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Abstract: TH-PO435

Office Blood Pressure Measurement (OBPM) in Children: The SPA Project

Session Information

Category: Hypertension and CVD

  • 1401 Hypertension and CVD: Epidemiology, Risk Factors, and Prevention


  • Ardissino, Gianluigi, Center for HUS Prevention, Control and Management, Milano, Italy
  • Ghiglia, Silvia, Cardiology Unit. Ospedale Policlinico, MILANO, Italy
  • Lava, Sebastiano A.g., University Children''s Hospital, Inselspital, Bern, Switzerland
  • Longhi, Selena, Center for HUS Prevention, Control and Management, Milano, Italy
  • Martelli, Laura, Center for HUS Prevention, Control and Management, Milano, Italy
  • Perrone, Michela, Center for HUS Prevention, Control and Management, Milano, Italy
  • Salice, Patrizia, Fondazione Policlinico IRCCS Ca' Granda Milano, MILANO, Italy
  • Piantanida, Sandra, Polo Materno Infantile- Ospedale F. del Ponte - Varese, COMERIO, Italy

Group or Team Name

  • The SPA Project

If blood pressure (BP) measurement still remains challenging in adults, it is even more in children. Current guidelines suggest to measure office BP with three readings and average them when the first BP is elevated otherwise to perform only one BP reading (AAP 2017) or to measure BP 3 times every 3 min using the average of the last two (ESH 2016).


Since 2010, we regularly perform unattended multiple OBPM (mOBPM) with a validated (OMRON M3) device: after 5 min rest, at least 10 automated readings are taken every 3 min on the non-dominant arm. Readings <5th or >95th centile and mOBPM with coefficient of variation (CV)>15% are discarded.


286 healthy, non-obese children (141 females; median BMI 15.4 Kg/m2 IQR 14.5-16.4), median age 5.7 (IQR 5.3-6.1) years, were analyzed. The median CVs of included mOBPMs were 7% (IQR 5-9) for systolic and 4% (IQR 3-6) for diastolic BP. The readings #1-10 were compared with the mean of all 10 measurements (Wilcoxon matched-paired-signed-rank-test, significance assigned at p<0.01). The first 3 measurements were significantly different from the mean, while the readings #4-10 were not. Based on the mean, only 11 subjects had a systolic or diastolic BP >90th centile (n=5 >95th c.le) while single measurement significantly over-estimated high BP (Fig.1).


Although most guidelines advice ≥2 BP readings, these findings suggest that mOBPM should include ideally 10, but at least 4 repeated measurements.