Occipital cortical infarction complicating respiratory failure.

Area of Science:

• Neurology
• Neuroimaging
• Ophthalmology

Background:

• Respiratory failure can lead to severe systemic hypoxia.
• Hypoxia poses a significant risk to brain structures, particularly the cerebral cortex.
• Occipital lobe involvement in hypoxic injury is a known but less common manifestation.

Observation:

• Two patients experienced bilateral occipital cortical infarction subsequent to respiratory failure.
• The patients presented with varying precipitating factors, clinical symptoms, and ophthalmologic findings.
• Age differences between the patients did not preclude the observed neurological outcome.

Findings:

• Computed Tomography (CT) scanning studies provided evidence of hypoxic effects on the occipital cortex.
• Despite diverse clinical presentations, the underlying hypoxic insult to the cortex appeared consistent.
• Bilateral occipital infarction highlights a specific pattern of brain injury secondary to severe hypoxia.

Implications:

• This case series underscores the vulnerability of the occipital cortex to hypoxic-ischemic events.
• Understanding these patterns aids in diagnosing and managing neurological deficits post-respiratory failure.
• Ophthalmologic and neurological assessments are crucial for identifying cortical damage in affected patients.