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An Assay to Detect Protection of the Retinal Vasculature from Diabetes-Related Death in Mice
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Retinopathy: variable clinical spectrum and post-endarterectomy changes.

M Hussain1, R Malik, M Zaman

  • 1Khyber Institute of Ophthalmic Medical Sciences, Hayatabad, Medical Complex, Peshawar, Pakistan. mahfoozhussain@hotmail.com

Journal of Ayub Medical College, Abbottabad : JAMC
|March 18, 2011
PubMed
Summary
This summary is machine-generated.

Carotid Artery Insufficiency Retinopathy (CAIR) is a rare sign of carotid artery disease. Carotid endarterectomy can resolve CAIR in selected patients, highlighting the importance of investigating ocular ischemia in carotid stenosis.

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Area of Science:

  • Ophthalmology
  • Vascular Surgery
  • Neurology

Background:

  • Carotid Artery Insufficiency Retinopathy (CAIR) is an uncommon indicator of carotid artery obstruction, often linked to severe internal carotid artery (ICA) stenosis.
  • This retinopathy results from chronic hypoxia affecting ocular tissues.
  • It is primarily observed in patients with complete or near-complete ICA occlusion.

Purpose of the Study:

  • To document the diverse clinical presentations of CAIR in patients with internal carotid artery stenosis.
  • To evaluate the effectiveness of carotid endarterectomy in resolving CAIR.

Main Methods:

  • Retrospective review of patient records with confirmed internal carotid artery stenosis.
  • Collection of demographic data, presenting symptoms, and associated systemic vascular diseases.
  • Analysis of retinopathy presentation and resolution post-intervention.

Main Results:

  • The study included 13 eyes from 10 patients (9:1 male to female ratio).
  • Clinical presentations varied widely, from scattered hemorrhages to ocular ischemic syndrome.
  • Carotid endarterectomy successfully resolved CAIR in 2 of 3 treated patients, with one experiencing bilateral improvement.

Conclusions:

  • Unilateral retinopathy warrants suspicion of CAIR and underlying carotid artery stenosis.
  • Asymptomatic carotid artery stenosis patients require screening for ocular ischemic signs.
  • Investigation for cardiovascular diseases is crucial for all CAIR patients.
  • Carotid endarterectomy is a viable treatment option for resolving CAIR in select cases.