• J D Tobias, D Connors, L Strauser, and T Johnson.
• Departments of Child Health and Anesthesiology, The University of Missouri, Columbia, Missouri 65212, USA.
• J. Pediatr. 2000 May 1; 136 (5): 623-7.

ContextThe Paratrend monitor provides continuous arterial blood gas monitoring after insertion through a >/=20-gauge arterial cannula.ObjectiveTo determine the correlation of arterial blood gas values and the Paratrend monitor placed through a peripheral intravenous catheter.DesignProspective, open-label evaluation.SettingUniversity-based pediatric intensive care unit.PatientsInfants and children with respiratory failure and arterial access.ResultsThe cohort included 23 infants and children. A total of 100 sample sets (Paratrend/ABG Pco(2) and pH values) were collected. The absolute difference between the arterial and Paratrend Pco(2) was 2. 9 +/- 1.8 mm Hg (range 0 to 9 mm Hg). Linear regression analysis of Paratrend Pco(2) versus arterial Pco(2) resulted in r = 0.97 and r(2) = 0.9479 (P <.001). Bland-Altman analysis of Pco(2) values demonstrated a bias +/- precision of -2.1 +/- 2.7 mm Hg. The absolute difference between arterial and Paratrend pH was 0.04 +/- 0. 02 units (range 0 to 0.15 units). Linear regression analysis of Paratrend pH versus arterial pH resulted in r = 0.83 and r(2) = 0. 7016 (P <.0001). Bland-Altman analysis of pH values revealed a bias +/- precision of 0.03 +/- 0.03 units.ConclusionsInserted through a peripheral intravenous cannula, the Paratrend monitor can be used to provide an accurate estimation of arterial blood gas values in children with respiratory failure.

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