Objective To study the relationship between the changes of cytosine,thymine,guanine(CTG)repeat numbers and brain stem BAEP,SEP and VEP in patients with myotonic dystrophy(DM) and their family members.

• 目的探讨强直性肌营养不良(DM)患者及其家系成员三核苷酸重复数CTG(胞嘧啶、胸腺嘧啶、鸟嘌呤)的变化与脑干听觉诱发电位(BAEP)、体感诱发电位(SEP)、视觉诱发电位(VEP)的关系。