Prevalence of carotid siphon stenosis in patients referred for cerebrovascular evaluation

Joseph P. Hughes, Gary R. Bowman, Rick Dubin, Terence A. Cochran, Francis J. Porreca, Denise Kalisz, Michael P. Rush

Research output: Contribution to journalArticle

Abstract

Introduction. - The carotid siphon is second only to the carotid bifurcation in the prevalence of hemodynamically significant atherosclerotic plaque formation, yet few non-invasive vascular laboratories report interrogation of this region during routine noninvasive vascular evaluations. The purpose of this investigation was to determine the prevalence of carotid siphon stenosis in patients referred for noninvasive cerebrovascular evaluation. Materials and Methods. - During a 2-month period, 178 patients (94 male, 84 female, mean age, 71.8 years) were referred to the vascular laboratory for cerebrovascular evaluation, which included interrogation of the extracranial carotid, vertebral, and subclavian arteries as well as the intracranial ophthalmic artery and carotid siphon. All intracranial examinations were performed using a phased array imaging transducer (2-4 MHz). Results. - Ten patients (6%, 10/178) were found to have hemodynamically significant carotid siphon stenosis. There was a statistically significant association between the presence of carotid siphon stenosis and cervical bruit (p ≤ 0.05), follow-up of known extracranial carotid artery atherosclerosis (p ≤ 0.001), and a combination of hypertension, hyperlipidemia, and coronary artery disease (p ≤ 0.01). Conclusion. - Investigation of the carotid siphon is worthwhile when performed in conjunction with extracranial carotid duplex examinations. Siphon lesions detected during the cerebrovascular examination, especially in those with cervical bruits, known extracranial atherosclerotic disease, and combinations of risk factors, may affect medical or interventional therapy and can lead to a reduction in neurovascular events.

Original languageEnglish (US)
Pages (from-to)97-102
Number of pages6
JournalJournal for Vascular Ultrasound
Volume31
Issue number2
StatePublished - Jun 2007
Externally publishedYes

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Carotid Stenosis
Blood Vessels
Carotid Arteries
Ophthalmic Artery
Carotid Artery Diseases
Subclavian Artery
Vertebral Artery
Atherosclerotic Plaques
Hyperlipidemias
Transducers
Coronary Artery Disease
Hypertension
Therapeutics

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine
  • Radiology Nuclear Medicine and imaging

Cite this

Hughes, J. P., Bowman, G. R., Dubin, R., Cochran, T. A., Porreca, F. J., Kalisz, D., & Rush, M. P. (2007). Prevalence of carotid siphon stenosis in patients referred for cerebrovascular evaluation. Journal for Vascular Ultrasound, 31(2), 97-102.

Prevalence of carotid siphon stenosis in patients referred for cerebrovascular evaluation. / Hughes, Joseph P.; Bowman, Gary R.; Dubin, Rick; Cochran, Terence A.; Porreca, Francis J.; Kalisz, Denise; Rush, Michael P.

In: Journal for Vascular Ultrasound, Vol. 31, No. 2, 06.2007, p. 97-102.

Research output: Contribution to journalArticle

Hughes, JP, Bowman, GR, Dubin, R, Cochran, TA, Porreca, FJ, Kalisz, D & Rush, MP 2007, 'Prevalence of carotid siphon stenosis in patients referred for cerebrovascular evaluation', Journal for Vascular Ultrasound, vol. 31, no. 2, pp. 97-102.
Hughes JP, Bowman GR, Dubin R, Cochran TA, Porreca FJ, Kalisz D et al. Prevalence of carotid siphon stenosis in patients referred for cerebrovascular evaluation. Journal for Vascular Ultrasound. 2007 Jun;31(2):97-102.
Hughes, Joseph P. ; Bowman, Gary R. ; Dubin, Rick ; Cochran, Terence A. ; Porreca, Francis J. ; Kalisz, Denise ; Rush, Michael P. / Prevalence of carotid siphon stenosis in patients referred for cerebrovascular evaluation. In: Journal for Vascular Ultrasound. 2007 ; Vol. 31, No. 2. pp. 97-102.
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