Augmentation Index Is Elevated in Aortic Aneurysm and Dissection

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Presentation transcript:

Augmentation Index Is Elevated in Aortic Aneurysm and Dissection Yasushige Shingu, MD, Norihiko Shiiya, MD, PhD, Tomonori Ooka, MD, PhD, Tsuyoshi Tachibana, MD, PhD, Suguru Kubota, MD, PhD, Satoshi Morita, PhD, Yoshiro Matsui, MD, PhD The Annals of Thoracic Surgery Volume 87, Issue 5, Pages 1373-1377 (May 2009) DOI: 10.1016/j.athoracsur.2009.02.049 Copyright © 2009 The Society of Thoracic Surgeons Terms and Conditions

Fig 1 Representative diameter change waveform and calculation formula of augmentation index. Diameter of first inflection point is defined as D1 and the next peak as D2. (AI = augmentation index; Dmax and Dmin = maximum and minimum diameter.) The Annals of Thoracic Surgery 2009 87, 1373-1377DOI: (10.1016/j.athoracsur.2009.02.049) Copyright © 2009 The Society of Thoracic Surgeons Terms and Conditions

Fig 2 Relationship between AI and age. By regression analysis in groups A and C, the coefficient of age was 0.983 (95% confidential interval: 0.505 to 1.462) and its p value was less than 0.001. (AI = augmentation index; ○ = group A; ● = group B; □ = group C. The Annals of Thoracic Surgery 2009 87, 1373-1377DOI: (10.1016/j.athoracsur.2009.02.049) Copyright © 2009 The Society of Thoracic Surgeons Terms and Conditions