Aipplication of intraoperative indocaynine green videography in surgical treatment of spinal hemangioblastoma

Abstract

Objective To discuss the clinical significance of indocaynine green (ICG) videography in the surgical treatment of spinal hemangioblastoma (SH).Method Nine patients with SH underwent posterior midline approach to remove the tumors.By taking the ICG videoangiography,the boundary of the tumors,the feeding arteries and the draining veins were observed,and then the feeding arteries,the tumors and the draining veins were resected sequentially.Results The tumors were located in the cervical cord in six cases and thoracic cord in three.Three of the nine cases were diagnosed as yon Hippel-Lindau's syndrome.With the assistance of intraoperative 1CG videoangiography,the feeding arteries were confirmed quantitatively in all the nine cases,two of which were fed by multiple arteries accompanying with clear boundary of the tumors and the draining veins.Total tumor resection was achieved in eight cases and subtotal removal in one.McCormick grade was compared between pre-operation and post-operation.No additional neurological deficit was found.Conclusions The ICG Videography was a real-time and dynamic technique,which could accurately identify the feeding arteries,the boundary of the tumors and the draining veins.This angiography could improve the safety and effects of such operation. Key words: Hemangioblastoma ; Spinal cord ; Indocaynine green ; Angiography