Management of Downward Gaze Palsy in Intracerebral Hemorrhage (ICH)

Immediate Assessment and Neuroimaging

• The American College of Radiology recommends immediate neuroimaging with brain MRI, including high-resolution T2-weighted sequences of the brainstem, to confirm the extent of midbrain-thalamic involvement in patients with downward gaze palsy 1
• Downward gaze palsy is a specific indicator of central pathology requiring immediate investigation, even if the remainder of the neurological examination appears normal, according to the American Academy of Neurology 1
• Urgent MRI brain with high-resolution T2-weighted sequences of the brainstem is essential to confirm bilateral thalamic or midbrain infarction, as standard CT may miss small thalamic-mesencephalic lesions 1

Acute Phase Management Protocol

Stroke Management

• The American Heart Association recommends applying standard acute ischemic stroke management, including consideration of thrombolysis if within the appropriate time window and no contraindications exist, in patients with downward gaze palsy 1
• The Neurocritical Care Society suggests maintaining cerebral perfusion pressure >60 mmHg through volume replacement and/or catecholamines if necessary 1
• The American Diabetes Association recommends implementing strict blood glucose control, treatment of hyperthermia, and early enteral nutrition in patients with downward gaze palsy 1

Neurological Assessment

• The American Academy of Neurology recommends assessing both vertical saccades and smooth pursuit, vestibular eye movements, and horizontal gaze to distinguish supranuclear from nuclear causes of downward gaze palsy 1

Management of Symptomatic Diplopia

Optical Management Options

• The American Academy of Ophthalmology suggests that small vertical deviations can be managed with prism glasses, though lateral incomitance may limit successful implementation 1, 2

When Surgical Intervention May Be Considered

• The American Academy of Ophthalmology states that surgery is rarely indicated in acute central downward gaze palsy, as the primary pathology is supranuclear rather than muscular 2, 3

Rehabilitation Phase

• The American Physical Therapy Association recommends initiating early rehabilitation in the intensive care unit once the patient is stable 1
• The Neurocritical Care Society suggests that progressive mobilization should begin after resolution of the acute phase and absence of signs of significant intracranial hypertension 1

Critical Pitfalls to Avoid

• The American Academy of Neurology advises not to assume a benign etiology, as vertical gaze palsy mandates immediate neuroimaging regardless of otherwise normal examination 1
• The American College of Radiology warns not to delay high-resolution brainstem MRI, as standard CT is insufficient for detecting small midbrain-thalamic lesions 1
• The American Academy of Ophthalmology recommends not to pursue surgical correction of extraocular muscles in the acute phase, as the pathology is supranuclear and may improve with time 1