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  • Title: [Cerebral ischemia (1)--Reversibility of ischemic lesion and CT findings].
    Author: Ujiie H, Kagawa M, Nakahara A, Satoh K, Aoki N, Kitamura K.
    Journal: No Shinkei Geka; 1988 Aug; 16(9):1023-8. PubMed ID: 3205363.
    Abstract:
    Two hundred and twenty-one patients with cerebral cerebral ischemic attack in the middle cerebral artery territory were investigated. Those patients manifested several clinical types, TIA: 31, stroke with full recovery: 50, minor completed stroke: 54 and major completed stroke: 86 cases. CT classification was made 3 weeks after the ischemic attack based on the characteristic arterial topography. We discussed in this paper what kind of ischemic lesion had greater possibility of recovery from ischemic lesion had greater possibility of recovery from ischemia focusing on the retrospective study of clinical symptoms, CT classification and angiographic findings. We also referred to the other factors influencing the reversibility of an ischemia such as lacunae and PVH (periventricular hypodensity). The extent of and LDA on CT scan closely correlated with clinical symptoms, CT classification and angiographic findings. We also referred to the other factors influencing the reversibility of an ischemia such as lacunae and PVH (periventricular hypodensity). The extent of an LDA on CT scan closely correlated with clinical types (Table 2). The reversibility of type I was excellent, however aged patients over 70 with PVH and ventricular dilatation developed permanent neurological impairment associated with dementia. The reversibility of a small infarction in the basal ganglia (type II) depended mainly on the involvement of the internal capsule. Infarction involving a cortex (type IV and type V) invariably resulted in permanent neurological deficits except for the rare cases with involvement of silent areas. CT classification of type III, so called demarcation zone infarction, developed various clinical types, and showed transient functional disturbance of the cortex without an infarction i the cortico-subcortical region.(ABSTRACT TRUNCATED AT 250 WORDS)
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