Tag Archives: optical coherence tomography (OCT)

Introduction Acute coronary events are commonly caused by plaque rupture, erosion and, infrequently, calcific nodules. In the majority of patients with acute coronary syndrome (ACS), occlusive or sub-occlusive thrombus on top of plaque deformation is the main angiographic finding. Resolving acute thrombotic occlusion remains the cornerstone step in restoring adequate coronary perfusion. Blind dealing with thrombi, depending only on angiography, may be an obstacle to optimal myocardial perfusion and increase in-hospital morbidity and mortality.1–4 In the past, intravascular ultrasound (IVUS) and, more recently, optical coherence tomography (

Introduction Coronary angiography and intravascular ultrasound (IVUS) have traditionally been used for diagnosis of stent edge dissection.1 Optical coherence tomography (OCT), with better resolution (12 to 18 µm) as compared with IVUS (150–250 µm), has higher chances of detecting stent edge dissection. Reported incidences of stent edge dissection range from 5% to 23% by IVUS,2 compared with 20% to 56% by OCT.3 Angiographic results are often deceiving and trials have confirmed that OCT changes the initial PCI strategy in a significant number of cases.4 Case summary A 58-year-old, non-diabetic, non-hypertensive, tobacco-chewing man present