Artikel
The role of transcranial motor evoked potentials monitoring during surgery for intramedullary ependymoma
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Veröffentlicht: | 4. Juni 2012 |
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Gliederung
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Objective: The feasibility of motor evoked potentials (MEP) during surgery for intramedullary tumors has already been reported. However, it is unclear whether MEP monitoring contributes to extent of tumor removal or to functional outcome. Thus, the aim of this study is to determine the role of MEP monitoring during surgery for intramedullary tumors.
Methods: The extent of tumor removal and functional outcome (McCormick grade: 1–4) were compared between 2 groups of surgically treated each consisting of 17 consecutive patients with intramedullary ependymomas either with (Group A) or without (Group B) intraoperative MEP monitoring.
Results: The extent of resection was improved in Group A (gross-total removal: 67% vs 25% in Group B, subtotal removal: 22% vs 63% in Group B, partial removal: 11% vs 13% in Group B), but the groups showed no difference in terms of 1 year postoperative functional outcome.
Conclusions: For intramedullary ependymoma surgery, the use of intraoperative transcranial MEP monitoring can contribute to improvement of the extent of tumor removal without influencing 1 year postoperative functional outcome.