Abdominal Aortic Aneurysm Research Today is a free monthly online journal that collates and summarizes the latest research about Abdominal Aortic Aneurysm, including details on aaa (abdominal aortic aneurism), cardiac disease, treatment, symptoms, surgery. | ||||||||
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Influence of sex on expansion rate of abdominal aortic aneurysms.Mofidi R, Goldie VJ, Kelman J, Dawson AR, Murie JA, Chalmers RT Department of Vascular Surgery, Royal Infirmary of Edinburgh, Old Dalkeith Road, Edinburgh EH16 4SA, UK. BACKGROUND: The UK Small Aneurysm Trial suggested that female sex is an independent risk factor for rupture of abdominal aortic aneurysm (AAA). This study assessed the effect of sex on the growth rate of AAA. METHODS: Between January 1985 and August 2005 all patients who were referred to the Royal Infirmary of Edinburgh with an AAA who were not considered for early aneurysm repair were assessed by serial abdominal ultrasonography. Maximum anteroposterior and transverse diameters of the AAAs were measured. RESULTS: A total of 1255 patients (824 men and 431 women) were followed up for a median of 30 (range 6-185) months. A median of six examinations (range 2-37) was performed for each patient. Median diameter on initial examination was 41 (range 25-83) mm. Median growth rate overall was 2.79 (range - 4.80-37.02) mm per year. Median growth rate of AAA was significantly greater in women than men (3.67 (range - 1.2-37.02) versus 2.03 (range - 4.80-21.00) mm per year; P < 0.01). Weighted linear regression analysis revealed that large initial anteroposterior AAA diameter and female sex were significant predictors of faster aneurysm growth rate (P < 0.001 and P = 0.006 respectively). CONCLUSION: The growth rate of AAA was significantly greater in women than in men. This may have implications for the frequency of follow-up and timing of repair of AAA in women. Published 28 February 2007 in Br J Surg, 94(3): 310-4.
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