Comparison between oscillometric and intra-arterial blood pressure measurements in ill preterm and full-term neonates |
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Institution: | 1. Department of Anesthesiology, Center of Anesthesiology and Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246 Hamburg, Germany;2. Anesthesiology Service, Veterans Affairs San Diego Healthcare System, San Diego, CA 92161-5085, USA;3. Department of Anesthesiology, University of California, 3350 La Jolla Village Dr, San Diego, CA 92161-5085, USA;1. Division of Pediatric Cardiology, David Geffen School of Medicine at UCLA, Los Angeles, Calif;2. Division of Cardiology, David Geffen School of Medicine at UCLA, Los Angeles, Calif;3. Division of Cardiothoracic Surgery, David Geffen School of Medicine at UCLA, Los Angeles, Calif |
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Abstract: | Conflicting data exist regarding the accuracy of the oscillometric method of blood pressure (BP) measurement in neonates. There is limited data regarding intra-arterial BP trends in neonates. We aimed to determine the accuracy of oscillometric BP measurements and to evaluate the BP distributions in ill neonates. A total of 1492 simultaneously obtained oscillometric and intra-arterial (umbilical arterial UAC] or radial arterial) BP measurements were used for comparisons and 125,580 intra-arterial BP readings were used to the evaluate BP distribution. There was a statistically significant difference (P < .0001) between the oscillometric and radial mean arterial BP (MAP) 4.8 ± 9.8 mm Hg, systolic BP 8.3 ± 11.6 mm Hg, diastolic BP 4.3 ± 9.3 mm Hg and between the oscillometric and UAC systolic BP 5.2 ± 11.9 mm Hg and diastolic BP ?0.8 ± 10.4 mm Hg. The MAP increased with increases in weight (35.3 ± 4.92 mm Hg/kg), post-menstrual age (?0.29 ± 1.41 mm Hg/week) and advanced gestational age at birth (13.12 ± 0.90 mm Hg/week). Oscillometric BP measurements are not equivalent to the intra-arterial (UAC or radial arterial) BP in ill neonates. The BP increases with increase in weight, gestational age at birth, and post-menstrual age in ill neonates. |
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Keywords: | Accuracy invasive blood pressure non-invasive blood pressure |
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