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Q—T 间期延长综合征可表现为先天性耳聋、Q—T 间期延长、心律失常、昏厥及猝死。本病可以是家族性的。我院子1987年6月6日收治一例 Q—T间期延长但无耳聋患者(刘某,男性,8岁),并作了家系调查及3年随访,现报告如下。一、调查对象:先证者家系成员(详见家系图):四代,共14人;男10人,女4人;年龄8个月～70岁。此外,对3例已亡家系人员作了死因回顾性调查。二、调查内容:(1)家系成员相互之间的血缘关系;(2)性别,年龄,有否耳聋、心悸、昏厥、抽搐;(3)
Q-T prolongation syndrome can be manifested as congenital deafness, Q-T interval prolongation, arrhythmia, fainting and sudden death. The disease can be familial. My courtyard in June 6, 1987 admitted to a Q-T prolongation but no deafness patients (Liu, male, 8 years old), and made a pedigree investigation and 3 years follow-up report is as follows. First, the survey: proband family members (see family diagram): four generations, a total of 14 people; 10 men and 4 women; aged 8 months to 70 years old. In addition, 3 deceased family members were retrospectively analyzed for the cause of death. Second, the survey: (1) family members of each other’s blood relationship; (2) gender, age, whether there is deafness, palpitations, fainting, convulsions; (3)