{Reference Type}: Journal Article
{Title}: Diameter changes of the thoracic aorta caused by acute type B aortic dissection.
{Author}: Shimamoto T;Komiya T;Matsuo T;
{Journal}: Asian Cardiovasc Thorac Ann
{Volume}: 32
{Issue}: 2
{Year}: 2024 Mar 19
暂无{DOI}: 10.1177/02184923231221893
{Abstract}: <B>BACKGROUND: </B>The impact of type B acute aortic dissection (TBAAD) on historical pre-TBAAD diameters of the thoracic aorta is rarely reported. The aim of this study was to assess the extent of changes in aortic diameters induced by dissection, measured with a computed tomography (CT) scan obtained before and after TBAAD.<BR><B>METHODS: </B>Between January 2004 and December 2014, CT angiography of 50 non-Marfan patients with nonbicuspid aortic valves diagnosed with TBAAD were compared to historical CTs on file.<BR><B>RESULTS: </B>The ascending aorta and proximal arch showed negligible change. The proximal, mid, and distal aorta diameters changed compared with predissected values (107.7 ± 4.8%, 109.3 ± 4.9%, and 105.7 ± 5.8%, respectively). Neither sex, false lumen status, or mural calcification, nor prior thoracoabdominal aortic ectasia, correlated with the diameter change. Age ≥80 years in the proximal descending aorta did correlate with the diameter change (110.7 ± 4.0% vs 106.1 ± 4.6% p = 0.01).<BR><B>CONCLUSIONS: </B>Although identifying predicting factors for an aortic diameter increase all along with the thoracic aorta was still challenging, the degree of diameter change by aortic dissection was 105.7% to 109.3% in descending thoracic aorta, most prominent in middle descending aorta.