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A new technique for fast and safe collection of urine in newborns
  1. María Luisa Herreros Fernández,
  2. Noelia González Merino,
  3. Alfredo Tagarro García,
  4. Beatriz Pérez Seoane,
  5. María de la Serna Martínez,
  6. María Teresa Contreras Abad,
  7. Araceli García-Pose
  1. Pediatrics Department, University Infanta Sofía Hospital, San Sebastián de Los Reyes, Madrid, Spain
  1. Correspondence to Dra Maria Luisa Herreros Fernández, Pediatrics Department, University Infanta Sofía Hospital, Paseo de Europa, 34, San Sebastián de Los Reyes, Madrid 28702, Spain; marisaherrerosfernandez{at}


Aim To describe and test a new technique to obtain midstream urine samples in newborns.

Design and methods This was a prospective feasibility and safety study conducted in the neonatal unit of University Infanta Sofía Hospital, Madrid. A new technique based on bladder and lumbar stimulation manoeuvres was tested over a period of 4 months in 80 admitted patients aged less than 30 days. The main variable was the success rate in obtaining a midstream urine sample within 5 min. Secondary variables were time to obtain the sample and complications.

Results This technique was successful in 86.3% of infants. Median time to sample collection was 45 s (IQR 30). No complications other than controlled crying were observed.

Conclusions A new, quick and safe technique with a high success rate is described, whereby the discomfort and waste of time usually associated with bag collection methods can be avoided.

  • Urine sample
  • Urinary tract infections
  • Bladder stimulation
  • Newborns

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