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Visual loss after coronary artery bypass surgery.

Saudi medical journal·2001
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Visual loss after coronary artery bypass surgery.

R I Shaaban1, W M Asfour

  • 1Department of Ophthalmology, King Hussein Medical Center, Royal Medical Services, Amman, Jordan.

Neurosciences (Riyadh, Saudi Arabia)
|November 27, 2013
PubMed
Summary

Sudden vision loss after heart surgery can indicate non-arteritic anterior ischemic optic neuropathy. This condition results from optic nerve head blood vessel blockage, with factors like crowded optic discs potentially contributing.

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Area of Science:

  • Ophthalmology
  • Neurology
  • Cardiovascular Surgery

Background:

  • Anterior ischemic optic neuropathy (AION) involves microvascular occlusion of the optic nerve head.
  • Key subtypes include arteritic, non-arteritic, and autoimmune AION.
  • Post-coronary artery bypass graft (CABG) AION is rarely documented.

Purpose of the Study:

  • To report a case of non-arteritic anterior ischemic optic neuropathy (NAION) following coronary artery bypass graft (CABG) surgery.
  • To identify potential predisposing factors in a patient with diabetes and hypertension.

Main Methods:

  • Case report of a 63-year-old male patient.
  • Clinical diagnosis of NAION following CABG.
  • Evaluation of patient's medical history and predisposing factors.

Main Results:

  • The patient experienced sudden visual loss postoperatively.
  • Diagnosis confirmed as non-arteritic anterior ischemic optic neuropathy (NAION).
  • Identified predisposing factors included a crowded optic disc and internal carotid artery stenosis.

Conclusions:

  • Non-arteritic anterior ischemic optic neuropathy (NAION) can occur after coronary artery bypass graft (CABG) surgery.
  • Crowded optic discs and carotid artery stenosis may increase risk in susceptible individuals.
  • Highlights the importance of considering NAION in postoperative visual disturbances.