Influence of false lumen status on the prognosis of acute type A aortic dissection without urgent surgical treatment

Akihito Tanaka, Hideki Ishii, Susumu Suzuki, Tomoyuki Ota, Hideki Oshima, Akihiko Usui, Kimihiro Komori, Toyoaki Murohara

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1 Citation (Scopus)

Abstract

Aim: Recently, much attention has been focused on partial thrombosis of the false lumen in patients with acute aortic dissection. However, its effect on clinical outcomes in these patients, especially in case of acute type A aortic dissection, has not been clearly elucidated. This study evaluated the influence of the false lumen status, including partial thrombosis, on short-term clinical outcomes in acute type A aortic dissection patients without urgent surgical treatment. Methods: Sixty-two patients (29 males, mean age 73±13 years) with acute type A aortic dissection who did not receive urgent surgical treatment at four hospitals were enrolled. Patients were divided into three groups based on the false lumen status on enhanced computed tomography image (complete thrombosis, n =28; partial thrombosis, n =27; patent, n=7). Patients with partial thrombosis were further divided into two groups (thrombus-dominant, n=15; flow-dominant, n =12). Results: The short-term mortality rate (in-hospital and 30-day) was significantly higher in patients with a patent false lumen, while no significant difference was seen between the other two groups. Patients with flow-dominant partial thrombosis had significantly higher short-term mortality rate than those with thrombus-dominant partial thrombosis (in-hospital, p=0.001 and 30-day, p<0.001). Conclusions: The short-term mortality rate in acute type A aortic dissection patients without urgent surgical treatment was lower in patients with partial thrombosis of the false lumen than in those with a patent false lumen. Furthermore, patients with flow-dominant partial thrombosis had higher mortality rate than those with thrombus-dominant partial thrombosis.

Original languageEnglish
Pages (from-to)169-175
Number of pages7
JournalJournal of atherosclerosis and thrombosis
Volume24
Issue number2
DOIs
Publication statusPublished - 2017
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Internal Medicine
  • Cardiology and Cardiovascular Medicine
  • Biochemistry, medical

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