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TEJANI NERGESH A. MD; MANN, LEON I. MD, FACOG; SANGHAVI, MAYA MD; BHAKTHAVATHSALAN, AMRUTHA MD, FACOG; WEISS, ROBERT R. MD, FACOG
Obstetrics & Gynecology: February 1977
Original Article: PDF Only
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Variable decelerations during the last 2 hours of labor were associated with an abnormally positioned umbilical cord at delivery in 52% of cases. In cases where an abnormally positioned umbilical cord was seen at delivery, 89% had been preceded by variable decelerations. Cord compression resulted in an A-V difference in pH that was significantly increased when compared to a control group. This was mainly due to a decrease in the pH of the umbilical artery. The pathophysiology of cord compression is discussed.

© 1977 The American College of Obstetricians and Gynecologists