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  • Title: [Clinical significance of intracranial hemorrhage caused by cerebral arteriovenous malformations: with special reference to intraventricular hemorrhage].
    Author: Miyasaka Y, Tanaka R, Tokiwa K, Itikawa H, Suwa T, Takano S, Ohtaka H, Kurata A, Endo M, Saito M.
    Journal: No Shinkei Geka; 1989 Feb; 17(2):133-8. PubMed ID: 2786610.
    Abstract:
    Forty-two cases with intracranial hemorrhage caused by cerebral arteriovenous malformation (AVM), which was diagnosed by CT scan, were reviewed with regard to the clinical significance of intracranial hemorrhage, especially intraventricular hemorrhage (IVH). Twenty-one patients were defined as poor risk cases whose level of consciousness at admission was 100 to 300 according to the Japan Coma Scale, whereas the remaining 21 patients were defined as good risk cases. Surgical excision of AVM was undertaken in 35 out of the 42 cases. Urgent surgical removal of intracerebral hematoma and AVM within 24 hours following onset was undertaken in 11 cases. In 14 patients, urgent continuous ventricular drainage was carried out. The effects of the following factors on the level of consciousness at admission, and on the result of AVM treatment were investigated to clarify the clinical significance of intracranial hemorrhage; 1) cast formation of 3rd and/or 4th ventricle, 2) volume of intraventricular hematoma, 3) accompanying intracerebral hematoma and 4) acute hydrocephalus. It was confirmed that all these factors significantly contributed to the development of serious disturbance of consciousness in the acute stage following intracranial hemorrhage. For good risk cases, the rate of patients who showed a good recovery or only moderate disability according to the Glasgow Outcome Scale reached 91%, whereas for poor risk cases, it was only 43%. The presence of large intracerebral hematomas of more than 4 cm in diameter accompanied with IVH was significantly correlated with the result of AVM treatment. The presence or absence of cast formation of 3rd and/or 4th ventricle, volume of intraventricular hematoma and acute hydrocephalus were not significantly related to the result of AVM treatment.(ABSTRACT TRUNCATED AT 250 WORDS)
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