2017年2月22日 · SCAD is an important cause of ACS, particularly in young women without traditional cardiovascular risk factors. The pathophysiology and treatment are different to ACS caused by plaque rupture or erosion. Contrast staining of the vessel wall (Type 1 SCAD) is the most recognised finding on coronary angiography.

2018年2月22日 · In the Saw angiographic SCAD classification, type 1 refers to the classic appearance of multiple radiolucent lumens or arterial wall contrast staining .

2021年8月17日 · The Yip-Saw angiographic classification of SCAD divides it into three types: In type 1 SCAD, contrast penetrates into the false lumen and there may be dye ‘hang up.’. Less than one-third of SCAD presents as type 1 and can suggest late presentation. Type 1 is less likely to progress and best managed conservatively.

Spontaneous coronary artery dissection can be classified based on angiographic appearance into type 1 (evident arterial wall stain with multiple radiolucent lumens), type 2 (diffuse smooth stenosis of varying severity), and type 3 lesions (focal or tubular stenosis mimicking atherosclerosis).

2024年5月10日 · In type 1 SCAD, contrast is visible in both the true and false lumens giving the pathognomonic appearance of multiple lumens on angiography. In type 2 and type 3 SCAD, contrast can be seen...

2020年12月9日 · Type 1 spontaneous coronary-artery dissection (SCAD) has the pathognomonic angiographic appearance of an arterial dissection, including multiple radiolucent lumens due...

Type 1 SCAD is associated with a lower risk for clinical progression (if managed conservatively) and of PCI complications (if managed with revascularization) (6,28). Types 2 and 3 SCAD describe different appearances of intramural hematoma.

2019年12月20日 · SCAD is defined as a non-iatrogenic, non-traumatic separation of the coronary artery wall, not associated with atherosclerosis. 1 The predominant mechanism of myocardial injury is coronary artery obstruction caused by an intramural hematoma (IMH) or intimal disruption compromising the true lumen at the site of dissection. 2 The original studies ...

Angiographic Variants of SCAD: Appearance. There are three distinct angiographic appearances and patterns of SCAD that can be characterized: 1. Angiographic Variant Type 1: Evident Arterial Wall Stain. This is the pathognomonic angiographic appearance of SCAD with contrast dye staining of arterial wall with multiple radiolucent lumen.

2019年6月2日 · Angiographically, three types of SCAD have been identified (Figure 1). 5 Type 1 SCAD is identified by contrast dye staining which reveals double or multiple radiolucent lumens separated by radiolucent flap. Type 2 SCAD is identified by diffuse luminal narrowing or stenosis (usually >20 mm) of the coronary artery without dissection.