Visual Evoked Potentials in Children with Sellar or Parasellar Masses

J Korean Neurol Assoc > Volume 7(1); 1989 > Article

Journal of the Korean Neurological Association 1989;7(1): 276-287.

소아의 터어키안 혹은 그 주위 종괴성 질환에서의 시각유발전위검사

이상수, 이광우,노재규,이상복,명호진,한설희

서울대학교 신경과. 충북대학교 신경과.

Visual Evoked Potentials in Children with Sellar or Parasellar Masses

Sang-Soo Lee,M.D., Kwang-Woo lee,M.D., Jae-Kyu Roh,M.D., sang-Bok Lee,M.D., Ho-Jin Myung,M.D., Seol-Heui Han,M.D.

Department of neurology , College of medicine, Seoul National University

Abstract

Visual evoked potentials (VEP's) were studied in 19 children with surgically verified sellar or parasellar masses (7 craniopharyngioma, 3 optic chiasmal glioma, 3 granuloma, 1 hematoma, 1 arachnoid cyst, 1 medulloblastoma, 1 pituitary adenoma, 1 Rathke's cleft cyst and 1 germ cell tumor). Abnormalities consistent with visual pathway dysfunction were recorded in 17 patients (89%). Absent responses or poor wave formations were noted in 7 patients and delayed P1 latency in 10 patients. Two patients, one with intrasellar Langerhans' cell granuloma and the other with pituitary adenoma, had normal evoked potentials. The incidence and the degree of abnormalities in VEP's roughly correlated with the visual acuity. Postoperative VEP's were recorded in 5 patients and showed improvement in 4 patients. VEP's might be helpful for postoperative follow-up in children with sellar or parasellar masses.