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Geometry is destiny for carotid atherosclerotic plaques

The geometry of carotid arteries, both normal and narrowed, produces flow characteristics that predict the location of atherosclerosis and the site of plaque rupture. A recent study has shown that the upstream carotid plaque undergoes profound biochemical and apoptotic changes that are closely linked to the development of stroke symptoms.

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Figure 1: Flow characteristics observed in a glass model of carotid bifurcation, using hydrogen bubble flow.

References

  1. Cicha, I. et al. Carotid plaque vulnerability: a positive feedback between hemodynamic and biochemical mechanisms. Stroke 42, 3502–3510 (2011).

    Article  CAS  PubMed  Google Scholar 

  2. Zarins, C. K. et al. Carotid bifurcation atherosclerosis: quantitative correlation of plaque localization with flow velocity profiles and wall shear stress. Circ. Res. 53, 502–514 (1983).

    Article  CAS  PubMed  Google Scholar 

  3. Motomiya, M. & Karino, T. Flow patterns in the human carotid artery bifurcation. Stroke 15, 50–56 (1984).

    Article  CAS  PubMed  Google Scholar 

  4. Karino, T. & Goldsmith, H. L. Particle flow behavior in models of branching vessels. II. Effects of branching angle and diameter ratio on flow patterns. Biorheology 22, 87–104 (1985).

    Article  CAS  PubMed  Google Scholar 

  5. Fisher, M. & Fieman, S. Geometric factors of the bifurcation in carotid atherogenesis. Stroke 21, 267–271 (1990).

    Article  CAS  PubMed  Google Scholar 

  6. Lovett, J. K. & Rothwell, P. M. Site of carotid plaque ulceration in relation to direction of blood flow: an angiographic and pathological study. Cerebrovasc. Dis. 16, 369–375 (2003).

    Article  PubMed  Google Scholar 

  7. Fisher, M. et al. Carotid plaque pathology: thrombosis, ulceration, and stroke pathogenesis. Stroke 36, 253–257 (2005).

    Article  PubMed  Google Scholar 

  8. Azuma, T. & Fukushima, T. Flow patterns in stenotic blood vessel models. Biorheology 13, 337–355 (1976).

    Article  CAS  PubMed  Google Scholar 

  9. Gimbrone, M. A. Jr, Topper, J. N., Nagel, T., Anderson, K. R. & Garcia-Cardena, G. Endothelial dysfunction, hemodynamic forces, and atherogenesis. Ann. NY Acad. Sci. 902, 230–239; discussion 239–240 (2000).

    Article  CAS  PubMed  Google Scholar 

  10. Madani, A., Beletsky, V., Tamayo, A., Munoz, C. & Spence, J. D. High-risk asymptomatic carotid stenosis: ulceration on 3D ultrasound vs TCD microemboli. Neurology 77, 744–750 (2011).

    Article  CAS  PubMed  Google Scholar 

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Acknowledgements

The author is supported by NIH grant RO1 NS20989.

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Fisher, M. Geometry is destiny for carotid atherosclerotic plaques. Nat Rev Neurol 8, 127–129 (2012). https://doi.org/10.1038/nrneurol.2012.1

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