[Clinical picture and diagnosis of a myotonic syndrome in children resulting from birth injury].

The authors observed 68 ill children with pronounced muscular hypotonia (myotonia), who were thoroughly examined. The authors describe a group of cervical syndromes and present the symptomatology of myotonic manifestations. On the spondylograms, and with the help of REG and EMG, the signs typical for the natal damage of the cervical area of the spine and spinal cord were revealed. It is concluded that in most of the cases myotonia arises as a result of natally caused ischemia of the reticular formation of the brain stem.