title: Comparison between oscillometric and intra-arterial blood pressure measurements in ill preterm and full-term neonates.
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.
authors: Division of Pediatric Nephrology, Children's Mercy Hospitals and Clinics, University of Missouri-Kansas City, Kansas City, MO, USA. Electronic address: shwetal_lalan@hotmail.com.
authors: Shwetal
authors: S
authors: Lalan
authors: Division of Pediatric Nephrology, Children's Mercy Hospitals and Clinics, University of Missouri-Kansas City, Kansas City, MO, USA.
authors: Douglas
authors: D
authors: Blowey
mesh_terms: D062186:Arterial Pressure / Q000502:physiology*; D001795:Blood Pressure Determination / Q000379:methods*; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases / Q000503:physiopathology*; D007234:Infant, Premature; D007363:Intensive Care Units, Neonatal; D008297:Male; D009991:Oscillometry / Q000379:methods*; D011446:Prospective Studies
keywords: Accuracy; invasive blood pressure; non-invasive blood pressure