Unrecordable pulsatile ocular blood flow may signify severe stenosis of the ipsilateral internal carotid artery

Y. Barkana, Alon Harris, L. Hefez, M. Zaritski, D. Chen, I. Avni

Research output: Contribution to journalArticle

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Abstract

Aim: To examine the relation between stenosis of the internal carotid artery (ICA) and pulsatile ocular blood flow (POBF). Methods: In 57 eyes of 30 patients who were referred for Doppler ultrasound examination of the ICA we measured POBF and analysed the correlation with degree of ipsilateral ICA stenosis. Results: There was a significant negative correlation between POBF and ipsilateral ICA stenosis (Pearson correlation coefficient, r = -0.516, p <0.0001). In 14 eyes POBF could not be measured by the OBF tonometer, and in 11 of these cases (79%) severe stenosis (>75%) of the ipsilateral ICA was present. When these eyes were excluded from analysis, there was no correlation between POBF and ICA stenosis (r = -0.02, p = 0.91). Among these 43 eyes in which POBF could be measured it ranged 667-2095 μl/min with a mean of 970.72 μl/min. Conclusion: Low or unrecordable POBF may signify severe stenosis of the internal carotid artery. POBF is not a direct reflection of ipsilateral ICA blood flow.

Original languageEnglish
Pages (from-to)1478-1480
Number of pages3
JournalBritish Journal of Ophthalmology
Volume87
Issue number12
DOIs
StatePublished - Dec 2003

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Carotid Stenosis
Internal Carotid Artery
Doppler Ultrasonography

ASJC Scopus subject areas

  • Ophthalmology

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Unrecordable pulsatile ocular blood flow may signify severe stenosis of the ipsilateral internal carotid artery. / Barkana, Y.; Harris, Alon; Hefez, L.; Zaritski, M.; Chen, D.; Avni, I.

In: British Journal of Ophthalmology, Vol. 87, No. 12, 12.2003, p. 1478-1480.

Research output: Contribution to journalArticle

Barkana, Y. ; Harris, Alon ; Hefez, L. ; Zaritski, M. ; Chen, D. ; Avni, I. / Unrecordable pulsatile ocular blood flow may signify severe stenosis of the ipsilateral internal carotid artery. In: British Journal of Ophthalmology. 2003 ; Vol. 87, No. 12. pp. 1478-1480.
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AU - Avni, I.

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