Placental Compared With Umbilical Cord Blood to Assess Fetal Blood Gas and Acid-Base Status

Autor: Alison Nodwell, Bryan S. Richardson, Michael W. Ross, Lesley Carmichael
Rok vydání: 2005
Předmět:
Zdroj: Obstetrics & Gynecology. 105:129-138
ISSN: 0029-7844
DOI: 10.1097/01.aog.0000146635.51033.9d
Popis: OBJECTIVE: To estimate the extent to which placental cord blood sampled from the umbilical cord at its insertion into the placenta and after delivery of the placenta, is in agreement with umbilical cord blood sampled from a damped segment of the umbilical cord after delivery of the infant, for the assessment of fetal blood gas, acid-base status, and hemoglobin levels at birth. METHODS: Forty-eight patients were studied with arterial and venous blood sampling from the umbilical cord and from the placental cord insertion, with subsequent measurement of blood gases, pH, base excess, O 2 saturation, and hemoglobin. The relationships of corresponding measurements from the placental and umbilical vein and from the placental and umbilical artery were analyzed using regression analysis, paired analysis of grouped means, and by estimating limits of agreement. RESULTS: The relationships between placental and umbilical cord blood measurements were described using a linear mathematical model, and although respective measurements were all significantly related (P
Databáze: OpenAIRE