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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, Clough RE, et al.1 Copyright 2015.
STS indicates Society of Thoracic Surgeons; and SVS, Society for Vascular Surgery.
