Clinical study
Comparison of internal mammary artery ligation and sham operation for angina pectoris

https://doi.org/10.1016/0002-9149(60)90105-3Get rights and content

Abstract

A sham operation was compared to ligation of the internal mammary arteries in patients with angina pectoris. Patient improvement was identical. The exercise electrocardiogram was not altered by either procedure.

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This study was aided in part by grants from the Kansas Heart Association and the National Heart Institute (HTS-5210 [C1]).

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