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Incontinência do choro e infarto protuberancial unilateral

Incontinence of crying and unilateral pontine infarct

Resumos

O presente estudo trata do caso de um paciente que apresentou incontinência do choro e hemiplegia direita por infarto ventroprotuberancial paramediano detectado pela RNM. O caráter circunscrito da lesão foi endossado pela normalidade dos potenciais evocados sômato-sensitivos e auditivos de curta-latência. Os episódios de choro desapareceram poucos dias depois do início do tratamento com doses baixas de imipramina. Discutimos o choro e riso patológicos como forma de incontinência da mímica resultante de desconexão límbico-motora, enfatizando a impropriedade de incluí-los na síndrome pseudobulbar, uma vez que dependem de correlatos anatômicos e funcionais distintos.

síndrome pseudobulbar; choro e riso patológico; hemiplegia motora pura; imipramina


A 64-year-old man presented with pathologic crying and right hemiplegia due to a unilateral pontine infarct from probable branch disease of the basilar artery. The circumscribed nature of the lesion was supported by MRI and short-latency evoked potentials. The weeping spells ceased after a few days of imipramine in low doses. Pathologic laughing and crying can be viewed as a limbic-motor disconnection syndrome, in which the faciovocal motor system is released from forebrain afferents carrying information of emotional content. The inclusion of pathologic laughing and crying in the syndrome pseudobulbar palsy is inaccurate and misleading, since each is related to distinct functional and anatomic systems intrinsic to the human brainstem.

pseudobulbar paralysis; pathologic laughing and crying; pure motor hemiplegia; imipramine


Incontinência do choro e infarto protuberancial unilateral

Incontinence of crying and unilateral pontine infarct

Ricardo de Oliveira-SouzaI; Wagner Martignoni de FigueiredoII; Pedro ângelo AndreiuoloIII

INeurologista, Professor Assistente, Serviço de Clínica Médica C (Prof. Omar da Rosa Santos), Hospital Universitário Gaffrée e Guinle, UNI-RIO (HUGG-UNI-RIO)

IIClínico Geral, Professor Adjunto, Clínica Médica C (Prof. Omar da Rosa Santos), HUGG -UNI RIO

IIIRadiologista, Hospital da Beneficiência Portuguesa (Niterói, RJ) e X LABS (RJ)

RESUMO

O presente estudo trata do caso de um paciente que apresentou incontinência do choro e hemiplegia direita por infarto ventroprotuberancial paramediano detectado pela RNM. O caráter circunscrito da lesão foi endossado pela normalidade dos potenciais evocados sômato-sensitivos e auditivos de curta-latência. Os episódios de choro desapareceram poucos dias depois do início do tratamento com doses baixas de imipramina. Discutimos o choro e riso patológicos como forma de incontinência da mímica resultante de desconexão límbico-motora, enfatizando a impropriedade de incluí-los na síndrome pseudobulbar, uma vez que dependem de correlatos anatômicos e funcionais distintos.

Palavras-chave: síndrome pseudobulbar, choro e riso patológico, hemiplegia motora pura, imipramina.

SUMMARY

A 64-year-old man presented with pathologic crying and right hemiplegia due to a unilateral pontine infarct from probable branch disease of the basilar artery. The circumscribed nature of the lesion was supported by MRI and short-latency evoked potentials. The weeping spells ceased after a few days of imipramine in low doses. Pathologic laughing and crying can be viewed as a limbic-motor disconnection syndrome, in which the faciovocal motor system is released from forebrain afferents carrying information of emotional content. The inclusion of pathologic laughing and crying in the syndrome pseudobulbar palsy is inaccurate and misleading, since each is related to distinct functional and anatomic systems intrinsic to the human brainstem.

Key words:pseudobulbar paralysis, pathologic laughing and crying, pure motor hemiplegia, imipramine.

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Agradecimento - Agradecemos aos Drs. Dayse Lúcia Gusmão pelas críticas ao manuscrito, Andreas Manger, pelo texto de Magnus (Referência 38) e Maurício Klajnberg, pelos exames eletrofisiológicos; à Prof. Marlene Soares Dos Santos pela revisão do resumo em inglês e aos funcionários das bibliotecas do Instituto Oswaldo Cruz (IOC-MS) e do Centro de Ciências da Saúde da Universidade Federal do Rio de Janeiro (CCS-UFRJ), pela eficiência na obtenção dos textos originais.

Aceite: 13-março-1995.

Dr. Ricardo de Oliveira Souza - Rua General Belford 226 - 20961-000 Rio de Janeiro RJ - Brasil.

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Datas de Publicação

  • Publicação nesta coleção
    20 Dez 2010
  • Data do Fascículo
    Set 1995
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