Somatosensory evoked potentials after sequential extremity stimulation: a new method for improved monitoring accuracy.
A new method for improving the accuracy of somatosensory evoked potential (SEP) monitoring is described. Two extremities are stimulated at 5 Hz, with an interextremity stimulus interval of 100 ms. Information from a "control" extremity, such as an arm during scoliosis operation, may allow more rapid and accurate interpretation of changes in SEPs during intraoperative monitoring.
Friedman
W A
WA
Department of Neurological Surgery, University of Florida College of Medicine, Gainesville.
Curran
M T
MT
D003201:Computers; D004558:Electric Stimulation; D004569:Electroencephalography / Q000295:instrumentation*; D005073:Evoked Potentials, Somatosensory; D005121:Extremities / Q000294:innervation*; D006801:Humans; D007431:Intraoperative Complications / Q000503:physiopathology*; D008838:Microcomputers; D010525:Peripheral Nerves / Q000503:physiopathology*; D011930:Reaction Time / Q000502:physiology; D012815:Signal Processing, Computer-Assisted