Visual field defects in selective amygdalohippocampectomy for hippocampal sclerosis: The fate of Meyer's loop during the transsylvian approach to the temporal horn

Yeni S. N. , Tanriover N. , Uyanik O., Ulu M. O. , Oezkara Ç. , Karaagac N., ...More

NEUROSURGERY, vol.63, no.3, pp.507-513, 2008 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 63 Issue: 3
  • Publication Date: 2008
  • Doi Number: 10.1227/01.neu.0000324895.19708.68
  • Title of Journal : NEUROSURGERY
  • Page Numbers: pp.507-513
  • Keywords: amygdalohippocampectomy, epilepsy, epilepsy surgery, microsurgical anatomy, optic radiation, temporal lobe, visual field, MICROSURGICAL ANATOMY, OPTIC RADIATION, LOBE EPILEPSY, LOBECTOMY, RESECTION, DEFICITS, SURGERY


OBJECTIVE: Meyer's loop, the most vulnerable part of the optic radiations during approaches to the temporomedial region, extends to the tip of the temporal horn and is often encountered in epilepsy surgery. The risk of damaging Meyer's loop during transsylvian selective amygdalohippocampectomy peaks while accessing the temporal horn through its roof by opening the inferior limiting sulcus of the insula. In this prospective study, we sought to evaluate and identify the incidence of visual field deficits in a homogeneous group of patients who had temporal lobe epilepsy with hippocampal sclerosis and who underwent transsylvian selective amygdalohippocampectomy.