International Registry of Acute Aortic Dissection (IRAD) Type B dissection acute aortic dissection aorta thoracic endovascular aortic repair (TEVAR). Document covering acute and chronic aortic diseases of the thoracic and abdominal aorta of the adult. 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). 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. The International Registry of Aortic Dissection (IRAD) described that the primary indication of emergency surgery is the prevention of the death from TAAD. Thus, the International Registry of Acute Aortic Dissection (IRAD) was established in 1996 to obtain up-to-date data on patients with acute aortic. These reporting standards incorporated data from the International Registry of Aortic Dissection (IRAD) and European Society of Cardiology (ESC) guidelines in their new classification of dissection chronicity: hyperacute, <24 hours acute, 1 to 14 days subacute, 15 to 90 days and chronic, >90 days.![]() 1 In the contemporary era, consensus guidelines have emphasized the need for earlier recognition and triage of aortic. Because of its low frequency and emergency nature, large randomized controlled trials are difficult to conduct (3). The mortality rate for type A acute aortic dissection (TAAAD) during the initial 24 to 48 hours after symptom onset is commonly described as 1 to 2 per hour, based on data from the 1950s, before medical therapy improved and cardiovascular surgery became routine. Over the past two decades, IRAD publications have steadily increased our knowledge and understanding about aortic dissection. Aortic dissection is a life-threatening yet infrequent diagnosis, estimated at about three cases in every 100,000 person years (1,2). To further elucidate contemporary practice patterns and outcomes of aortic dissection, the International Registry of Acute Aortic Dissection (IRAD) was established in 1996. 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. ![]() Caused by an intimal tear in the lumen of the aorta, it leads to the creation and. Acute type B aortic dissection comprises approximately one-third of all aortic dissection cases. Acute thoracic aortic dissection is part of the acute aortic syndrome triad.
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