Natural History of Spontaneous Coronary Artery Dissection With Spontaneous Angiographic Healing

摘要: Abstract Objectives Given the uncertainty regarding degree and prevalence of spontaneous healing following coronary artery dissection (SCAD), aim this study was to assess angiographic characteristics dissected segments in a large cohort patients with SCAD who underwent subsequent repeat angiography. Background is an uncommon yet important cause myocardial infarction women. Very little known about arteries. Methods Patients nonatherosclerotic followed prospectively at Vancouver General Hospital angiography were included study. Those percutaneous intervention for excluded. Baseline patient demographics in-hospital long-term cardiovascular events recorded. Angiographic index assessed by 2 experienced angiographers. Criteria as follows: 1) improvement stenosis severity from event; 2) residual stenosis  Results One hundred fifty-six 182 noncontiguous lesions included. The mean age 51.5 ± 8.7 years, 88.5% women, 83.3% Caucasian, 75.6% had fibromuscular dysplasia. All presented infarction. At angiography, type most commonly observed, 126 (69.2%); TIMI flow grade  Conclusions majority arteries affected heal spontaneously on apparent time dependency, vast having complete after 30 days event.