A Note of Caution About the Continuous Use of Colorimetric End-Tidal CO2 Detectors in Children

PEDIATRICS ◽  
1995 ◽  
Vol 95 (5) ◽  
pp. 800-801
Author(s):  
Mananda S. Bhende ◽  
David LaCovey
Keyword(s):  
Endotracheal Tube ◽  
Dead Space ◽  
Spontaneous Circulation ◽  
End Tidal ◽  
Continuous Use ◽  
End Tidal Co2

Colorimetric end-tidal CO2 (ETCO2) detectors (Easy Cap, Nellcor Inc, Hayward, CA) are extremely useful in determining the position of the endotracheal tube (ETT) in the airway and have been validated in animals, children, and adults.1-6 They have not been labelled for use in children weighing 15 kg because of their large dead space of 38 mL.1-3 We have demonstrated in numerous studies that the ETCO2 detector accurately verifies the ETT position in infants weighing >2 kg with spontaneous circulation.1-3

THE UTILITY OF END TIDAL CO2 (ETCO2) MONITORING DURING IN-HOSPITAL CARDIAC ARREST TO PREDICT RETURN OF SPONTANEOUS CIRCULATION

CHEST Journal ◽  
2018 ◽  
Vol 154 (4) ◽  
pp. 68A
Author(s):  
MICHAEL ROSMAN ◽  
YING (SHELLY) QI ◽  
CAITLIN O'NEILL ◽  
AMANDA MENGOTTO ◽  
JIGNESH PATEL ◽  
...  
Keyword(s):  
Cardiac Arrest ◽  
Spontaneous Circulation ◽  
Return Of Spontaneous Circulation ◽  
End Tidal ◽  
Hospital Cardiac Arrest ◽  
End Tidal Co2

The Effect of Changing the Mode of Ventilation on the Arterial-to-End-Tidal CO2 Difference and Physiological Dead Space in Laterally and Dorsally Recumbent Horses During Halothane Anesthesia

2000 ◽  
Vol 29 (2) ◽  
pp. 200-205 ◽  
Author(s):  
Francisco J. Teixeira Neto ◽  
Stelio P.L. Luna ◽  
Flavio Massone ◽  
Armen Thomassian ◽  
Jose L.R. Vargas ◽  
...  
Keyword(s):  
Dead Space ◽  
Halothane Anesthesia ◽  
Physiological Dead Space ◽  
End Tidal ◽  
End Tidal Co2

Verification of endotracheal tube placement with colorimetric end-tidal CO2 detection

1991 ◽  
Vol 20 (3) ◽  
pp. 267-270 ◽  
Author(s):  
Bruce A MacLeod ◽  
Michael B Heller ◽  
Jody Gerard ◽  
Donald M Yealy ◽  
James J Menegazzi
Keyword(s):  
Endotracheal Tube ◽  
Tube Placement ◽  
Endotracheal Tube Placement ◽  
Co2 Detection ◽  
End Tidal ◽  
End Tidal Co2

End-tidal CO2 response to low levels of inspired CO2 in awake beagle dogs

1980 ◽  
Vol 48 (6) ◽  
pp. 1077-1082 ◽  
Author(s):  
P. Reischl ◽  
D. M. Stavert ◽  
S. M. Lewis ◽  
L. C. Murdock ◽  
B. J. O'Loughlin
Keyword(s):  
Steady State ◽  
Dead Space ◽  
Resolving Power ◽  
Beagle Dogs ◽  
Co2 Response ◽  
Arterial Pco2 ◽  
Control Of Ventilation ◽  
Low Levels ◽  
End Tidal ◽  
End Tidal Co2

The steady-state end-tidal CO2 tension (PCO2) was examined during control and 1% CO2 inhalation periods in awake beagle dogs with an intact airway breathing through a low dead-space respiratory mask. A total of eight experiments were performed in four dogs, comprising 31 control observations and 23 CO2 inhalation observations. The 1% inhaled CO2 produced a significant increase in the steady-state end-tidal PCO2 comparable to the expected 1 Torr predicted from conventional CO2 control of ventilation. We conclude that 1% inhaled CO2 results in a hypercapnia. Any protocol that is to resolve the question of whether mechanisms are acting during low levels of inhaled CO2 such that ventilation increases without any change in arterial PCO2 must have sufficient resolving power to discriminate changes in gas tension in magnitude predicted from conventional (i.e., arterial PCO2) control of ventilation.

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