Utility of a novel Exoscope, ORBEYE, in re-resection for recurrent brain tumor

Abstract

Background: Re-resections is one of the treatment options for recurrence brain tumors, including both benign and malignant brain tumors, such as meningioma and glioblastoma. Re-resection for recurrent brain tumor sometimes needs extension of original craniotomy. However, extending original craniotomy is troublesome and can easily damage the adhered brain tissue and reconstruct of bone flap sometimes cause cosmetic problems, thus ideal way to re-resect recurrent brain tumor is to use the same original craniotomy.However, when using an operative microscope, performing re-resections without extending craniotomy requires the surgeon to operate in an awkward position. A recently developed high-definition (4 K-HD) 3-D exoscope system, ORBEYE, can improve this problem. In this study, we analyzed the utility of 4 K-HD 3-D exoscope system, ORBEYE, for re-resecting recurrent brain tumor. Methods: We report 32 cases managed by re-resecting recurrent brain tumor by ORBEYE. Perioperative clinical, surgical, and radiographic data were retrospectively examined. Results: Re-resecting tumors for recurrent brain tumor by ORBEYE were successfully performed for all 32 resections, using ORBEYE, without any severe postoperative neurological deficit. In addition, we could avoid extending original craniotomy as much as possible by adjusting the ORBEYE camera angle. Conclusion: Re-resecting tumors for recurrent brain tumors by ORBEYE are feasible and can avoid extending original craniotomy as much as possible.

Keywords

• Re-resection
• Exoscope
• Neurosurgery
• Operating microscope
• Recurrent Brain Tumor