关键词: 神经导航, 侧脑室脑膜瘤, 显微外科

Abstract: Objective To discuss the main points of the resection of lateral ventricle meningioma by neuronavigation microsurgery,and to discuss the experience of prevention of postoperative complications.Methods We followed up 21 casesof lateral intraventricular meningioma from January 2013 to June 2021.The pariet al occipital cortex approach was used for microsurgical resection of the tumor,combined with neuronavigation assistance and intraoperative electrophysiological monitoring for functional protection.The results of tumor resection,pathological results,postoperative complications,postoperative recovery (Karnofsky score) and recurrence were observed.Results Of all the cases,total resection of tumor was performed in 20 cases and subtotal resection was performed in 1 case.The former symptoms were all improved,among which 4 cases had newly developed visual field defect after surgery,2 cases were improved after treatment.3 patients with hydrocephalus (1 improved after cvonservative treatment,2 improvedby ventriculoperitoneal shunt);Subcutaneous effusion and cerebrospinal fluid leakage in 6 cases were cured by lumbar cistern drainage.There were no new cases of hematoma and death in this group.The pathological report suggested meningioma in all patients,among whom WHO Grade II patients received conventional radiotherapy,and no obvious recurrence was found in the follow-up of 0.5~7 years.Conclusion Microsurgical resection of lateral ventricle under neuronavigation is effective and the improvement of microsurgical techniques can effectively avoid complications.

Key words: Neuronavigation, Meningioma of the lateral ventricle, Microsurgical resection