Figure 2.

Twelve-lead electrocardiograms and coronary angiograms of variant angina. Chest pain attack (A) and post-sublingual nitroglycerin 0.6 mg (B) Twelve-lead electrocardiograms of a 47-year-old male patient who had variant angina show transient ST-segment elevation in the II, III, and aVF leads. Ten months later he underwent coronary angiography because of recurrent chest pain. The coronary angiograms reveal intracoronary methylergonovine-induced diameter reduction >70% in the mid-portion of right coronary artery (C, arrow), which was relieved after intracoronary nitroglycerin 200 μg administration (D).