Intracoronary thrombus on optical coherence tomography in a patient with variant angina; treatment and follow-up
Variant angina is caused by transient and recurrent coronary spasm leading to episodes of transmural myocardial ischemia with ST segment elevation. Neurological, humoral and local factors have been proposed, and endothelial dysfunction are important predisposing factors 1 . However, intravascular ultrasound studies have shown that atherosclerosis is invariably present at site of focal vasospasm 2 . Intravascular optical coherence tomography (OCT) is a high-resolution imaging method for plaque characterization and detection of intracoronary thrombus 3 .