Long-term ongoing coagulopathy in premature infants with respiratory distress syndrome

Muammer Buyukinan1, Deniz Yilmaz, Mehmet Yalaz

  • 11Division of Neonatology, Department of Pediatrics, Ege University Faculty of Medicine, Izmir, Turkey.

Insights

Infants with respiratory distress syndrome (RDS) show long-term coagulation issues. Their antithrombin activity remained low, indicating persistent coagulopathy over six months.

Area of Science:

  • Neonatalogy
  • Hematology
  • Pediatric Critical Care

Background:

  • The acute phase of respiratory distress syndrome (RDS) involves an activated intravascular coagulation system.
  • Long-term evaluation of coagulation in premature infants with RDS is lacking.

Purpose of the Study:

  • To assess coagulation system activity in premature infants with RDS over a six-month period.
  • To compare coagulation parameters in infants with RDS to healthy premature infants (HPIs), healthy mature infants (HMIs), and laboratory controls.

Main Methods:

  • Longitudinal study over six months involving cord and venous blood sampling at birth, one month, and six months.
  • Measurement of Protein C (PC), free protein S (f-PS), antithrombin (AT) activities, thrombin-antithrombin (TAT) complex, prothrombin fragment 1 + 2 (PF1 + 2), and fibrinogen levels.
  • Comparison of coagulation markers between RDS infants, HPIs, HMIs, and controls.

Main Results:

  • PC, f-PS, d-dimer, and fibrinogen levels were similar between HPI and RDS groups throughout the study.
  • Anticoagulant proteins increased in HMIs and HPIs within six months.
  • Infants with RDS exhibited persistently lower AT activity and significantly higher TAT and PF1 + 2 levels at one and six months.

Conclusions:

  • Infants with RDS experience long-term consumption coagulopathy.
  • Persistent alterations in coagulation markers suggest ongoing thrombotic risk in infants with RDS.
  • Further research is warranted to explore therapeutic interventions for long-term coagulation disturbances in RDS.

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