RT Book, Section A1 Kiefer, Todd A1 Granger, Christopher B. A1 Jackson, Kevin P. A2 Papadakis, Maxine A. A2 McPhee, Stephen J. A2 Rabow, Michael W. A2 McQuaid, Kenneth R. SR Print(0) ID 1193147390 T1 Coronary Vasospasm & Angina MI with Normal Coronary Arteriograms T2 Current Medical Diagnosis & Treatment 2023 YR 2023 FD 2023 PB McGraw-Hill Education PP New York, NY SN 9781264687343 LK accessmedicine.mhmedical.com/content.aspx?aid=1193147390 RD 2024/04/25 AB ESSENTIALS OF DIAGNOSISPrecordial chest pain, often occurring at rest during stress or without known precipitant, relieved rapidly by nitrates.ECG evidence of ischemia during pain, sometimes with ST-segment elevation.Angiographic demonstration of:– No significant obstruction of major coronary vessels.– Coronary spasm that responds to intracoronary nitroglycerin or calcium channel blockers.