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[Comment] Thresholds in women with abdominal aortic aneurysm

Past studies have found that women have a lower prevalence of abdominal aortic aneurysm,1 develop abdominal aortic aneurysm at later ages,2 have higher rates of rupture,3 and have higher 30-day mortality and more complications from either open abdominal aortic aneurysm repair or endovascular repair (EVAR) than do men.4 These sex differences have raised questions about thresholds in women: what aortic diameter should be labelled an abdominal aortic aneurysm, and at what diameter should surgical intervention be considered? These were among the questions addressed for men by the UKSAT5 and ADAM6 trials, but these trials included only 198 women in total.