HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS REGISTER		Author Keyword(s) Vol Page [Advanced]

This Article Full Text Full Text (PDF) All Versions of this Article: adc.2004.064717v1 90/6/F523    most recent Submit a response Alert me when this article is cited Alert me when eLetters are posted Alert me if a correction is posted Citation Map Services Email this link to a friend Similar articles in ADC Online Similar articles in PubMed Add article to my folders Download to citation manager Request Permissions Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Tingay, D G Articles by Morley, C J Search for Related Content PubMed PubMed Citation Articles by Tingay, D G Articles by Morley, C J

Monitoring of end tidal carbon dioxide and transcutaneous carbon dioxide during neonatal transport

¹ Neonatal Emergency Transport Service (Victoria), Royal Women’s Hospital, Carlton, Victoria 3053, Australia
² Department of Neonatology, Royal Children’s Hospital, Parkville, Victoria 3052, Australia
³ Department of Neonatology, Royal Women’s Hospital
⁴ Murdoch Childrens Research Institute, Parkville, Victoria 3052, Australia

Correspondence to:
Correspondence to:
Dr Tingay
Department of Neonatology, Royal Children’s Hospital, Flemington Rd, Parkville, Victoria 3052, Australia; david.tingay{at}rch.org.au

Objective: To assess the accuracy of measurements of end tidal carbon dioxide (CO₂) during neonatal transport compared with arterial and transcutaneous measurements.

Design: Paired end tidal and transcutaneous CO₂ recordings were taken frequently during road transport of 21 ventilated neonates. The first paired CO₂ values were compared with an arterial blood gas. The differences between arterial CO₂ (PaCO₂), transcutaneous CO₂ (TcPCO₂), and end tidal CO₂ (PetCO₂) were analysed. The Bland-Altman method was used to assess bias and repeatability.

Results: PetCO₂ correlated strongly with PaCO₂ and TcPCO₂. However, PetCO₂ underestimated PaCO₂ at a clinically unacceptable level (mean (SD) 1.1 (0.70) kPa) and did not trend reliably over time within individual subjects. The PetCO₂ bias was independent of PaCO₂ and severity of lung disease.

Conclusions: PetCO₂ had an unacceptable under-recording bias. TcPCO₂ should currently be considered the preferred method of non-invasive CO₂ monitoring for neonatal transport.

Abbreviations: PaCO₂, arterial partial pressure of carbon dioxide; TcPCO₂, transcutaneous partial pressure of carbon dioxide; PetCO₂, end tidal partial pressure of carbon dioxide; NETS, Newborn Emergency Transport Service (Victoria); PAO₂/PaO₂ ratio, alveolar-arterial oxygen tension ratio

Keywords: transportation; carbon dioxide; monitoring; mechanical ventilation

This article has been cited by other articles:

				E J Molloy and K Deakins Are carbon dioxide detectors useful in neonates? Arch. Dis. Child. Fetal Neonatal Ed., July 1, 2006; 91(4): F295 - F298. [Abstract] [Full Text] [PDF]