International Registry of Acute Aortic Dissection (IRAD) Type B dissection acute aortic dissection aorta thoracic endovascular aortic repair (TEVAR). Recently, a new subdivision type of Stanford classification emerged, trying to address the aortic arch dissections, called non-A/non-B type. In IRAD,10 the initial study was computed tomography (CT) in 61. The IRAD classification system for characterizing survival after aortic dissection. Thus, we present herein three areas in which IRAD data has recently advanced our understanding of acute type B aortic dissection: temporal classification especially for the subacute time period, risk stratification for identifying complicated cases, and thoracic endovascular aortic repair (TEVAR). Most patients require multiple imaging studies to diagnose and characterise aortic dissection. In the International Registry of Aortic Dissection (IRAD). Specifically in recent years, analyses of IRAD data have gone beyond simply characterizing the patient with acute type B aortic dissection and have attempted to identify the means by which the outcome of such a patient could be improved. Over the past two decades, IRAD publications have steadily increased our knowledge and understanding about aortic dissection. To further elucidate contemporary practice patterns and outcomes of aortic dissection, the International Registry of Acute Aortic Dissection (IRAD) was established in 1996. Important new findings regarding acute type B aortic dissection include data on differences between blacks and whites with acute aortic dissection, proposed changes to the current classification system, anatomic predictors of late outcomes, long-term results with thoracic endovascular aortic repair, as well as additional insights into the uncommon but potentially deadly complication of. Although this catastrophic cardiovascular condition was first described in the medical literature over two centuries ago, data on the optimal diagnostic and treatment modalities for type B dissection was slow to evolve throughout the latter half of the twentieth century, even as newer diagnostic techniques and management strategies became commonplace. Acute type B aortic dissection comprises approximately one-third of all aortic dissection cases.
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