Difference between arterial and end-tidal carbon dioxide and adverse events after non-cardiac surgery: a historical cohort study

There have been reports of a negative arterial to end-tidal CO2 gradient (Pa-ETco2) during cardiac surgery, so we used capnometry and an intravascular blood gas sensor (Paratrend 7) to continuously monitor this gradient in 20 cardiac surgical patients. We also compared the values obtained from this sensor with those obtained from a standard blood gas analyser at seven time points. We found a significant change in Pa-ETco2 after cardopulmonary bypass (P<0.001) though we were unable to demonstrate a negative Pa-ETco2 at any time (95% CI 0–14%). There was clinically acceptable agreement between laboratory and Paratrend 7 measurements during and after cardiac surgery.

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END-TIDAL CARBON DIOXIDE MEASUREMENT IN INFANTS AFTER CARDIAC SURGERY

Anesthesiology ◽

10.1097/00000542-198709001-00175 ◽

1987 ◽

Vol 67 (3) ◽

pp. A175-A175

Author(s):

David L. Wessel ◽

John L. Boyd ◽

Paul R. Hickey

Keyword(s):

Carbon Dioxide ◽

Cardiac Surgery ◽

Carbon Dioxide Measurement ◽

End Tidal Carbon Dioxide ◽

End Tidal

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The prevalence of chronic chest and leg pain following cardiac surgery: a historical cohort study

Pain ◽

10.1016/s0304-3959(03)00017-4 ◽

2003 ◽

Vol 104 (1) ◽

pp. 265-273 ◽

Cited By ~ 148

Author(s):

J Bruce ◽

N Drury ◽

S A. Poobalan ◽

R R. Jeffrey ◽

S W.C. Smith ◽

...

Keyword(s):

Cardiac Surgery ◽

Cohort Study ◽

Leg Pain ◽

Historical Cohort ◽

Historical Cohort Study

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Measurement of End-Tidal Carbon Dioxide in Spontaneously Breathing Children After Cardiac Surgery

American Journal of Critical Care ◽

10.4037/ajcc2011537 ◽

2011 ◽

Vol 20 (5) ◽

pp. 388-394

Author(s):

Carmen Caroline Rasera ◽

Pedro Miguel Gewehr ◽

Adriana Maria Trevisan Domingues ◽

Fernando Faria Junior

Keyword(s):

Carbon Dioxide ◽

Cardiac Surgery ◽

Blood Gas Analysis ◽

Tracheal Extubation ◽

Supplemental Oxygen ◽

Pulmonary Complications ◽

Gas Analysis ◽

End Tidal Carbon Dioxide ◽

End Tidal ◽

Spontaneously Breathing

BackgroundRespiratory monitoring is important after surgery to prevent pulmonary complications. End-tidal carbon dioxide (Petco2) measurement by capnometry is an indirect and noninvasive measurement of Pco2 in blood and is accepted and recognized in critical care.ObjectivesTo determine the correlation and level of agreement between Petco2 and Paco2 in spontaneously breathing children after cardiac surgery and to determine whether Petco2 measured by using tidal volume (Vt-Petco2) or vital capacity (VC-Petco2) shows more or less significant correlation with Paco2.MethodsVt-Petco2 and VC-Petco2 by capnometry and Paco2 by blood gas analysis were measured once a day after tracheal extubation. The determination coefficient and degree of bias between the methods were assessed in children with and without supplemental oxygen.ResultsA total of 172 Vt-Petco2, VC-Petco2, and Paco2 values from 48 children were analyzed. The overall coefficients of determination were 0.84 (P < .001) for Vt-Petco2 and Paco2 and 0.62 (P = .02) for VC-Petco2 and Paco2. The mean gradient for Paco2 to Petco2 in all groups increased with the increase in supplemental oxygen; the gradient was significantly larger in the groups given 2 to 5 L of oxygen per minute.ConclusionsIn spontaneously breathing children, Vt-Petco2 provided a more accurate estimate of Paco2 than did VC-Petco2, especially in children given little or no supplemental oxygen. The difference between the methods was significantly larger in the groups given 2 to 5 L of oxygen per minute.

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