[Studies of electromyography and genetics in children with Charcot-Marie-Tooth disease type 1].

Objective: To study the electromyographic and genetic characteristics in children with Charcot-Marie-Tooth disease type 1 (CMT1).

Methods: Routine electromyography and nerve conduction were performed in 24 children with CMT1. Polymerase chain reaction (PCR) combined with restriction enzyme digestion was used to detect gene duplication on chromosome 17p11.