RT Journal Article
SR Electronic
T1 Effects of Etidocaine Administered Epidurally on Changes in Somatosensory Evoked Potentials after Dermatomal Stimulation
JF Regional Anesthesia: The Journal of Neural Blockade in Obstetrics, Surgery, & Pain Control
JO Reg Anesth Pain Med
FD BMJ Publishing Group Ltd
SP 38
OP 42
DO 10.1136/rapm-00115550-199116010-00009
VO 16
IS 1
A1 Lund, Claus
A1 Mogensen, Torben
A1 Hansen, Ole Bo
A1 Qvitzau, Susanne
A1 Kehlet, Henrik
YR 1991
UL http://rapm.bmj.com/content/16/1/38.abstract
AB The effect of lumbar epidural anesthesia with similar volumes (approximately 20 ml) of 1% and 1.5% etidocaine on early (<0.5 seconds) somatosensory evoked potentials (SEPs) to electrical stimulation of the S1, L1 and T10 dermatomes was examined in two groups of ten patients in a randomized, double-blind study. Level of analgesia to pinprick was T7.7 ± 0.9 in the 1% group and T6.6 ± 0.6 in the 1.5% group and all patients had total motor block. Despite similar analgesia to pinprick, SEP amplitude was more reduced in the 1.5% group, in which SEPs were abolished in all patients at the L1 level.