Multimodal strategy for managing petroclival meningiomas

Takamasa Kayama, Yukihiko Sonoda, Kaori Sakurada, Shinya Sato, Shinjiro Saito

    研究成果: Article査読


    INTRODUCTION: To avoid any morbidity occuring after surgery for petroclival meningioma, we use the following treatment strategy: (1) the tumor should be left undetached in cases where there is no CSF space between the tumor and the surrounding structures to avoid a new deficit, (2) the residual volume should be reduced to less than 20 ml, small enough for radiosurgery. The result of our strategy presented. METHODS: During the past 10 years, we treated 13 patients with petroclival meningioma. The tumor volume ranged from 1.0 ml to 70 ml. 11 patients had neurological deficits preoperatively. 11 patients underwent an anterior petrosal approach while 2 patients underwent a far lateral approach according to the tumor attachment. RESULTS: The tumors were totally removed in 5 patients. The surgical removal successfully decreased the tumor size in 8 patients. The residual volume was small enough (less than 20 ml) just after surgical removal. Thus, radiosurgery was performed within 4 months after the open surgery in 7 patients. The residual tumor almost disappeared in 1 case and decreased in 4 cases. No new deficits occurred other than a transient facial weakness in 1 case. CONCLUSION: It is concluded that our planned surgical treatment for petroclival meningioma is safe and sure in terms of the patients' quality of life. The planned radiosurgery for the residual tumor immediately after the surgical removal is considered most effective.

    ジャーナルJapanese Journal of Neurosurgery
    出版ステータスPublished - 2005 7月

    ASJC Scopus subject areas

    • 外科
    • 臨床神経学


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