Microsurgical Treatment Of Parasagittal Meningiomas (28 Cases Report)

Objective: To discuss microsurgical operative treatment of parasagittal meningiomas and crucial points in operation, and introduce the microsurgical experience of improving the rate of total removal parasagittal meningiomas with minimal morbidity and mortality.Method: A series of 28 cases operated in our department was analysed restrospectively. There were 13 males, 15 females, with age between 26~68, mean age 47.3. CT and MRI were performed in supporting preoperative diagnosis and tumor localization, all patients were treated with microsurgical techniques and histologically verified meningiomas. The presenting features, operative details and complications were documented.Results: According to Simpson meningiomas resection system, Gradeâ… was achieved in 7 of 28 patients, Gradeâ…¡in 15, Gradeâ…¢in 2 and Gradeâ…£in 4, surgical effects were satisfying. There was no surgical mortality.Conclusions: Parasagittal meningiomas represents a difficult surgical challenge. Contemporary microsurgical techniques play an important role in the treatment of parasagittal meningiomas. The preoperative diagnosis results obtained by CT and MRI scan are helpful in selecting the proper approach, microsurgical operation is the best treatment to parasagittal meningiomas with less complications and high life qualities. Good understanding of the anatomy about superior sagittal sinus, application of microsurgical techniques can greatly increase total resection rate of tumor, avoid potential injury to adjacent important structures and reduce mortality. However, palliative operations should be carried out in some cases of tumors apparently invading important tissues such as superior sagittal sinus and important vessels.