Neonatal clinical blood sampling led to major blood loss and was associated with bronchopulmonary dysplasia

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Abstract

Aim: Studies indicate that reduced foetal haemoglobin levels are related to increased neonatal morbidity rates. This study investigated the relationships between sampling-related blood loss and adult blood transfusions administered during postnatal days 1-14 and the development of severe neonatal morbidities in extremely preterm infants born before 28 weeks of gestation. Methods: The medical files of 149 extremely preterm infants born at two university hospitals in Sweden from 2013 to 2018 were investigated. Results: Blood sampling resulted in a 58% depletion of the endogenous blood volume postnatal days 1-14 (median 40.4 mL/kg, interquartile range 23.9-53.3 mL/kg) and correlated with the adult erythrocyte transfusion volume (rS = 0.870, P <.001). Sampling-related blood loss on postnatal days 1-7, adjusted for gestational age at birth and birth weight standard deviation score, was associated with the development of bronchopulmonary dysplasia (BPD) (odds ratio by a 10-unit increase 2.4, 95% confidence interval 1.1-5.4) (P =.03). No associations were found between blood sampling and intraventricular haemorrhage or necrotising enterocolitis in the full statistical model. The largest proportion of sampling-related blood was used for blood gas analyses (48.7%). Conclusion: Diagnostic blood sampling led to major endogenous blood loss replaced with adult blood components and was associated with the development of BPD.

Detaljer

Författare
  • William Hellström
  • Linnéa Forssell
  • Eva Morsing
  • Karin Sävman
  • David Ley
Enheter & grupper
Externa organisationer
  • Skåne University Hospital
  • Queen Silvia Children’s Hospital
  • Göteborgs universitet
  • Lund University
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Pediatrik

Nyckelord

Originalspråkengelska
TidskriftActa Paediatrica, International Journal of Paediatrics
StatusE-pub ahead of print - 2019 sep 10
PublikationskategoriForskning
Peer review utfördJa