大脳基底核部高血圧性脳内出血-CTによる血腫分類と予後-

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A series of 89 patients with hypertensive putaminal and thalamic hemorrhage diagnosed by CT during last 30 months in our institute is analyzed and is classified of them into each four types. This distinction based on the site, size of hematoma and degree of involving the neighbouring structures is well correlate with clinical course and we felt that is of value in detarming the prognosis. Our classification of the hypettensive putaminal and thalamic hemorrhage based on CT are shown as follows. Putaminal hemorrhage; Type 1: showing a relatively small hematoma measuring less than 3-cm in diameter and localized in the putamen or with extention to the part of the internal capsule. (P1) Type 2: showing hematoma 3-cm or greater in transverse diameter with or without evidence of intraventricular hemorrhage. (P2) 2a: extending into the part of the internal capsule. (P2a) 2b: anterior, posterior and lateral extention with destruction of the internal capsule. (P2b) Type 3: extending into the thalamus with destruction of the internal capsule and/or a large hematoma in the ventricles (ventricle tamponade). (P3) Thalamic hemorrhage; Type 1: localized in the internal or external nuclei. (T1) Type 2: expansion of hematoma in the thalamus and extention into the part of the internal capsule with or without evidence of intraventricular hemorrhage. (T2) 2a: mainly, latero-upper extention. (T2a) 2b: mainly, medio-lower extention. (T2b) Type 3: a large hematoma of anterior-posterior-lateral extention with destruction of the internal capsule and/or ventricle tamponade. (T3)

大脳基底核部高血圧性脳内出血-CTによる血腫分類と予後-

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