8
Introduction
Figure 5. Relative Risk of Aortic Dissection by Size Range
Relative
risk
of
aortic
dissection
(relative
to
asortas
≤3.4
cm)
Aortic size (cm)
8,000
6,000
4,000
2,000
0
≤3.4 3.5–3.9 4.0–4.4 ≥4.5
1
4.55
89.1
6,305.5
e relative risk of aortic dissection begins to increase appreciably at a diameter of 4.0 cm to 4.4
cm and then increases dramatically at a diameter of ≥4.5 cm. Originally published in Paruchuri,
et al. Cardiolog y. 2015;131:265-272
Table 3. Classification of Aortic Dissection Chronicity Based
on the 2020 SVS/STS Reporting Standards
Chronicity Time From Onset of Symptoms
Hyperacute <24 h
Acute 1–14 d
Subacute 15–90 d
Chronic >90 d
Adapted with permission from Springer Nature Customer Service Centre GmbH: Springer
Nature, Copyright 2015. Clough, et al. Nat Rev Cardiol. 2015;12:103-114.
