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CASE REPORT
Prenatal diagnosis of a bundle branch block based on the fetal ECG
  1. Lore Noben1,
  2. Sally-Ann Clur2,
  3. Judith OEH van Laar1 and
  4. Rik Vullings3
  1. 1 Department of Obstetrics and Gynaecology, Máxima Medical Centre, Veldhoven, The Netherlands
  2. 2 Department of Pediatric Cardiology, Emma Children’s Hospital AMC, Amsterdam, The Netherlands
  3. 3 Department of Electrical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands
  1. Correspondence to Lore Noben, lore.noben{at}mmc.nl

Abstract

A non-invasive fetal ECG was performed on a 36-year-old pregnant woman at 24+6 weeks of gestation as part of ongoing clinical research. A paediatric cardiologist suspected an incomplete bundle branch block based on the averaged ECGs from the recording. The characteristic terminal R’ wave was present in multiple leads of the fetal ECGs. A fetal anomaly scan had been performed at 20 weeks of gestation and showed no abnormalities. An incomplete right bundle branch block was confirmed on an ECG recorded at the age of 2 years. This case shows the possibility of novel non-invasive fetal ECG technology as an adjunct to the diagnosis of fetal cardiac anomalies in the future.

  • pregnancy
  • materno-fetal medicine
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Footnotes

  • Contributors Report was written by LN. Supervised by S-AC, JOvL and RV. RV provided the case. S-AC is the paediatric cardiologist who made the prenatal diagnosis.

  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Competing interests RV is shareholder in Nemo Healthcare BV.

  • Provenance and peer review Not commissioned; externally peer reviewed.

  • Patient consent for publication Obtained.

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