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Dual-Dye Optical Mapping of Hearts from RyR2R2474S Knock-In Mice of Catecholaminergic Polymorphic Ventricular Tachycardia
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Prenatal diagnosis of polymorphic ventricular tachycardia using 64-channel magnetocardiography

Akimune Fukushima1, Kenji Nakai, Atsushi Matsumoto

  • 1Department of Obstetrics and Gynecology, School of Medicine, Iwate Medical University, Uchimaru, Morioka, Iwate 020-8505, Japan. akimunef@iwate-med.ac.jp

Heart and Vessels
|June 1, 2010
PubMed

We describe polymorphic ventricular tachycardia (VT) diagnosed using fetal magnetocardiography (FMCG). The fetus of a 33-year-old Japanese female at 24 weeks of pregnancy was diagnosed as bradycardia (60 beats/min) by fetal cardiotocography (CTG). Ultrasound findings indicated a diagnosis of an atrioventricular (AV) block involving extrasystole, but FMCG revealed a polymorphic VT followed by ventricular asystole. Standard ECG immediately after cesarean section at 37 weeks of pregnancy confirmed long QT syndrome followed by nonsustained polymorphic VT and an advanced AV block with wide QRS. Echocardiography demonstrated moderate left ventricular dysfunction in the neonate requiring implantation with a permanent pacemaker.

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