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Recent advancement in brain edema study after intracerebral hemorrhage:acute and subacute Nobuyuki Kawai 1 , Takehiro Nakamura 1 , Seigo Nagao 1 1Department of Neurological Surgery, Kagawa University School of Medicine Keyword: 血腫吸引除去術 , トロンビン , ヘモグロビン , マトリックス分解酵素 pp.249-257
Published Date 2006/4/10
DOI https://doi.org/10.11477/mf.1431100133
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A number of mechanisms may be involved in the brain edema formation after an intracerebral hemorrhage(ICH). It was believed that brain edema after ICH was due to local pressure compressing the microcirculation and producing ischemia in the region around the hematoma. However, there is no experimental evidence that the degree or duration of hypoperfusion around the hematoma is sufficient to produce ischemic brain damage. Attention has later focused on the direct role of the biochemical substances from an intracerebral blood clot in generating brain edema. At least two phases of edema formation are involved in ICH. These include an acute phase(first 2 days)involving the activation of the coagulation cascade and thrombin formation and a subacute phase(after 3 days)involving red blood cell lysis and hemoglobin-induced neuronal toxicity. Inflammatory reactions including activation of the complimentary system and expression of the matrix metalloproteinases in the brain parenchyma also play an important role in ICH-related brain edema formation. Animal models indicate that a number of compounds are capable to reduce the brain edema formation after ICH. Furthermore, hematoma removal by stereotactic hematoma aspiration may be one of the best strategies to minimize the brain injury and brain edema formation after ICH.


Copyright © 2006, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1243 印刷版ISSN 0001-8724 医学書院

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