The Effect of Birth Asphyxia on the Coagulation Status in Neonates


background: Birth asphyxia has multi system effect, which predisposes to coagulopathy by enhancing consumption of platelets & some clotting factors as a results of the associated sever hypoxemia, acidaemia & sepsisObjective: To study the effects of birth asphyxia & perinatal events on the coagulation status of newborn infants. Patients & Methods: Across sectional study was done on 27 neonates with birth asphyxia in AL-Zahraa teaching hospital in Najaf city from period of first of February 2012 to first of July 2012. Blood samples were collected from the neonates within the first 24 hrs. After birth and sent for investigations including PT, PTT, plasma fibrinogen and platelet count.Results: The study showed statistically significant effect of birth asphyxia on platelet count especially in severely asphyxiated neonates with Apgar score of 0 – 3 at 5 min after birth (plat. Count < 100,000 per mm3) in comparison to neonates with Apgar score of 4 – 6 at 5min after birth. Infants who have very low birth wt. (i.e. <1500 gms) had significantly lower platelet count (< 100,000 per mm3) than infants with birth wt.>1500 gmsBirth asphyxia had no significant effect on PT, PTT, or fibrinogen level. Other perinatal and prenatal variables examined as (sex, maternal hypertension, DM, mode of delivery gestational age) did not show any significant association with coagulation status.Conclusion: Thrombocytopenia (plat. <100.000 per mm3) is seen in neonates with Apger score (0-3) at 5 min. and in neonates with very low birth wt. <1500gms). No statistically significant relation between birth asphyxia and PT, PTT and plasma fibrinogen level.