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What is the potential for over-compression using current paediatric chest compression guidelines? - A chest computed

Gene Yong-Kwang Ong1, Aloysius Jian Feng Ang2, Amirzeb S O Aurangzeb2

  • 1Children's Emergency, KK Women's and Children's Hospital, Singapore.

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|July 5, 2021
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Current paediatric chest compression guidelines may lead to over-compression. Simulated compressions based on chest CT scans suggest that recommended depths of 4 cm for infants and 5 cm for young children pose a risk of over-compression, especially when exceeding these limits.

Keywords:
Cardiopulmonary resuscitationChest compressionComputed tomographyPediatrics

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Area of Science:

  • Cardiology
  • Pediatric Emergency Medicine
  • Radiology

Background:

  • Current paediatric chest compression depth guidelines are based on limited data.
  • Over-compression during cardiopulmonary resuscitation (CPR) can cause significant injury.
  • Accurate chest compression depth is crucial for effective paediatric resuscitation.

Purpose of the Study:

  • To evaluate the potential for over-compression using current paediatric chest compression depth guidelines.
  • To analyze chest computed tomography (CT) images from a large, diverse Asian paediatric population.
  • To assess the risk of over-compression at recommended and slightly increased compression depths.

Main Methods:

  • Retrospective review of 592 paediatric chest CT scans (2005-2017).
  • Measurement of internal and external anterior-posterior diameters (APD) at the lower sternum.
  • Simulation of chest compressions to determine residual internal cavity dimensions (RICD) and identify potential over-compression (RICD < 10 mm).

Main Results:

  • Simulated compressions of one-third external APD showed minimal over-compression risk (0% infants, 0.3% children).
  • A 4 cm compression depth resulted in 18% of infants and 34% at 4.4 cm having potential over-compression.
  • A 5 cm compression depth resulted in 8% of children (1-8 years) and 22% at 5.5 cm having potential over-compression.

Conclusions:

  • Current recommended chest compression depths of approximately 4 cm (infants) and 5 cm (young children) may lead to potential over-compression.
  • The risk of over-compression increases when compression depths exceed recommended guidelines.
  • Accurate measurement of chest compression depth is critical in paediatric CPR settings.