Clinical analysis of 28 cases with parasagittal meningiomas

【Objective】 To explore the micro-surgical treatment of parasagittal sinus meningiomas.【Method】 Between 2001 and 2007,clinical data of 28 patients with parasagittal sinus meningiomas microsurgery in our hospital were analyzed.【Results】 All patients with parasagittal sinus meningiomas in this group received microneurosurgery treatment.Simpson I,Ⅱand Ⅲgrade resection was achieved in 7(25%),19(67.9%) and 2(7.1%) of the 28 patients in this series respectively.Histological examination after operation revealed 24 benign(85.7%),and 4 atypical(14.3%).New nerves functional lesion(most shown as muscle weakness at different degree) occurred at 9 patients after operation,in which 5 patients were temporary(completely recovery in 3 months after operation),4 patients were permanent.The follow-up ranged from 2 to 26 months and there was no perioperative death.1 patient with Simpson Ⅲ resection recurred.【Conclusion】 Simpson I or Ⅱgrade resection ought to be performed for parasagittal sinus meningiomas.And the use of microneurosurgery in the treatment of parasagittal sinus meningiomas can reduce the operative injury to sagittal sinus,parietal vein of Rolando,Trolard Vein,important draining vein surrounding the tumor and important domain of the brain,reduce the appearance of postoperative complication,raise the ratio of complete resection,and improve the operation effect.