Equations Estimating the Predissected Diameter of the Ascending Aorta for Acute Type A Aortic Dissection
| Autor: | Masayuki Sakaki, Katsukiyo Kitabayashi, Takafumi Masai, Takashi Yamauchi, Hiroshi Takano, Toshiki Takahashi, Yoshiki Sawa, Yukitoshi Shirakawa, Naoki Asano, Koichi Toda |
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| Rok vydání: | 2019 |
| Předmět: |
Male
Pulmonary and Respiratory Medicine Aortic arch Time Factors Computed Tomography Angiography Aorta Thoracic Dissection (medical) 030204 cardiovascular system & hematology 03 medical and health sciences Aortic aneurysm 0302 clinical medicine Aneurysm Predictive Value of Tests Risk Factors medicine.artery Ascending aorta medicine Humans Aged Retrospective Studies Aortic dissection Aorta Aortic Aneurysm Thoracic business.industry Endovascular Procedures medicine.disease Circumference Aortic Dissection Treatment Outcome 030228 respiratory system Acute Disease Disease Progression Female Stents Surgery Cardiology and Cardiovascular Medicine Nuclear medicine business Algorithms Follow-Up Studies |
| Zdroj: | The Annals of Thoracic Surgery. 108:481-490 |
| ISSN: | 0003-4975 |
| DOI: | 10.1016/j.athoracsur.2019.02.046 |
| Popis: | A successful endovascular treatment for acute type A dissection has been recently reported. However, there has been no consensus regarding the appropriate stent graft size based on the estimated predissected aortic diameter for this pathology.We developed new equations for estimating the predissected ascending aorta and aortic arch by investigating computed tomography images that had been scanned less than 3 years before dissection. From 684 patients with type A AAD, 28 were matched for the study. We measured the predissected whole circumference length (pre-wCL), postdissected whole circumference length (post-wCL), postdissected true lumen circumference length (post-tCL), postdissected major diameter (post-Dma), and postdissected minor diameter (post-Dmi) of the acutely dissected aorta. This was followed by the calculation of (post-tCL + post-wCL)/2 and (post-Dma + post-Dmi)/2. Six equations (linear function) and modified equations were derived from each of the abovementioned parameters.Four equations (post-wCL, post-Dma, [post-tCL + post-wCL]/2, and [post-Dma + post-Dmi]/2) had nearly the same bias and accuracy (9.42 mm). For clinical use, we also developed one modified equation using the post-wCL (y = 0.9x) among four parameters because of its simplicity and decreased the possibility of measurement error. The biases of circumference length and accuracy were 5.5 ± 4.9 mm and 84.6%, respectively, and they improved to 4.4 ± 3.3 mm and 93.4% in cases with a ratio of post-tCL/post-wCL of 0.66 or more.Our newly developed equation can be used to calculate the predissected ascending aortic diameter and aortic arch diameter in cases of acute type A dissection. |
| Databáze: | OpenAIRE |
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