Parasagittal Meningiomas: Surgery & Postoperative Complications.

Seo, Bo Ra; Moon, Kyung Sub; Jung, Shin; Kang, Sam Suk

Original Article

Journal of Korean Neurosurgical Society 2003;33(4): 358-362.

Bo Ra Seo, Kyung Sub Moon, Shin Jung, Sam Suk Kang

Department of Neurosurgery, Chonnam National University Hospital & Medical School, Gwangju, Korea. sjung@chonnam.ac.kr

ABSTRACT

OBJECTIVE
The authors report the evaluation of the surgical outcomes and postoperative complications for the 39 cases of parasagittal meningioma. METHODS: Thirty-nine patients have undergone operations for parasagittal meningioma between March 1994 and March 2002. The medical records and neuroimaging studies of thirty-nine patients were surveyed retrospectively to find out the perioperative clinical status, radiologic findings, operative methods, and postoperative complications. RESULTS: Preoperative symptoms were motor weakness(12), seizure(11), headache(11) and so on. The parasagittal meningioma was classified into lateral attachment(27), partial occlusion(4) or total occlusion(8) according to the degree of infiltration and into anterior one third(7), middle one third(28) or posterior one third(4) from the viewpoint of the origin site. The degree of tumor removal was classified into Simpson Grade: Grade I(13), Grade II(24), Grade III(2). Suture of the opened sinus was done in seven patients going through an operations. Four patients of them underwent sinus opening for mass removal and the others due to operative injury. Total removal of the sinus segment was carried out in six patients. The draining veins of six patients got injuried, those of four patients and the others respectively were coagulated and sutured. Postoperative complications were motor weakness(11), CSF leakage(9), seizure(1) and hemorrhage(1). CONCLUSION: However, most of the weakness is transient, the preservation of intracranial collateral circulation is important to minimize the motor weakness. The effort for complete tumor removal is required in parasagittal meningioma to take recurrence into account.

Key Words: Parasagittal meningioma; Surgery; Complication; Motor weakness