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Plasma thrombomodulin levels in early respiratory distress syndrome
M Yurdakök1, S Yiğit, D Aliefendioğlu
1Department of Pediatrics, Hacettepe University Faculty of Medicine, Ankara, Turkey.
Insights
Plasma thrombomodulin levels were similar in preterm infants with and without respiratory distress syndrome (RDS). This suggests normal levels in early RDS stages before severe vascular damage and disseminated intravascular coagulation (DIC).
Area of Science:
- Neonatal Medicine
- Pediatric Critical Care
- Hematology
Background:
- Infants with respiratory distress syndrome (RDS) experience hemodynamic changes, increasing risk of microvascular damage.
- Disseminated intravascular coagulation (DIC) is common in preterm infants with advanced RDS.
- The plasma status of thrombomodulin in preterm infants with RDS is not well-established.
Purpose of the Study:
- To investigate plasma thrombomodulin levels in preterm infants during the early hours of life.
- To determine if plasma thrombomodulin levels differ between infants who develop RDS and those who do not.
Main Methods:
- A cohort of 25 preterm infants was studied within the first few hours of life.
- Plasma thrombomodulin levels were measured in infants who did or did not develop RDS.
- The Mann-Whitney U Test was used for statistical comparison between groups.
Main Results:
- Mean plasma thrombomodulin levels were not significantly different between infants with RDS (8.12 +/- 10.20 ng/ml) and those without RDS (18.30 +/- 22.77 ng/ml).
- The observed difference in means was not statistically significant (p > 0.05).
Conclusions:
- Plasma thrombomodulin levels appear to be normal in the earlier stages of RDS.
- These findings suggest that significant vascular damage and DIC may not yet be present in early-stage RDS.
- Further research is needed to understand thrombomodulin's role as RDS progresses.
Abstract:
Infants with respiratory distress syndrome (RDS) undergo hemodynamic alterations in both the pulmonary and systemic vascular beds that predispose these infants to microvascular damage. In addition, disseminated intravascular coagulation (DIC) is frequently encountered in preterm infants with advanced RDS. In preterm infants with RDS, the plasma status is not known. Therefore, we studied plasma thrombomodulin levels in 25 preterm infants who did or did not develop RDS within the first few hours of life. The mean plasma thrombomodulin levels were found to be similar in the two groups (8.12 +/- 10.20 ng/ml vs. 18.30 +/- 22.77 ng/ml, respectively, p > 0.05 by Mann-Whitney U Test). It seems that plasma thrombomodulin levels are normal in the earlier stages of RDS before the occurrence of severe vascular damage and DIC due to hypoxemia.