Accuracy and utility of a continuous intra-arterial blood gas monitoring system in pediatric patients

作者：Lynne W. Coule, Edward J. Truemper, Curt M. Steinhart, William A. Lutin · 发表于：Critical Care Medicine · 年份：2001 · DOI：10.1097/00003246-200102000-00037 · 被引用次数：34 · 研究领域：Hemodynamic Monitoring and Therapy、Renal function and acid-base balance、Sepsis Diagnosis and Treatment

OBJECTIVES: To determine the accuracy of the Paratrend 7 continuous intra-arterial blood gas monitor (CI-ABGM) in radial and femoral artery catheters placed in children compared with simultaneous measurements of pH, Pa(CO2), and Pa(O2) performed by intermittent blood gas analysis. To determine sensor longevity in pediatric patients at different arterial sites. To determine the utility of CI-ABGM for tracking unanticipated events related to blood gas deterioration. SETTING: A pediatric intensive care unit of a university hospital. DESIGN: A prospective clinical investigation. PATIENTS: Fifty critically ill pediatric patients, ranging in age from 1 wk to 18 yrs of age, who required either radial or femoral artery catheters for intermittent arterial blood gas monitoring. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: A Paratrend 7 intra-arterial sensor was placed through either an 18- or 20-gauge catheter previously inserted into the radial or femoral artery. At clinically predetermined intervals ranging from every 1 to 8 hrs, the CI-ABGM measurements of pH, P(CO2), and P(O2) were compared with the values determined by standard intermittent blood gas analysis. The Paratrend 7 system values were individually adjusted to match ABG results when the Paratrend 7 pH differed by greater than +/-0.05 units, P(CO2) was greater than +/-5 torr (0.7 kPa), and P(O2) was greater than +/-15% of the ABG value. Significant aberrations in gas exchange defined as unanticipated events were cat...