The strength of correlation between umbilical cord pH and early neonatal outcome

R. Prasanna, P. Karthikeyan, M. Mani, P. Paramanantham, P. Sekar


Background: Umbilical artery gas parameters have been used reliably to detect intrauterine asphyxia.

Methods: We analyzed umbilical arterial gas parameters in depressed children and compared it with normal children.

Results: Nearly one third of depressed babies had low pH. Umbilical cord acidosis correlated with increased incidence in seizures (P=0.000), incidence of HIE (P=0.000), risk of intubation (0.001) and thrombocytopenia (0.008). Overall mortality was one fourth, but a significant association could not be ascertained. Also we can confirm that pH less than 7.00 is significant as per AAP and NNF rather than 7.20, defined by ACOG.

Conclusions: We conclude that a decrease in umbilical arterial pH among cases was significantly associated with increased risk of intubation and need for mechanical ventilation, seizures, Hypoxic ischemic encephalopathy.


Umbilical arterial pH, Perinatal asphyxia, Early neonatal outcome

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