Cognitive function analysis of chronic lead poisoning in adults
2021
Objective: To explore the changes of the auditory event-related potentials P300 and the Montreal Cognitive Assessment (MoCA) in the chronic mild lead poisoning in order to find out the impairment of cognitive function and intervene early. Methods: In February 2020, 50 patients with chronic mild lead poisoning in Wuhan Center for Prevention and Treatment of Occupational Diseases from June 2011 to June 2015 were selected as the case group, and 50 healthy people were selected as the control group. The changes of auditory event-related potential P300 and MOCA of the two groups were analyzed. Results: Compared with the control group, the latency of P300 of auditory event-related potential in the case group was prolonged and the amplitude was decreased (P<0.05) . Compared with the control group, the total score of MoCA in the case group was decreased, the mean score of language, abstract and delayed memory items decreased, and the differences were statistically significant (P<0.05) . Conclusion: The combination of auditory event-related potential P300 and MOCA is helpful to detect the early cognitive impairment in chronic lead poisoning population, and auditory event-related potential P300 is an objective and effective early detection method.
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