Indirect BP monitoring in the newborn. Evaluation of a new oscillometer and comparison of upper- and lower-limb measurements

Am J Dis Child. 1984 Aug;138(8):775-8. doi: 10.1001/archpedi.1984.02140460065021.


We compared simultaneous direct (aortic) and indirect (oscillometric) BP measurements in 19 patients admitted to a newborn intensive care unit. Two hundred six indirect measurements were obtained from an upper extremity in 14 patients, and 50 from a lower extremity in five other patients. A regression analysis of paired data over a wide range of BPs showed excellent correlation between measurements obtained with the automated oscillometer and intra-arterial catheters. The oscillometric BP correlated equally well in both upper and lower extremities. Simultaneous upper- and lower-extremity BP measurements were taken in seven infants with low birth weights during the first 12 days of life and in ten normal term 2-to 5-day-old infants. Contrary to some previous reports, systolic, mean, and diastolic pressures were virtually identical at both sites.

Publication types

  • Comparative Study

MeSH terms

  • Blood Pressure Determination / methods*
  • Extremities
  • Humans
  • Hypertension / diagnosis
  • Infant, Low Birth Weight
  • Infant, Newborn*
  • Oscillometry*