2002, Number 3
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Rev Med Inst Mex Seguro Soc 2002; 40 (3)
The One and a Half syndrome. Case Report
Salazar WE, Vargas BFJ
Language: Spanish
References: 9
Page: 189-192
PDF size: 147.63 Kb.
ABSTRACT
The one and a half syndrome uncommon. It may be caused by an occlusive thrombus in a single branch of the basilar artery, which produces an ischemic pontine infarction involving the para-median pontine reticular formation, the medial longitudinal fascicles, and the sixth nerve nuclei. It may be also the result of demyelinating disease, multiple sclerosis, hemorrhage, and myasthenia gravis. Clinically, this syndrome is characterized by conjugate gaze palsy and impaired adduction on looking at the other side of lesion. Because one and a half syndrome may be a predictor of the subsequent neurologic lesions, the physician should keep it in mind, in order to achieve early diagnosis and treatment.
REFERENCES
Seze J, Lucas C, Leclerk X, Leys D. One and a half syndrome in pontine infarcts I: MRT correlates. Neurology 1999;41(9):666-669.
Fauci AS, Braundwald E, Isselbacher KJ, Wilson JD, Martin JB, Kasper DL, Hauser SL, Longo DL, editors. Harrison’s Principles of Internal Medicine. Fourteenth edition. New York, USA: McGraw-Hill; 1998. p. 172.
He JH, Bang OY, Choy SA. Pure motor hemiplegia with conjugate lateral gaze palsy in pontine lacunar infarction. Yonsei Med J 1996;37(1):96-99.
Barinagarrementeria. Enfermedad vascular cerebral. Distrito Federal, México: Interamericana McGraw-Hill; 1997. p. 146-147.
Caplan L, Stroke. A clinical approach. Second edi-tion. Boston, USA: Butterworth-Heinemann; 1993. p. 255.
Brazis P, Masdeu J, Biller L. Localization in clinical neurology. Second edition. Boston, USA: Little Brown and Company; 1990. p. 165-167.
Anderson CA, Sandberg E, Fillai CM, Harris SL. One and a half syndrome with supranuclear facial weakness. Magnetic resonance image localization. Arch Neurol 1999;56(12):1509-1511.
Wolin MJ, Trent RG, Lavin PJ, Cornblath RT. Oculopalatal myoclonus after the one and a half syndrome with facial nerve palsy. Ophtalmology 1996;103(1):177-180.
Somerbide ID, Maxit MJ. Síndrome de uno y medio de Fisher y parálisis facial periférica como forma de presentación de la arteritis de células gigantes. Medicina 2000;60(2):245-248.