Outcomes

Outcomes

If type A dissection is untreated, the mortality rate is 50% within 48 hours and 75% within 1–2 weeks, whereas patients with type B dissections have a better prognosis. Surgical mortality is variable but is around 20–25% for proximal aortic dissection. The overall survival rate for patients leaving hospital, regardless of the type of dissection, is around 80% at 5 /uni00A0 years and 40% at 10 years.