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2011•Journal of Investigative MedicineOpen access

Statin Therapy Reduces Growth of Abdominal Aortic Aneurysms

Wassef Karrowni, Saadeddine Dughman, Georges Pierre Hajj, Francis J. Miller

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Abstract

BACKGROUND: The aim of this study was to evaluate the influence of statins on the growth of small abdominal aortic aneurysms (AAAs). METHODS: We retrospectively examined AAA diameter in 211 patients who had undergone serial imaging surveillance. RESULTS: Patients treated with and without statins were similar regarding age, initial aneurysm size, diagnosis of diabetes and hypertension, and smoking history. Patients receiving statins had a decreased aneurysm growth rate compared with those patients not receiving statins (0.9 mm/y [interquartile range, -1.0 to +1.0] vs 3.2 mm/y [interquartile range, 2.0-4.9], P < 0.0001). This difference in the rate of growth was maintained after adjusting for potential confounding factors. CONCLUSIONS: To date, this is the one of the largest retrospective studies demonstrating an association between statin use and decreased growth rate of AAA.

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BACKGROUND: The aim of this study was to evaluate the influence of statins on the growth of small abdominal aortic aneurysms (AAAs). METHODS: We retrospectively examined AAA diameter in 211 patients who had undergone serial imaging surveillance. RESULTS: Patients treated with and without statins were similar regarding age, initial aneurysm size, diagnosis of diabetes and hypertension, and smoking history. Patients receiving statins had a decreased aneurysm growth rate compared with those patients not receiving statins (0.9 mm/y [interquartile range, -1.0 to +1.0] vs 3.2 mm/y [interquartile range, 2.0-4.9], P < 0.0001). This difference in the rate of growth was maintained after adjusting for potential confounding factors. CONCLUSIONS: To date, this is the one of the largest retrospective studies demonstrating an association between statin use and decreased growth rate of AAA.

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Available abstract

BACKGROUND: The aim of this study was to evaluate the influence of statins on the growth of small abdominal aortic aneurysms (AAAs). METHODS: We retrospectively examined AAA diameter in 211 patients who had undergone serial imaging surveillance. RESULTS: Patients treated with and without statins were similar regarding age, initial aneurysm size, diagnosis of diabetes and hypertension, and smoking history. Patients receiving statins had a decreased aneurysm growth rate compared with those patients not receiving statins (0.9 mm/y [interquartile range, -1.0 to +1.0] vs 3.2 mm/y [interquartile range, 2.0-4.9], P < 0.0001). This difference in the rate of growth was maintained after adjusting for potential confounding factors. CONCLUSIONS: To date, this is the one of the largest retrospective studies demonstrating an association between statin use and decreased growth rate of AAA.

Key concepts: Interquartile range, Medicine, Abdominal aortic aneurysm, Confounding, Statin, Diabetes mellitus, Retrospective cohort study, Internal medicine

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