Catheter-induced spasm during spontaneous attack of variant angina.
The simultaneous occurrences of spontaneous spasm and catheter-induced spasm during coronary angiography were obtained in 3 patients. Catheter-induced spasm was seen in the right coronary artery in 3 patients: 1 patient had spontaneous spasm in the distal right coronary artery and 2 patients had spontaneous spasm in the proximal left anterior descending coronary artery. These findings suggest that patients with variant angina may be susceptible to mechanical induction of spasm.
D000788:Angina Pectoris, Variant / Q000175:diagnosis* / Q000188:drug therapy; D006328:Cardiac Catheterization; D017023:Coronary Angiography; D003326:Coronary Circulation / Q000187:drug effects; D003329:Coronary Vasospasm / Q000175:diagnosis* / Q000188:drug therapy; D006801:Humans; D008297:Male; D008875:Middle Aged; D005996:Nitroglycerin / Q000627:therapeutic use
D005996:Nitroglycerin