Open AccessContinuous Fetal Scalp Tissue pH Monitoring During Labor: An Analysis of 152 Consecutive Cases
Author(s) -
Weber Tom
Publication year - 1980
Publication title -
acta obstetricia et gynecologica scandinavica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.401
H-Index - 102
eISSN - 1600-0412
pISSN - 0001-6349
DOI - 10.3109/00016348009155399
Subject(s) - medicine , scalp , fetal monitoring , fetus , obstetrics , cardiotocography , pregnancy , gynecology , surgery , biology , genetics
Continuous Scalp Tissue pH Monitoring was Performed in 152 Consecutive Cases. The success rate was 53 per cent. The average duration of pH monitoring was 151 minutes (range 0‐609 minutes). A good correlation was found between tissue pH at delivery and blood pH in the umbilical artery (r = 0.78) and vein (r = 0.67). In no case with normal tissue pH (more than 7.20) and abnormal CTG was the Apgar score less than 8 one minute after delivery. A normal tissue pH almost always means that the fetus is not asphyxiated, but a low tissue pH reading may be caused by other factors than acidosis of the fetus. Continuous pH monitoring during labor remains a research method.