Assertion: dissection | /r/AtLocation | ascending aorta
Facets:
value: between 25%
type: OTHER
value: between 30% of patients
type: LOCATION
Source sentences:
text: In the Stanford classification system, dissections occurring in the ascending aorta are classified as type A dissections.
text: Once a dissection occurs in the ascending aorta, between 25% and 30% of patients die within hours, and the risk of death approaches 100% after a week without an operation.
text: Most dissections occur in the ascending aorta.