The cardiac sodium channel mutation delQKP 1507-1509 is associated with the expanding phenotypic spectrum of LQT3, conduction disorder, dilated cardiomyopathy, and high incidence of youth sudden death.
1Department of Paediatrics, First Affiliated Hospital, Cardiovascular Ion Channel Disease Laboratory, Medical College of Xi'an Jiaotong University, Xi'an, Peoples Republic of China.
