Clinical and Neuroimaging Features of Chiari Type I Malformations With and Without Associated Syringomyelia
-
- 山崎 義矩
- 北里大学脳神経外科
-
- TACHIBANA Shigekuni
- Department of Neurosurgery, Kitasato University School of Medicine
-
- TAKANO Makoto
- Department of Neurosurgery, Kitasato University School of Medicine
-
- FUJII Kiyotaka
- Department of Neurosurgery, Kitasato University School of Medicine
この論文をさがす
抄録
The clinical and neuroimaging characteristics of 22 consecutive patients with Chiari type I malformations were evaluated to investigate the pathogenesis of syrinx formation. All patients underwent magnetic resonance imaging and x-ray tomography before surgery. The electric manometric Queckenstedt test was performed on 16 patients pre- and postoperatively. Syringomyelia was present in 17 patients and absent in five patients. All patients without syringomyelia suffered from foramen magnum compression syndrome, with a wider basal angle, more acute clivo-axial angle, shorter clivus, and more prominent tonsillar ectopia than patients with syringomyelia. Low brain stem position, basilar impression, and beaking of the cervicomedullary junction were also more prominent in patients without syringomyelia. Marked to complete block with the neck in flexed position by Queckenstedt test was present in all patients except one. Patients with Chiari malformation not associated with syringomyelia have more pronounced compression of the brain stem at the foramen magnum. Therefore, despite a block of the cerebrospinal fluid pathway at the foramen magnum, syrinx formation may be prevented by severe compression.
収録刊行物
-
- Neurologia medico-chirurgica
-
Neurologia medico-chirurgica 38 (9), 541-547, 1998
一般社団法人 日本脳神経外科学会
- Tweet
キーワード
詳細情報 詳細情報について
-
- CRID
- 1390001205052204800
-
- NII論文ID
- 110002277445
-
- NII書誌ID
- AN00358613
-
- ISSN
- 13498029
- 04708105
-
- PubMed
- 9805898
-
- 本文言語コード
- en
-
- データソース種別
-
- JaLC
- Crossref
- PubMed
- CiNii Articles
-
- 抄録ライセンスフラグ
- 使用不可