Why the study?
Acute aortic dissection is a time-critical surgical emergency, but no prior studies had examined Type-A AD in regional Australia, which faces large travel distances and limited resources.
Population
Population of the Hunter New England health district in regional New South Wales, Australia
Design
Retrospective epidemiological analysis
Key result
The prevalence of Type-A aortic dissection in regional New South Wales was 1.47 per 100,000 with a mortality rate of 2.12 per 100,000, which was lower than expected compared to previous global studies.
Authors
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Lower regional Type A dissection prevalence and mortality may reflect underdetection; leaves open need for prospective validation of geographic variation.
Observational (n=122)
No
Effect estimate: Prevalence 1.47 per 100,000; Mortality 2.12 per 100,000
In regional Australia, Type-A aortic dissection has a prevalence of 1.47 per 100,000 and a 30-day mortality of 14.75%, with combined smoking and hypertension significantly increasing mortality risk.
Rathnayake et al. (2023) conducted an observational in Acute Type-A Aortic Dissection (n=122). Acute Type-A Aortic Dissection was evaluated on Prevalence and mortality (Prevalence 1.47 per 100,000; Mortality 2.12 per 100,000). The prevalence of Type-A aortic dissection in regional New South Wales was 1.47 per 100,000 with a mortality rate of 2.12 per 100,000, which was lower than expected compared to previous global studies.