Prenatal diagnosis of fetal complete atrioventricular block with QT prolongation and alternating ventricular pacemakers using multi-channel magnetocardiography and current-arrow maps

Takayoshi Hosono, Mika Shinto, Yoshihide Chiba, Akihiko Kandori, Keiji Tsukada

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

We report a case of fetal complete atrioventricular block (CAVB) with QT prolongation and alternating ventricular pacemakers diagnosed by magentocardiography (MCG). Fetal bradyarrhythmia of around 60 bpm was detected at 30 weeks of gestation. Ultrasonography revealed fetal CAVB without structural cardiac anomalies. MCG was recorded at 30 weeks of gestation using a 64-channel superconducting quantum interference device (MC-6400, Hitachi, Japan). The averaged MCG revealed QT prolongation, and the current-arrow maps generated by MCG revealed alternating ventricular pacemakers. The diagnosis was confirmed by electrocardiogram after birth. A permanent pacemaker was implanted during the early neonatal period, and the infant was healthy at 6 months of follow-up. MCG may be a useful diagnostic tool for fetal CAVB with QT prolongation and alternating ventricular pacemakers.

Original languageEnglish
Pages (from-to)173-176
Number of pages4
JournalFetal Diagnosis and Therapy
Volume17
Issue number3
DOIs
Publication statusPublished - 2002
Externally publishedYes

Fingerprint

Magnetocardiography
Atrioventricular Block
Prenatal Diagnosis
Prenatal Ultrasonography
Pregnancy
Bradycardia
Japan
Electrocardiography
Parturition
Equipment and Supplies

Keywords

  • Alternating ventricular pacemaker
  • Congenital complete atrioventricular block
  • Current-arrow map
  • Magnetocardiography
  • QT prolongation

ASJC Scopus subject areas

  • Obstetrics and Gynaecology
  • Pediatrics, Perinatology, and Child Health

Cite this

Prenatal diagnosis of fetal complete atrioventricular block with QT prolongation and alternating ventricular pacemakers using multi-channel magnetocardiography and current-arrow maps. / Hosono, Takayoshi; Shinto, Mika; Chiba, Yoshihide; Kandori, Akihiko; Tsukada, Keiji.

In: Fetal Diagnosis and Therapy, Vol. 17, No. 3, 2002, p. 173-176.

Research output: Contribution to journalArticle

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