Coronary artery spasm during initiation of epidural anesthesia.
D000767:Anesthesia, Epidural / Q000009:adverse effects*; D000789:Angina, Unstable / Q000139:chemically induced / Q000503:physiopathology; D003329:Coronary Vasospasm / Q000139:chemically induced* / Q000503:physiopathology; D004562:Electrocardiography / Q000187:drug effects; D005260:Female; D006801:Humans; D008875:Middle Aged