Unilateral loss of oculocephalic response in a patient with hemispheric cerebral hemorrhage

Unilateral loss of oculocephalic response in a patient with hemispheric cerebral hemorrhage:



Publication date: November 2020

Source: Clinical Neurology and Neurosurgery, Volume 198

Author(s): Tetsuya Akaishi, Toshiki Endo, Makoto Hasebe, Tadashi Ishii, Masashi Aoki



Highlights

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A comatose 70-year-old female patient with hemispheric cerebral hemorrhage without brainstem involvement was brought to the hospital.



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The patient presented with a unilateral loss of oculocephalic reflex on head rotation without conjugate eye deviation.



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This finding suggests that the input pathway from the vestibular nuclei to the paramedian pontine reticular formation (PPRF) is not independent from that from the frontal lobe.

The oculocephalic reflex develops within the first week of life and essentially represents a vestibulo-ocular reflex normally suppressed in a conscious individual that attempts to turn the head to fixate on an object. This test consists of the rapid rotation of the patient's head in a horizontal or vertical direction.Oct 17, 2018

What are findings of the oculocephalic reflex suggestive of ...