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  • Title: [Clinical variability of bilateral paramedian thalamic infarcts].
    Author: Martínez Pérez-Balsa A, Martí-Massó JF, Carrera N, Urtasun M.
    Journal: Rev Neurol; 1997 Sep; 25(145):1353-62. PubMed ID: 9377289.
    Abstract:
    INTRODUCTION: Thalamic infarcts in paramedian artery territory are seen fairly frequently owing to certain peculiarities of the vascularization of the thalamus. However, clinical diagnosis is usually difficult because of the many varieties and peculiarities of the symptomatology. MATERIAL AND METHODS: We present a review of twelve cases of bilateral paramedian infarcts of the thalamus seen in our Department of Neurology and in a private surgery. We analyze the symptoms and their relationship to the neuro-radiological findings. Finally we compare our observations with the descriptions published by other authors and seek and anatomo-functional relationship for each of the symptoms and signs observed. RESULTS: The usual clinical outline in our patients included disorders of consciousness, different types of oculomotor disorders and cerebellar symptoms, mainly of gait. Other less common findings were memory disorders and abnormal movements. In no case were there sensory changes and pyramidal signs were rare in the absence of significant extra-thalamic lesions. CONCLUSIONS: Our findings, although generally comparable to those described in the literature consulted, were somewhat different with regard to cerebellar symptoms and the absence of sensory and pyramidal signs. We also emphasize the marked differences seen between the individual patients in our series. A good knowledge of the possible clinical variants of these lesions is necessary for a correct initial diagnostic approach in the study of these patients.
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