Umbilical cord arterial base deficit and arterial pH as predictors of adverse outcomes among term neonates.

Objective: To determine the importance of arterial pH and arterial base deficit (ABD) for predicting adverse outcomes among all term neonates, regardless of acidemic status.

Methods: The present observational cohort study included consecutive term, non-anomalous singleton neonates with validated paired cord gas data at a single UK teaching hospital between June 23, 2005, and December 31, 2009. Outcomes included encephalopathy (Sarnat grade 2-3) and/or death; 5-minute Apgar score below 7; a composite neurologic adverse outcome; and systemic involvement.

Arteriovenous differences in cord blood gas analysis and the prediction of adverse neonatal outcome.

Introduction: The aim of this paper was to determine whether arteriovenous differences of pH and pCO are useful predictors of adverse neonatal outcome in acidemic neonates.

Material And Methods: An established database of 8759 term, singleton, non-anomalous neonates with validated cord gases and outcomes [Encephalopathy (Grade 2/3), Apgar <7 at five minutes and composite neonatal outcomes of neurological and systemic involvement] was used. Analysis was of the cohort of the 520 acidemic (arterial pH <7.