Diagnostic approach to patients with intermediate to high suspicion of vasospastic angina (ie, nitrate-responsive chest pain predominantly at rest)

ECG: electrocardiogram; CCTA: coronary computed tomographic angiography; CAD: coronary artery disease; ASCVD: atherosclerotic cardiovascular disease.

* Refer to UpToDate content for further detail on the treatment of vasospastic angina.

¶ Refer to UpToDate content for further detail on cardiac diagnostic testing.

Δ If, after intracoronary nitroglycerin, there is still a hemodynamically significant coronary stenosis, obstructive CAD is present.

◊ Refer to UpToDate content for information on ASCVD secondary prevention.