2 montds prior to admission	Patient complained chest pain at rest and had episodes of syncope.
1 week prior to admission	Before computed tomography coronary angiography (CTCAG), he complained aura before syncope. Inverted T waves on V5, V6 leads were observed.
1 week prior to admission	CTCAG disclosed severe stenosis at the proximal left anterior descending (LAD) artery.
Day 0 (admission)	Patient admitted to our hospital for further examinations.
Day 0 (admission)	Thallium adenosine myocardial scintigraphy revealed no ischaemia in the LAD coronary artery territory.
Day 1 (admission)	Mild organic stenosis (50%) was found at the proximal LAD artery after coronary arteriography.
Day 1 (admission)	Intracoronary ergonovine test disclosed no spasm on both coronary arteries.
Day 1 (admission)	Typical diffuse spasm at the distal LAD artery was found after the administration of intracoronary 100 µg acetylcholine into the left coronary artery without a pacemaker accompanied with typical chest pain and prodrome before syncope.
Day 1 (admission)	Patient was finally diagnosed with coronary vasospastic angina.
Day 2 (admission)	Patient was medically managed with calcium channel blocker (4 mg benidipine) and nicorandil (10 mg), and patient was discharged.
6 months after discharge	Patient remained well on medical management including calcium channel blocker and nicorandil. Patients had never complained of chest pain or syncope for more than 6 months.