Abstract
Frequent tracings of ECG during attacks of the nocturnal angina pectoris of a 69-year-old man failed to show any evidence of angina pectoris electrocardiographically. Angina pectoris was, however, induced by an intravenous administration of 50% glucose unexpectedly, and relieved by sublingual nitroglycerin and oxygen inhalation. The mechanism of this unusual phenomenon was discussed in relation to the serum-potassium, plasma-insulin, and the spasm of the coronary artery.
