1. Volume 79, Issue 4, Pages 449-453 (April 1981)
Coronary Artery Spasm 
Richard K. Mautner, M.D., F.C.C.P., Guy E. Katz, B.S., Bruce J. Iteld, M.D., F.C.C.P., John H. Phillips, M.D., F.C.C.P. 
CHEST 
Volume 79, Issue 4, Pages (April 1981)
DOI: /chest
Copyright © 1981 The American College of Chest Physicians Terms and Conditions

2. Figure 1
A. Patient 1. Baseline ECG recorded from monitor lead 2. B. Electrocardiograms after intravenous injection of 0.30 mg of ergonovine maleate. C. ECG after administration of two 1/150-gr nitroglycerin tablets. Note marked ST segment elevation in B during which time patient experienced chest pain. Peaked T waves and persistent ST elevation returned to baseline on follow-up ECGs (tracings retouched).
CHEST  , DOI: ( /chest )
Copyright © 1981 The American College of Chest Physicians Terms and Conditions

3. Figure 2
A (upper). Patient 3. Coronary arteriogram showing spontaneous total occlusion of right coronary artery proximal to the acute marginal branch (arrow). This episode was associated with severe chest pain and ST segment elevation in lead 2. B (lower). Arteriogram after administration of sublingual nitroglycerin showing reversal of spontaneous occlusion in 2A. EGG returned to normal, and chest pain subsided.
CHEST  , DOI: ( /chest )
Copyright © 1981 The American College of Chest Physicians Terms and Conditions