Coronary artery catheter-induced spasm.
A patient developed a lesion in the proximal and mid right coronary artery during cardiac catheterization. Following the administration of nitroglycerin, repeat right coronary angiography showed a normal right coronary artery. Therefore, distal lesions associated with catheter-induced spasm in the same coronary artery should not always be considered "fixed" lesions; but rather, they may be due to spasm.
D006328:Cardiac Catheterization / Q000009:adverse effects* / Q000295:instrumentation; D003327:Coronary Disease / Q000175:diagnosis / Q000000981:diagnostic imaging; D003329:Coronary Vasospasm / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000209:etiology*; D005260:Female; D006801:Humans; D008875:Middle Aged; D011859:Radiography