PMID: 107890Feb 1, 1979

Detection of coronary artery spasm by the methylergometrin test. Technic. Results. Indications

Archives des maladies du coeur et des vaisseaux
M BertrandJ P Lekieffre


Methylergometrine (Methergin) was given intravenously (0.4 mg) to 118 patients undergoing coronary arteriography. The electrocardiogramme and intraaortic pressure was continuously monitored whilst coronary arteriography was performed, 1,3, and 5 minutes after the injection of the ergot alkaloid. The test was positive if: 1) coronary spasm was observed; 2) if ST segment elevation was recorded with or without pain. Positive tests were obtained in 13 out of 14 patients with Prinzmetal angina. The test was negative in the other patients. However in 3 patients with Prinzmetal angina, the test produced typical coronary spasm without electrocardiographic changes. In Prinzmetal angina the sensitivity of this test was 93 p. 100 with a high specificity: 96-100 p. 100 depending on whether or not electrocardiographical changes associated with spasm are considered. Taking into account current therapeutic methods of treating Prinzmetal angina the indications of this test of coronary spasm are: 1) patients presenting with resting angina whatever the state of their coronary arteries; 2) patients with documented Prinzmetal angina with "angiographically normal" coronary arteries.

Related Concepts

Angina Pectoris, Variant
Ascending Aorta Structure
Diastolic Blood Pressure
Coronary Heart Disease
Electrocardiographic Recorders
Intravenous Injections
Generalized Spasms
Coronary Angiography

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