Hypercoagulability and DIC in high-risk infants

Area of Science:

• Neonatal Medicine
• Hematology
• Perinatology

Background:

• Neonatal asphyxia is a critical condition associated with significant morbidity.
• Evidence suggests a link between asphyxia and coagulopathies, specifically disseminated intravascular coagulation (DIC).
• Understanding hemostatic alterations in asphyxiated newborns is crucial for risk stratification and management.

Purpose of the Study:

• To investigate the presence and extent of disseminated intravascular coagulation (DIC) in newborns experiencing asphyxia.
• To correlate specific hemostatic parameters with the severity of asphyxia, as indicated by Apgar scores.
• To evaluate primary hemostasis in asphyxiated neonates.

Main Methods:

• Assay of multiple hemostatic parameters in venous umbilical cord blood from 93 infants.
• Analysis included factor XIII, thrombin-antithrombin (TAT) complexes, D-dimer, fibrin(ogen) degradation products (FDP), and soluble fibrin monomer complexes (SFMC).
• Primary hemostasis was assessed using a Thrombostat 4000 device.

Main Results:

• Significantly lower levels of factor XIII and higher levels of TAT complexes, D-dimer, FDP, and SFMC were observed in asphyxiated newborns.
• Lowest factor XIII levels correlated with the lowest Apgar scores.
• A significant negative correlation was found between SFMC levels and Apgar scores, indicating impaired primary hemostasis in affected infants.

Conclusions:

• The study strongly suggests the presence of disseminated intravascular coagulation (DIC) in newborns suffering from asphyxia.
• Specific hemostatic markers can effectively indicate the severity of DIC and correlate with clinical outcomes like Apgar scores.
• These findings highlight the importance of assessing coagulation status in asphyxiated neonates.