…classic aortic dissection, intramural haematoma (IMH), and penetrating atherosclerotic ulcer (PAU). Aortic dissection accounts for approximately 80%–90% of acute aortic syndromes, IMH for approximately…

Cardiology Emergency medicine Surgery & trauma Definition and Pathophysiology Aortic dissection is a major form of acute aortic syndrome (AAS), alongside intramural haematoma, penetrating atherosclerotic ulcer…

…by separation within the coronary arterial wall, usually through formation of an intramural haematoma that compresses the true lumen. The resulting reduction in coronary blood…

…of sympathetic innervation), coronary embolism, and spontaneous coronary artery dissection with or without intramural haematoma. Spontaneous coronary artery dissection is defined as spontaneous dissection of…

…with functional assessment. A central practical principle is that the visual severity of a stenosis does not reliably establish its haemodynamic importance. A lesion that…

…and an intramural course. An anomalous left coronary artery is less common but more malignant than an anomalous right coronary artery. Anomalous origin of a…

…characterizing the surface of atheroma; measuring fibrous cap thickness; distinguishing thrombus from plaque; evaluating occult plaque rupture; identifying spontaneous coronary dissection or intramural hematoma when…

…afterload also results in increased intramural pressure in the right ventricle, which is counteracted by dilatation of the ventricle. Dilatation of the right ventricle results…