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  • Title: [Two cases of cerebral embolism showing global aphasia without hemiparesis].
    Author: Kawahata N, Iriyama A, Narita M.
    Journal: Rinsho Shinkeigaku; 1991 Oct; 31(10):1062-9. PubMed ID: 1724951.
    Abstract:
    We report two cases of typical global aphasia without hemiparesis due to cerebral embolism. Case 1 was a 65-year-old right-handed man with a history of old myocardial infarction. No spontaneous speech was noted by his family. Neurological examination upon admission revealed confusional state, global aphasia, conjugate deviation to the left and slight drift of the outstretched right limbs. The right hemiparesis rapidly recovered after admission. CT scan performed on the second hospital day showed discrete low density areas in the left posterior frontal lobe and left temporo-parietal regions. The extent and severity of his global aphasia were unchanged. The second case was an 82-year-old right-handed man with a history of atrial fibrillation. He was admitted to our hospital one hour after he was found unable to speak. Neurological examination upon admission revealed global aphasia, conjugate deviation to the left and suspected right homonymous hemianopia by confrontation. There was no sign of hemiparesis. CT scan showed extensive low density area in the left temporo-parietal regions. In both cases, cerebral angiography failed to demonstrate any occlusion of intra- and extra-cranial blood vessels. IMP-SPECT showed a depression of cerebral blood flow in the left anterior and posterior watershed areas in case 1 and 2. In the literature, there have been 20 cases of global aphasia without hemiparesis including our two cases. In many cases, the initial symptom was inability or difficulty in speaking.(ABSTRACT TRUNCATED AT 250 WORDS)
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