ABSTRACT
The incidence of TAA rupture has been described to be between 1 and 5 per 100,000 person-years.6,10,11 A more recent study,12 over a 15-year period among 177 patients with thoracic aortic disease, indicates there were 28 with TAA rupture (16%), and the annual age-and sex-adjusted incidence was 3.5 per 100,000 persons for TAA rupture (95% confidence interval, 2.2-4.9). Increases in TAA incidence as measured over the last several decades may be explained by enhanced emergency medical services, diagnostic modalities, and clinician awareness.12
