Microsurgical Treatment of Parasagittal Meningioma with Invaded Superior Sagittal Sinus

Objective To explore the surgical treatment strategy of parasagittal meningioma invading superior sagittal sinus.Methods The clinical data of 14 patients with parasagittal meningioma invading the superior sagittal sinus from December 2003 to October 2011 in department of neurosurgery were analyzed retrospectively.8 cases were male,6 cases were female,the average age was 49(34-63 years old).9 cases were with intracranial pressure heighten symptoms,3 with epilepsy and 4 with hemiplegia positioning signs.Tumor site were unilateral.14 cases of parasagittal meningioma with the superior sagittal sinus invaded were treated by microsurgical resection.In 11 cases the wall of the tumor invaded superior sagittal sinus was removed and reestablished.In 3 cases the tumor invaded superior sagittal sinus was segmental resected.Results The operation and postoperative recovery of the 14 patients was satisfactory,no deaths.9 patients with intracranial pressure heighten,the postoperative symptoms were disappeared such as headache and vomiting,3 with epilepsy was alleviated,4 with hemiplegia positioning signs,the postoperative signs was significantly improved or returned to normal.All patients were followed up for 6 months to 5 years,1 case had the meningioma recurrence,and cured by reoperation,the rest 13 cases were not found recurrence.Conclusion The microscopically complete resection of the parasagittal meningioma,and segmental resect the tumor invaded superior sagittal sinus or remove and reestablish the wall of the invaded superior sagittal sinus at the same time using microsurgical technique could effectively treat parasagittal meningioma with the superior sagittal sinus invaded and improve outcomes of the patients.