Comparison of arterial stiffness and microcirculatory changes following abdominal aortic aneurysm grafting.
AuthorsMoloney, M A
O' Donnell, D H
Casey, R G
Kavanagh, E G
Grace, P A
Bouchier-Hayes, D J
AffiliationDepartment of Vascular Surgery, Beaumont Hospital, Beaumont Road, Beaumont,, Dublin 9, Ireland. email@example.com
Aortic Aneurysm, Abdominal/*physiopathology/*surgery
MetadataShow full item record
CitationIr J Med Sci. 2011 Jun;180(2):375-8. Epub 2010 Nov 11.
JournalIrish journal of medical science
AbstractBACKGOUND: Abdominal aortic aneurysm (AAA) surgery provides a unique opportunity to study the impact of arterial stiffness on central haemodynamics, reflected in augmentation index (AI). The aneurysmal aorta is significantly stiffer than undilated age-matched aorta. AIM: We investigated whether replacement of an aneurysmal aorta with a compliant graft would result in a decrease in AI, which would thus decrease myocardial workload parameters. METHODS: Patients undergoing elective open or endovascular AAA repair were assessed with applanation tonometry and laser fluximetry pre-operatively, immediately and long-term post-operatively. RESULTS: Replacement of a small segment of abnormal conduit vessel resulted in improvements in AI, demonstrating that arterial stiffness can be surgically manipulated. CONCLUSIONS: These results reflect a decreased myocardial workload post-aortic grafting. This decrease in AI is important from a risk factor management perspective, and arterial stiffness should become a further recognised and screened for risk factor in patients with known aneurysmal disease.
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