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[Injuries in the etiopathogenesis of multiple sclerosis].

An injury might derange the protective function of the blood-brain barrier, and thus it represents one of the possible pathogenetic factors in the demyelination of the neural axis. However, the effect of injury on the occurrence or deterioration of multiple sclerosis is still controversial. According to most authors, the importance of injury in individual cases of multiple sclerosis is undeniable, as well as the fact that injuries are factors of progression and deterioration of the disease, but never its cause. Consequently, injuries can cause only temporary disability, and not permanent. Nevertheless, the incidence of multiple sclerosis increases proportionally to the severity of injury. The length of the period from the occurrence of injury to possible demyelination is still not established. Studies and clinical reports point to the fact that in the evaluation of injury as a precipitating factor for the vulnerability of the blood-brain barrier, the severity of the injury is of greater importance than its site.