Abstract
Summary
1. The method of employing angioplethysmokymography to evaluate the responses of coronary arteries to several drugs is described.
2. Epinephrine did not produce a uniform response in the coronary arteries examined. The relation of this inconsistency to the state of vasodilation of the specimen artery is discussed.
3. Acetylcholine was found to produce consistent coronary vasoconstriction in man, pig and sheep.
4. Histamine uniformly produces vasconstriction of the coronary arteries of man, pig, ox and sheep.
Get full access to this article
View all access options for this article.