부산대학교 도서관

Introduction: Flexible neuroendoscopic surgery is less invasive and especially useful for performing biopsies of ventricular and periventricular tumors. A notable disadvantage of neuroendoscopic surgery is the relatively limited visual field without landmarks, which often causes disorientation. A navigation system is therefore often used to guide neurosurgical procedures. Materials and Methods: We retrospectively analyzed cases of flexible endoscopic surgery performed with the aid of a navigation system at the study center between 2013 and 2019. Results: A navigation system was used in 24 of 96 cases of flexible endoscopic surgery. A navigation system was used to access small lesions accurately in 13 surgeries and to confirm the position of the relevant structure during endoscopic procedures in 11 surgeries. Illustrative case 1: A 9-year-old, female patient with a suprasellar lesion without lateral ventricular enlargement underwent flexible endoscopic biopsy using a navigation system to access the frontal hone of the lateral ventricle correctly. Illustrative case 2: A 3-month-old, male patient with enlarged head circumference due to intracranial cysts underwent endoscopic cystostomy with the aid of a navigation system, which was used to confirm the correct direction for perforating the cyst wall. Conclusion: Navigation systems were useful for accessing small lesions and confirming the correct direction and current position without landmarks in flexible neuroendoscopic surgery in children.