The Clinical Application Of Multiple Evoked Potentials Dynamic Monitoring In The Assessment Of Coma With Traumatic Brain Injury

Objective:To explore the value of evaluating the conscious state of patients of coma with traumatic brain injury(TBI)by dynamic monitoring of three different types of evoked potentials: upper somatosensory evoked potential(USEP),brainstem auditory evoked potential(BAEP)and visual evoked potential(VEP).Methods:120 comatose patients with traumatic brain injury(GCS score: 3-8)(September2016-December 2018)of the department of rehabilitation medicine of the first affiliated hospital of Nanchang University were selected as research objects.The Glasgow coma scale(GCS),upper somatosensory evoked potential(USEP),brainstem auditory evoked potential(BAEP)and visual evoked potential(VEP)of all patients were observed pre-treatment and post-treatment.The detection frequency was once a week for 4 weeks.Results:The GCS score of each week of patients post-treatment was significant difference compared with that of pre-treatment(P<0.05).The incubation period of the main waves of USEP,BAEP and VEP was also shortened to some extent compared with that of pre-treatment,and the difference was statistically significant(P<0.05).There was no significant correlation between the incubation period of the main wave of the three evoked potentials and the GCS score(P>0.05).The change of GCS score was not related with that of incubation period in the early time.But with the increase of treatment time,the change of GCS score was related with that of incubation period.(P<0.01).Conclusion:Three kinds of evoked potential dynamic monitoring were valuable to evaluate the conscious state of comatose patients with traumatic brain injury.The single evoked potential test results cannot reflect the level of consciousness.The changes ofincubation period of three kinds of evoked potential can objectively reflect that of the conscious state of patients of coma with traumatic brain injury.