Abstract
To determine whether single breath end-tidal carbon dioxide (Pe’CO2) measurements accurately estimate arterial PCO2 (PaCO2) in infants and children, 68 healthy infants and children, ASA physical status I or II scheduled for peripheral and lower abdominal surgery requiring endotracheal intubation were studied. A3 ml single breath sample was obtained with a 23-gauge needle which was inserted through the wall of the endotracheal tube below the connector. The mean ± SD Pe’CO233.6 ± 6.9 mmHg did not differ significantly from the corresponding mean ± SD PaCO2 33.6 ± 5.6 mmHg. The coefficient of determination, r2, was 0.97. The authors conclude that single breath Pe’CO2 measurements from the proximal end of the endotracheal tube accurately estimate the PaCO2 in infants and children.
Résumé
Ľétude du CO2 en fin ďexpiration (Pe’CO2) par la technique ďéchantillonage unique chez les jeunes enfants a été développée dans le but ďestimer la tension artérielle du CO2. Soixante-huit jeunes enfants avec un état physique I ou II de la classification ASA ayant été cedulés pour chirurgie abdominale basse ou périphériques sous anesthésie générale avec intubation endotrachéale ont été étudiés. La procédure ďéchantillonage respiratoire simple était obtenue a ľaide ďune ajuille #23 insérée sous le connecteur dans le tube endotracheal en fin ďexpiration. Le et Pe’CO2 ± DS33.6 ± 6.9 mmHg n’était pas significativement différent de la moyenne ± DS 33.6 ± 5.6 mmHg observée pour PaCO2. Le coefficient de détermination, r2, était 0.97. Les auteurs conclurent que la technique de mesure du Pe’CO2 par échantillonage simple peut adéquatement estimer la PaCO2 chez les jeunes enfants même eu ľabsence Ľun moniteur et Pe’CO2 à debit continue.
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Bissonnette, B., Lerman, J. Single breath end-tidal CO2 estimates of arterial PCO2 in infants and children. Can J Anaesth 36, 110–112 (1989). https://doi.org/10.1007/BF03011429
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DOI: https://doi.org/10.1007/BF03011429