Category: Intrapartum Fetal Assessment
Poster Session III
A retrospective cohort study of 100 deliveries complicated with IUGR, who delivered during 2018, was conducted.
Cases with known major anomalies, maternal infections, pregnancies complicated by diabetes mellitus, pre-eclampsia, and meconium-stained amniotic fluid were excluded from the study. Non-vertex and elective cesarean deliveries were excluded as well.
Total deceleration and acceleration areas were calculated as the sum of the areas within the deceleration and acceleration, respectively. Surfaces were calculated as: duration times depth divided by two. The CTG analysis and interpretation were performed by a researcher, blinded to neonatal outcomes.
Results:
Median cord blood pH was 7.28. Seventeen percent and 13% had a low Apgar score ( < 7) at one and five minutes, respectively. A significant correlation between the total deceleration area and the cord blood pH was found. By comparing the cord blood pH in deliveries with a total deceleration area that was above and below the median total deceleration area, we demonstrated a significant difference between the categories. We also found a significant association between the cumulative duration of the decelerations and cord blood pH.
In addition, a significant correlation was found between the total acceleration area and umbilical cord blood pH.
Conclusion:
A significant association between cord blood pH levels and total deceleration area, as well as other CTG characteristics, in neonates with IUGR. Future studies using real- time analysis and machine-learning techniques of CTG, may provide population specific customized threshold values, including for total surface area and may achieve better outcomes.
Yael Geva, MD (she/her/hers)
Staff physician in obstetrics
Department of Obstetrics and Gynecology, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev
Beer Sheva, Israel, Israel
Neta Geva, MD
Pediatric Ward, Saban Pediatric Medical Center, Soroka University Medical Center, Ben Gurion University of the Negev
Ein Habsor, HaDarom, Israel
Lior Katz, MD
Pediatric Ward, Rambam Medical Center
Haifa, Israel, Israel
Reut Rotem, MD, MPH
Resident
Division of Obstetrics and Gynecology, Shaare Zedek Medical Center, Hebrew University Medical School
Jerusalem, Israel, Israel
Adi Y. Weintraub, MD
Department of Obstetrics and Gynecology, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev
Beer Sheva, Israel, Israel
Shimrit Yaniv Salem, MD
Department of Obstetrics and Gynecology, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
Klachim, HaDarom, Israel