F. Cohn

Publisher

CTSNet; American Association for Thoracic Surgery; Mosby Inc.; Elsevier BV; Publons (ISSN 1097-685X)

Published

1976

Language

EN

Field

Medicine (Health Sciences)