Research Article

Jervell and Lange-Nielsen Syndrome due to a Novel Compound Heterozygous KCNQ1 Mutation in a Chinese Family

Figure 3

ECG detected in Proband 1-II-1. (a) The ECG waveforms before cochlear implantation (CI). Two-way arrow: QT/QTc interval. One-way arrow: dome and dart T wave. (b) The ECG waveforms after cochlear implantation (CI). Two-way arrow: QT/QTc interval. One-way arrows and arrowheads indicate T wave alternans (TWA).
(a)
(b)