Noninvasive capnometry in a pediatric population with respiratory emergencies

Thomas J. Abramo, Robert A. Wiebe, Susan M. Scott, Patricia A. Primm, Don Mcintyre, Todd Mydler

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

Objective: This study was designed to investigate the reliability, safety, and efficacy of measuring end tidal CO2 (ETCO2) in nonintubated pediatric patients presenting to an emergency department (ED) with respiratory emergencies. Design/Setting/Patients: Eighty-five children were enrolled in a clinical, prospective, observational study at a university- affiliated children's hospital. Children age four weeks to 15.3 years with upper and lower respiratory diseases were enrolled by convenience sampling over a five-month period. Interventions: ETCO2 measurements were obtained on each patient by oral/nasal side-stream capnometry. When a consistent waveform was obtained, the value was compared with a capillary arterial partial pressure of CO2 (CapCO2), oxygen saturation (O2Sat), and clinical observations. Results: Study patients had a mean ETCO2 reading of 33 mmHg with a standard deviation (SD) of 4.6 mmHg and CapCO2 reading of 36 mmHg with a SD of 4.5 mmHg. Pulmonary findings, final diagnosis, and age did not significantly alter the relationship between CapCO2 and ETCO2. The relationship between CapCO2 and ETCO2 was significant (t = 14.9, P < 0.0001, r = 0.87), with a 95% confidence interval for prediction of ±5 mmHg. Conclusion: Dependable ETCO2 values can be obtained using an oral/nasal capnometry circuit, and they consistently correlate with CapCO2 in a pediatric population with upper and lower respiratory diseases. Noninvasive ETCO2 analysis is safe and reliable within the limitations of this study group. Further exploration is necessary to determine the value of this technology in assisting with clinical decisions in the patient with impending respiratory failure.

Original languageEnglish (US)
Pages (from-to)252-254
Number of pages3
JournalPediatric Emergency Care
Volume12
Issue number4
StatePublished - 1996

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Partial Pressure
Arterial Pressure
Emergencies
Pediatrics
Population
Nose
Reading
Respiratory Insufficiency
Observational Studies
Hospital Emergency Service
Prospective Studies
Confidence Intervals
Oxygen
Technology
Safety
Lung

Keywords

  • capillary PCO
  • capnometry
  • End tidal CO
  • oral/nasal cannula
  • respiratory illness

ASJC Scopus subject areas

  • Pediatrics, Perinatology, and Child Health
  • Nursing(all)
  • Emergency Medicine

Cite this

Abramo, T. J., Wiebe, R. A., Scott, S. M., Primm, P. A., Mcintyre, D., & Mydler, T. (1996). Noninvasive capnometry in a pediatric population with respiratory emergencies. Pediatric Emergency Care, 12(4), 252-254.

Noninvasive capnometry in a pediatric population with respiratory emergencies. / Abramo, Thomas J.; Wiebe, Robert A.; Scott, Susan M.; Primm, Patricia A.; Mcintyre, Don; Mydler, Todd.

In: Pediatric Emergency Care, Vol. 12, No. 4, 1996, p. 252-254.

Research output: Contribution to journalArticle

Abramo, TJ, Wiebe, RA, Scott, SM, Primm, PA, Mcintyre, D & Mydler, T 1996, 'Noninvasive capnometry in a pediatric population with respiratory emergencies', Pediatric Emergency Care, vol. 12, no. 4, pp. 252-254.
Abramo TJ, Wiebe RA, Scott SM, Primm PA, Mcintyre D, Mydler T. Noninvasive capnometry in a pediatric population with respiratory emergencies. Pediatric Emergency Care. 1996;12(4):252-254.
Abramo, Thomas J. ; Wiebe, Robert A. ; Scott, Susan M. ; Primm, Patricia A. ; Mcintyre, Don ; Mydler, Todd. / Noninvasive capnometry in a pediatric population with respiratory emergencies. In: Pediatric Emergency Care. 1996 ; Vol. 12, No. 4. pp. 252-254.
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