Method: In a family with FPAVJRT, PCR-DNA direct sequencing were performed to screen the exons and their flanking introns of KCNQ1 and KCNH2 genes for mutations.

• 方法：在一个FPAVJRT大家系中，采用PCR直接测序技术，对KCNQ1和KCNH2基因的所有外显子和附近的部分内含子进行序列测定。