Prenatal Diagnosis of Atrioventricular Block and QT Interval Prolongation by Fetal Magnetocardiography in a Fetus with Trisomy 18 and<i> SCN5A</i> R1193Q Variant

<div>fMCG waveform at 30 weeks’ gestation. QT interval was extremely prolonged (normal QT interval of the same gestational week: 0.248 ± 0.316 s [<a href="/journals/cripe/2017/6570465/#B10">6</a>]). P waves showed the same morphology and polarity. They were observed before the QRS complex and also in the posterior half of the T wave without following the QRS complex, which indicates a functional 2 : 1 AVB related to QT prolongation. pT: piko-Tesla.</div>

Case Reports in Pediatrics

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Figure 1: Prenatal Diagnosis of Atrioventricular Block and QT Interval Prolongation by Fetal Magnetocardiography in a Fetus with Trisomy 18 and<i> SCN5A</i> R1193Q Variant 

Figure 1 | Prenatal Diagnosis of Atrioventricular Block and QT Interval Prolongation by Fetal Magnetocardiography in a Fetus with Trisomy 18 and SCN5A R1193Q Variant 