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Translational Stroke Research

, Volume 9, Issue 5, pp 452–458 | Cite as

Intra-operative Video Characterization of Carotid Artery Pulsation Patterns in Case Series with Post-endarterectomy Hypertension and Hyperperfusion Syndrome

  • Yiming XiaoEmail author
  • Hassan Rivaz
  • Hidetoshi Kasuya
  • Suguru Yokosako
  • Cristina Mindru
  • Jeanne Teitelbaum
  • Denis Sirhan
  • David Sinclair
  • Mark Angle
  • Benjamin W. Y. Lo
Original Article

Abstract

Cerebral hyperperfusion syndrome (CHS) is a complication that can occur after carotid endarterectomy (CEA), the treatment of choice to decrease the subsequent risk of fatal or disabling stroke for patients with symptomatic severe stenosis of the carotid artery. Because of its rarity and complexity, the mechanism of the condition is still unclear, making its prevention via prediction and monitoring challenging. This is especially true during surgery, when multiple factors can induce physiological changes, including blood pressure and baroreceptor functions, which are crucial factors for post-CEA hypertension and CHS. Thus, with intra-operative videos taken by surgical microscopes, we employed a new video processing technique to magnify ordinarily invisible carotid artery pulsation patterns as rhythmic color fluctuations. We applied the technique for three CEA cases, two of which developed CHS with post-CEA hypertension. For those with CHS, abnormal pulsation patterns were detected at the site of the baroreceptors. The results suggested that intra-operative baroreceptor dysfunction can potentially be linked with post-operative hypertension, as well as the occurrence of CHS. Guided by the preliminary discovery, further investigation may help establish the introduced technique as a simple and contactless technique to help predict post-CEA hypertension and CHS in order to facilitate the management and understanding of the condition and improve the care of CEA.

Keywords

Carotid endarterectomy Image processing Surgical video Cerebral hyperperfusion syndrome Baroreceptor Hypertension 

Notes

Compliance with Ethical Standards

Conflicts of Interest

The authors declare that they have no conflict of interest.

Ethical Approval

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

Informed Consent

Informed consent was obtained from all participants included in the study.

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  • Yiming Xiao
    • 1
    • 2
    Email author
  • Hassan Rivaz
    • 1
    • 2
  • Hidetoshi Kasuya
    • 3
  • Suguru Yokosako
    • 3
  • Cristina Mindru
    • 4
  • Jeanne Teitelbaum
    • 4
  • Denis Sirhan
    • 4
  • David Sinclair
    • 4
  • Mark Angle
    • 4
  • Benjamin W. Y. Lo
    • 4
  1. 1.PERFORM CentreConcordia UniversityMontrealCanada
  2. 2.Department of Electrical and Computer EngineeringConcordia UniversityMontrealCanada
  3. 3.Department of NeurosurgeryTokyo Women’s Medical University Medical Center EastTokyoJapan
  4. 4.Montreal Neurological HospitalMontrealCanada

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