Changes in cerebral blood flow during anaesthesia and surgery in the sitting position

R J Nelson; A H Lovick; J D Pickard; J Brice; D Saunders; P J Horsey

doi:10.1136/jnnp.50.8.971

Changes in cerebral blood flow during anaesthesia and surgery in the sitting position

J Neurol Neurosurg Psychiatry. 1987 Aug;50(8):971-5. doi: 10.1136/jnnp.50.8.971.

Authors

R J Nelson¹, A H Lovick, J D Pickard, J Brice, D Saunders, P J Horsey

Affiliation

¹ Wessex Neurological Centre, Southampton General Hospital, UK.

Abstract

Serial measurements of global cerebral blood flow (CBF) were made in 15 patients undergoing elective neurosurgical procedures in the sitting position, using a modified intravenous 133Xenon technique. The mean supine CBF rose from 43 (+/-3) ml/100g/min to 62 (+/-6) ml/100g/min in the sitting position and remained elevated at the end of surgery at 62 (+/-5) ml/100g/min. Both increases in CBF were statistically significant with respect to baseline supine values.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Adult
Aged
Anesthesia*
Blood Pressure / drug effects
Brain / surgery*
Cerebrovascular Circulation* / drug effects
Female
Heart Rate / drug effects
Humans
Male
Middle Aged
Postoperative Complications
Posture*
Supination