Browsing by Author "Valenzuela Mangini, Raúl"

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    Potenciales evocados auditivos en el síndrome de Fisher. Caso clínico.
    (1991) Fantín Oneto, Aldo; Valenzuela Mangini, Raúl; Luco Franzoy, Cristián; Vicuña, X.; Schweitzer, M.
    A 15 year old patient developed ataxia 2 weeks after an upper respiratory infection. Absent reflexes, external ophthalmoplegia, bilateral ptosis, isochoric mydriasis and week photomotor reflexes (Bell's phenomenon) were noted. A slight increase in protein but not cell content of the CSF was observed. Miller-Fisher syndrome was diagnosed on clinical grounds and visual and auditory evoked potentials were explored and found to be normal. This is in complete agreement to the literature and indicates indemnity of the central nervous system in Miller-Fisher's syndrome. Peripheral nervous system abnormalities that have been identified by pathologic and radiologic studies may explain all of the alterations observed in this syndrome.
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    Síndrome del creciente temporal. Reporte de un caso y revisión de la literatura
    (2004) Mery C, V.; Mellado T., Patricio; Valenzuela Mangini, Raúl; Luco Franzoy, Cristián; Huete Lira, Isidro
    The temporal crescent syndrome or half-moon syndrome is a rare mono ocular retrochiasmatic visual field defect that can be correlated to a lesion along the contralateral parieto-occipital sulcus. This field defect may be missed in automated perimetry. We report a 45 years old man, consulting for sudden loss of the peripheral temporal field in his right eye. The magnetic resonance imaging and the spectroscopy studies confirmed an ischemic lesion on the left anterior occipital cortex. Control imaging studies six months later did not show changes in the lesion (Rev Méd Chile 2004; 132: 1523-6).