Study the lower limber somatosensory evoked potentials in patients with delayed encephalopathy after acute carbon monoxide poisoning / 临床神经病学杂志

ABSTRACT

Objective To evaluate the changes of the lower limber somatosensory evoked potentials (SEPs) in patients with delayed encephalopathy after acute carbon monoxide poisoning.Methods The tibial nerve SEPs were performed in 32 healthy adults and 40 patients with delayed encephalopathy after acute carbon monoxide poisoning. Wave N22, P40, N50, P60, N75 latency and N22～P40 interpeaklatencies were measured, respectively.Results 30 patients (75%) indicated abnormalities of tibial nerve SEPs. The latencies of cortical potential of wave P40 [(41.92?2.49)ms], N50 [(52.13?4.29) ms], P60 [(64.37?4.98) ms] and N75 [(80.84?4.73)ms] in patient group were longer than those in control group (all P