Clinical course of 12 patients with fetal and/or neonatal tachyarrhythmia

Tooru Araki, Kaori Nikaido, Junko Yoshimoto, Ai Yamato, Naoko Okamoto, Maiko Kondo, Masanori Ikeda

Research output: Contribution to journalArticlepeer-review


Objective: The purpose of this study was to clarify the important points in managing the clinical course of fetal and/or neonatal tachyarrhythmia. Subjects and Method: Four cases of fetal tachyarrhythmia, 8 cases of neonatal tachyarrhythmia and 2 cases of fetal and neonatal tachyarrhythmia, which had been treated in our hospital since 2001. Median follow-up period after birth was 3 years and 7 months. The Following points were investigated retrospectively: (1) The clinical course of fetal tachyarrhythmia; and (2) The course after birth in each diagnostic category. Result: (1) Fetal tachyarrhythmia(atrial flutter, 2 cases; and supraventricular tachycardia, 2 cases). There was no case of hydrops and 3 cases underwent intra uterine treatment and regained sinus rhythm. (2) The course after birth in each diagnostic category (atrial flutter, 3 cases; atrial tachycardia, 2 cases; atrioventricular reentry tachycardia, 3 cases; atrioventricular nodal reentry tachycardia, 3 cases; and one case whose course was unknown). Responses to the treatment at the acute phase were good, but 6 cases relapsed and 2 to 4 attacks were observed in the cases of atrioventricular reentry tachycardia. Due to infection, 4 attacks of tachycardia were noticed. Conclusion: Maternal administration of an anti-arrhythmic drug was quite effective for fetal tachyarrhythmia, and fetal diagnosis was useful for managing relapse and for neonatal management. Cases of atrioventricular reentry tachycardia relapsed with higher frequency.

Original languageEnglish
Pages (from-to)1365-1369
Number of pages5
JournalRespiration and Circulation
Issue number12
Publication statusPublished - Dec 2006


  • Atrioventricular reentry tachycardia
  • Fetal tachyarrhythmia
  • Infection

ASJC Scopus subject areas

  • Pulmonary and Respiratory Medicine
  • Cardiology and Cardiovascular Medicine


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