This case report describes multivessel coronary artery spasm refractory to oral nifedipine, intravenous isosorbide dinitrate, diltiazem and nicorandil, and intracoronary nitroglycerin. Intracoronary administration of nicorandil only transiently relieved coronary artery spasm. Prednisolone was effective in preventing coronary artery spasm.
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