Walters F J
Department of Anaesthesia, Frenchay Hospital, Bristol.
Br J Hosp Med. 1987 Oct;38(4):351-6.
Invasive investigation of the brain and spinal cord started in the early part of the 20th century. With advances in the understanding of neurophysiology, improvements in anaesthetic technique and the advent of new drugs, general anaesthesia has become an acceptable alternative to local anaesthesia during these investigations.