Key result
In 12 patients who developed type A acute aortic dissection, the average maximum ascending aortic diameter on CT within 1 year prior to onset was 44.3 ± 2.7 mm.
Why the study?
Type A acute aortic dissection occurs suddenly without clinical signs and frequently causes pre-treatment mortality, raising questions about whether aortic enlargement acts as a risk factor.
Is aortic enlargement a risk factor for type A acute aortic dissection?
Observational (n=12)
No
Is aortic enlargement a risk factor for type A acute aortic dissection?
Answers are grounded in this paper and cite their sources.
Patients who developed type A acute aortic dissection had an average maximum ascending aortic diameter of 44.3 mm prior to the event, suggesting careful management is needed for patients with moderate aortic enlargement.
Type A acute aortic dissection occurs suddenly, without any clinical sign and often takes the patient’s life before appropriate treatment can be provided. Herein, we report 12 patients who underwent computed tomography scan for assessment of other diseases less than 1 year before the onset of aortic dissection. We evaluated aortic diameter before the onset of aortic dissection. All patients had some risk of aortic dissection. The average maximum ascending aortic diameter was 44.3 ± 2.7 mm; range: 40 to 48 mm. Eleven patients underwent successful emergency surgery. However, 1 patient died before arrival at our hospital. Careful management is necessary for patients with aortic enlargement and risk of type A acute aortic dissection.
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Hata et al. (2019) conducted an observational in Type A acute aortic dissection (n=12). Aortic enlargement was evaluated on Maximum ascending aortic diameter prior to AAD onset. In 12 patients who developed type A acute aortic dissection, the average maximum ascending aortic diameter on CT within 1 year prior to onset was 44.3 ± 2.7 mm.
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