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Evaluation of the "spasticity of conjugate gaze phenomenon" in unilateral cerebral lesions
Maranhão, Eliana Teixeira; Maranhão-Filho, Péricles; Lima, Marco Antonio.
  • Maranhão, Eliana Teixeira; UFRJ. National Cancer Institute. Department of Physical Therapy. Rio de Janeiro. BR
  • Maranhão-Filho, Péricles; National Cancer Institute. Department of Neurosurgery. Rio de Janeiro. BR
  • Lima, Marco Antonio; National Cancer Institute. Department of Neurosurgery. Rio de Janeiro. BR
Arq. neuropsiquiatr ; 65(2b): 440-442, jun. 2007. tab, ilus
Article in English | LILACS | ID: lil-456848
ABSTRACT
The spasticity of conjugate gaze phenomenon (SCG) is a subtle motor ocular sign that usually indicates unilateral acute cerebral lesion. We analyzed the sensitivity of this sign in a prospective blinded study using 57 patients. All patients had monohemispheric brain lesions without resting deviation of the eyes and no motor complaints. Fourteen individuals without cerebral lesions were included as controls. Patients and controls were submitted to a brain magnetic resonance image. We observed SCG in just 1/57 (sensitivity of 1.7 percent), while all controls had a normal Bell's phenomenon. We speculate that SCG may disappear over time and is not useful to diagnose a long-lasting unilateral brain lesion.
RESUMO
O fenômeno do "desvio conjugado espástico ocular" é um sinal motor ocular sutil que habitualmente indica lesões cerebrais mono-hemisféricas agudas. Avaliamos a sensibilidade deste sinal num estudo prospectivo cego em 57 pacientes. Todos os pacientes apresentavam lesões cerebrais mono-hemisféricas, ausência de queixas motoras ou de desvio conjugado dos olhos em repouso. Quatorze indivíduos sem lesão cerebral foram incluídos como controle. Pacientes e indivíduos controle foram submetidos a exame de ressonância magnética do crânio. Observamos o sinal do desvio conjugado espástico ocular em somente 1/57 pacientes (sensibilidade 1,7 por cento), enquanto todos os controles apresentaram o fenômeno de Bell. Especulamos que este sinal desaparece com o tempo, e que o mesmo não é útil para o diagnóstico de pacientes com lesões cerebrais monohemisféricas de longa duração.
Subject(s)
Full text: Available Index: LILACS (Americas) Main subject: Brain Neoplasms / Ocular Motility Disorders / Muscle Spasticity Type of study: Diagnostic study / Observational study / Risk factors Limits: Female / Humans / Male Language: English Journal: Arq. neuropsiquiatr Journal subject: Neurology / Psychiatry Year: 2007 Type: Article Affiliation country: Brazil Institution/Affiliation country: National Cancer Institute/BR / UFRJ/BR

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Full text: Available Index: LILACS (Americas) Main subject: Brain Neoplasms / Ocular Motility Disorders / Muscle Spasticity Type of study: Diagnostic study / Observational study / Risk factors Limits: Female / Humans / Male Language: English Journal: Arq. neuropsiquiatr Journal subject: Neurology / Psychiatry Year: 2007 Type: Article Affiliation country: Brazil Institution/Affiliation country: National Cancer Institute/BR / UFRJ/BR