Lesbre J P, Bernasconi P, Quiret J C, Poinsot J P
Arch Mal Coeur Vaiss. 1976 Aug;69(8):865-72.
It appears that a constant-speed infusion of isoproterinol is as reliable and sensitive a method of detecting coronary insufficiency as the exercise test. It is indicated when: - the exercise test is impossible or not submaximal; - there is disagreement between the clinical findings, which are suggestive, and ergometry, which is negative; - there is pure angina of effort arising spontaneously.