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Tobias JD, Meyer DJ, Helikson MA. Monitoring of pH and PCO2 in children using the Paratrend 7 in a peripheral vein. Can J Anaesth. 1998;45(1):81doi: 10.1007/BF03012000.
Tobias, J. D., Meyer, D. J., & Helikson, M. A. (1998). Monitoring of pH and PCO2 in children using the Paratrend 7 in a peripheral vein. Canadian journal of anaesthesia = Journal canadien d'anesthesie, 45(1), 81. https://doi.org/10.1007/BF03012000
Tobias, J D, et al. "Monitoring of pH and PCO2 in children using the Paratrend 7 in a peripheral vein." Canadian journal of anaesthesia = Journal canadien d'anesthesie vol. 45,1 (1998): 81. doi: https://doi.org/10.1007/BF03012000
Tobias JD, Meyer DJ, Helikson MA. Monitoring of pH and PCO2 in children using the Paratrend 7 in a peripheral vein. Can J Anaesth. 1998 Jan;45(1):81. doi: 10.1007/BF03012000. PMID: 27519039.
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Can J Anaesth. 1998 Jan;45(1):81. doi: 10.1007/BF03012000.

Monitoring of pH and PCO2 in children using the Paratrend 7 in a peripheral vein.

Canadian journal of anaesthesia = Journal canadien d'anesthesie

J D Tobias, D J Meyer, M A Helikson

Affiliations

  1. Department of Child Health, The University of Missouri, Columbia, Missouri.
  2. Department of Anesthesiology, The University of Missouri, Columbia, Missouri.
  3. The Divisions of Pediatric Critical Care/Anesthesiology, The University of Missouri, Columbia, Missouri.
  4. Department of Pediatric Surgery, The University of Missouri, Columbia, Missouri.
  5. Department of Surgery, The University of Missouri, Columbia, Missouri.

PMID: 27519039 DOI: 10.1007/BF03012000

Abstract

PURPOSE: To determine the accuracy of the Paratrend 7 monitor inserted into a peripheral vein in providing continuous measurements of PCO2 and pH in children with respiratory failure.

METHODS: In a prospective, case series at a University based PICU in a tertiary referral hospital and following informed consent, the Paratrend 7 intra-arterial blood gas monitoring system was inserted through a peripheral intravenous cannula. When clinically indicated, an arterial blood gas (ABG) was obtained. The values of pH and PCO2 from the Paratrend 7 and the ABG were compared using linear regression analysis and Bland-Altman analysis.

RESULTS: Seventeen ABGs were obtained in the 4 patients. PaC02 ranged from 29 to 51 mmHg and the pH values from 7.16 to 7.50. Linear regression analysis for the:Paratrend 7 pHvs the ABG pH resulted in an r = 0.9678 and an r(2) = 0.9367 (P < 0.0001). Linear regression analysis for the Paratrend 7 CO2 vs ABG CO2 resulted in an r = 0.8273 and an r(2) = 0.6845 (P = 0.01). Using a Bland and Altman analysis, the bias ± precision of the PCO2 values was 3 ± 1.4 and 0.036 ± 0.02 for the pH values.

CONCLUSION: The pH and PCO2 values obtained from the Paratrend 7 monitor provide a clinically acceptable correlation with arterial values.

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