TITLE

Anti-Hu-associated brainstem encephalitis

AUTHOR(S)
Saiz, A.; Bruna, J.; Stourac, P.; Vigliani, M. C.; Giometto, B.; Grisold, W.; Honnorat, J.; Psimaras, D.; Voltz, R.; Graus, F.
PUB. DATE
April 2009
SOURCE
Journal of Neurology, Neurosurgery & Psychiatry;Apr2009, Vol. 80 Issue 4, p404
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Objective: A series of patients with anti-Hu-associated brainstem encephalitis is reviewed to better define the clinical presentation and to improve its recognition. Methods: Data were collected from 14 patients diagnosed by members of the Paraneoplastic Neurological Syndromes Euronetwork, and eight patients from the literature who presented with isolated brainstem encephalitis and had anti-Hu antibodies. Results: The median age of the 22 patients was 64 years (range 42-83), and 50% were men. All patients developed a subacute neurological syndrome, in days or weeks. Brain MRI was always normal. Mild cerebrospinal fluid pleocytosis was reported in only two patients. The following syndromes were identified on admission: A medullary syndrome was seen in 11 (50%) patients. Seven of them presented with dysphagia, dysarthria and central hypoventilation. The other four in addition of bulbar symptoms, without central hypoventilation, presented pontine manifestations. Six (27%) patients developed a pontine syndrome with paresis of the VI or VII cranial nerves, nystagmus, usually vertical, and gait ataxia. There was a rapid downward progression to the medulla in all patients. Five (23%) patients presented a pontomesencephalic syndrome with uni-or bilateral palsy of the III and VI cranial nerves and gait ataxia, but rapidly progressed to complete gaze paresis and medullary dysfunction. Conclusions: The study confirms the predominant medullary involvement but also shows that half of the patients present with clinical features that indicate an upper, mainly pontine, dysfunction before downward progression.
ACCESSION #
38021531

 

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