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Images in neonatal medicine
Transthoracic colour-encoded M-mode echocardiography demonstrating neonatal atrial flutter
  1. Karen Donceras Nadua1,
  2. Ming Xu2,
  3. Jonathan Tze Liang Choo2
  1. 1 Department of Paediatrics, KK Women's and Children's Hospital, Singapore
  2. 2 Department of Paediatric Subspecialities, KK Women's and Children's Hospital, Singapore
  1. Correspondence to Dr Jonathan Tze Liang Choo, Department of Paediatric Subspecialities, KK Women's and Children's Hospital, Singapore 229899, Singapore; chooseml{at}yahoo.com.sg

https://doi.org/10.1136/archdischild-2020-319072

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    The heart rate of a premature infant had acutely increased during umbilical venous catheterisation. Surface ECG showed a heart rate of 220 beats per minute (bpm). This was interpreted as sinus tachycardia. Transthoracic echocardiography was subsequently performed, demonstrating a moderate patent ductus arteriosus and a small patent oval foramen (PFO), both with left-to-right flow across. In addition, colour-encoded M-mode was used with the line of interrogation crossing the PFO, demonstrating two mechanical atrial events for each ventricular mechanical event …

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    Footnotes

    • Contributors KDN wrote the manuscript. MX critically reviewed the manuscript. JTLC wrote the manuscript.

    • 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 None declared.

    • Patient consent for publication Parental/guardian consent obtained.

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