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Racial differences in relation between carotid and radial augmentation index

Artery Research volume 4, pages 15–18 (2010)Cite this article

Abstract

Background

Augmented central artery wave reflection is a cardiovasculardisease risk factor. Augmentation index (AI) obtained from peripheral artery waveforms provides qualitatively similar information to AI from central artery waveforms. Little information is available, however, regarding the influence of racial difference in association between central and peripheral AI.

Methods

We studied 47 White adults (45 ± 17 yr, 20 women) and 94 age-matched Asian adults (45 ± 14 yr, 42 women).

Results

The White group was significantly tallerthan the Asian group, whereas there were no significant group differences in blood pressure and heart rate. Carotid and radial AI tended to be lower in White compared with Asian adults (P < 0.10 for both). Such tendency disappeared when the difference in height was taken into account usingANCOVA(P = 0.84 and P = 0.77, respectively). RadialAI was strongly and positively correlated with carotid AI in White adults (r = 0.75, P < 0.0001 ) as well as in Asian adults (r = 0.82, P < 0.0001 ). The slope and intercept of linear regression line between radial and carotid AI of White adults were highly comparable with those of Asian adults.

Conclusion

AI in the conveniently located peripheral vasculature may provide a surrogate measure of central AI irrespective of difference in race (e.g., Asian vs. White populations).

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Authors and Affiliations

  1. Institute for Human Science and Biomedical Engineering, National Institute of Advanced Industrial Science and Technology, Tsukuba Central 6, 305 8566, Tsukuba, Ibaraki, Japan

    Jun Sugawara, Hidehiko Komine & Mutsuko Yoshiwaza

  2. Cardiovascular Aging Research Laboratory, Department of Kinesiology and Health Education, University of Texas at Austin, Austin, TX, USA

    Jun Sugawara, Mutsuko Yoshiwaza, Takashi Tarumi & Hirofumi Tanaka

  3. Center for Advanced Research Alliance, University of Tsukuba, Tsukuba, Ibaraki, Japan

    Seiji Maeda

  4. Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan

    Mutsuko Yoshiwaza

Authors
  1. Jun Sugawara
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  2. Hidehiko Komine
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  3. Mutsuko Yoshiwaza
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  4. Takashi Tarumi
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  5. Seiji Maeda
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  6. Hirofumi Tanaka
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Corresponding author

Correspondence to Jun Sugawara.

Additional information

Grant support: JSPS Postdoctoral Fellowships for Research Abroad (JS) and NIH grant AG20966 (HT).

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This is an open access article distributed under the CC BY-NC license https://doi.org/creativecommons.org/licenses/by/4.0/.

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Sugawara, J., Komine, H., Yoshiwaza, M. et al. Racial differences in relation between carotid and radial augmentation index. Artery Res 4, 15–18 (2010). https://doi.org/10.1016/j.artres.2009.12.002

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  • DOI: https://doi.org/10.1016/j.artres.2009.12.002

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Artery Research

ISSN: 1876-4401

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