Coronary spasm induced by dipyridamole during a myocardial scintigraphy.
A 59-year-old male underwent a dipyridamole myocardial scintigraphy. During dipyridamole infusion, a marked ST-segment elevation was observed in the inferior leads. After aminophylline injection, a short burst of ventricular tachycardia occurred, then the ST-segment elevation disappeared. The myocardial scintigraphy was consistent with myocardial ischemia of the inferior wall. The coronary angiography revealed no significant coronary lesion. Coronary spasm induced by dipyridamole remained the most probable mechanism for this complication.
Weinmann
P
P
Service de Biophysique et Médecine Nucléaire, Hôpital Avicenne, Bobigny, France.
Le Guludec
D
D
Moretti
J L
JL
D003329:Coronary Vasospasm / Q000139:chemically induced* / Q000503:physiopathology; D004176:Dipyridamole / Q000009:adverse effects*; D004562:Electrocardiography; D006321:Heart / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011877:Radionuclide Imaging
D004176:Dipyridamole