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The clinical analysis of nervous system damage in 4 cases with chronic manganese poisoning / 中国神经精神疾病杂志
Chinese Journal of Nervous and Mental Diseases ; (12): 662-665, 2014.
Article in Chinese | WPRIM | ID: wpr-461636
ABSTRACT
Objective To summarize the clinical and laboratory features of chronic manganese poisoning. Methods A retrospective analysis was conducted on the clinical data of 4 cases with chronic manganese poisoning, including gener?al information, medical history, clinical manifestations, laboratory examination such as electrophysiological and imaging. Results Patients with chronic manganese poisoning mainly presented with mild mental disorder and autonomic nerve dis?order during early stage and then gradually developed extrapyramidal symptoms and signs. The laboratory examination of chronic manganese poisoning lacked of specificity. EMG showed neurogenic damage in 3 cases and normality in 1 case. EEG showed slightly increased full guide slow wave in 1 case and normality in 3 cases. cranial MRI revealed the damag?es in bilateral symmetry of the basal ganglia nuclei in 4 cases of Chronic manganese poisoning. There was no significant correlation between the changes of urinary manganese level before or after treatment and the clinical manifestations. Conclusions Although there is lack of specific clinical manifestations of chronic manganese poisoning, the possibility of this disease should be considered when patients with mild mental disorders or autonomic nerve disorder with or without extrapyramidal symptoms. The main treatment of chronic manganese poisoning includes excretion of manganese, symp?tomatic and supportive treatment. Patients usually have the sequelae of tremor, muscle tension, and other symptoms.

Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: Chinese Journal of Nervous and Mental Diseases Year: 2014 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: Chinese Journal of Nervous and Mental Diseases Year: 2014 Type: Article