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Caloric‐induced nystagmus with isoelectric electroencephalogram
Author(s) -
Nayyar Manmohan,
Strobos Robert J.,
Singh Brij M.,
BrownWagner Marie,
Pucillo Anthony
Publication year - 1987
Publication title -
annals of neurology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 4.764
H-Index - 296
eISSN - 1531-8249
pISSN - 0364-5134
DOI - 10.1002/ana.410210118
Subject(s) - brainstem , nystagmus , reticular formation , caloric theory , vestibulo–ocular reflex , paramedian pontine reticular formation , reflex , vestibular system , medicine , reticular connective tissue , electroencephalography , audiology , neuroscience , psychology , anesthesia , anatomy , stimulation
Caloric vestibular testing induced nystagmus in a patient with an isoelectric electroencephalogram after cardiopulmonary arrest. This has been demonstrated previously in patients in a chronic persistent vegetative state with intact brainstem reflexes, but never in a patient with an isoelectric electroencephalogram. Animal studies indicate that the quick phase of nystagmus and horizontal saccades are generated in the paramedian pontine reticular formation. The present case supports the conclusion that caloric‐induced nystagmus originates in the brainstem in rudimentary form.