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  • Title: Comparison of Outcomes in DeBakey Type AI Versus AII Aortic Dissection.
    Author: Kohl LP, Isselbacher EM, Majahalme N, Evangelista A, Russo MJ, Hutchison S, Bossone E, Suzuki T, Pyeritz RE, Gleason TG, Conklin LD, Montgomery DG, Nienaber CA, Eagle KA, Harris KM.
    Journal: Am J Cardiol; 2018 Aug 15; 122(4):689-695. PubMed ID: 29970240.
    Abstract:
    The DeBakey classification divides type A acute aortic dissection (AAD) into type I and type II; the latter limited to the ascending aorta. We endeavored to examine differences in DeBakey groups in a contemporary registry. We divided 1,872 patients with noniatrogenic AAD from the International Registry of Acute Aortic Dissection into type I (n = 1691, 90.3%) and type II (n = 181, 9.7%). Patients with type II AAD were older. On presentation, patients with type I AAD reported more back and abdominal pain and were more likely to have pulse deficit. Intramural hematoma was more frequent in type II AAD. Most patients with both types were treated surgically. Lower rates of renal failure, coma, mesenteric and limb ischemia were noted in those with type II AAD. In-hospital death was less frequent (16.6% vs 22.5%) after type II AAD, a trend that did not reach significance. There was no difference in the incidence of new dissection, rapid aortic growth, late aortic intervention or survival at 5 years. In conclusion, AAD limited to the ascending aorta (DeBakey type II) appears to be associated with improved clinical outcomes compared with dissection that extend to the aortic arch or beyond. Although fewer dissection-related complications were noted in patients presenting with type II AAD, as was a trend toward reduced in-hospital mortality, 5-year survival and descending aortic sequelae are not reduced in this contemporary report from International Registry of Acute Aortic Dissection.
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