Related Experiment Videos
The umbilical coiling index in normal pregnancy.
C C van Diik1, A Franx, M W M de Laat
1Department of Obstetrics, University Medical Center, Utrecht, The Netherlands.
Summary
This study establishes reference values for the umbilical coiling index (UCI) in healthy pregnancies. The average UCI was 0.17 coils/cm, providing a standard for interpreting umbilical cord coiling in various pregnancy types.
Area of Science:
- Perinatal Medicine
- Obstetrics
- Fetal Development
Background:
- The umbilical coiling index (UCI) is a measure of umbilical cord development.
- Establishing reference values for UCI in uncomplicated pregnancies is crucial for accurate clinical interpretation.
- Previous studies may not have exclusively focused on uncomplicated pregnancies.
Purpose of the Study:
- To determine reference values for the umbilical coiling index (UCI) in uncomplicated pregnancies.
- To establish a standard for interpreting umbilical coiling patterns.
- To assess the correlation of UCI with various maternal and neonatal factors.
Main Methods:
- Collected umbilical cords from 122 liveborn singleton infants from uncomplicated pregnancies.
- Calculated the umbilical coiling index (UCI) as coils per centimeter of cord length.
- Analyzed correlations between UCI and maternal age, parity, gestational age, delivery mode, infant sex, and birth weight.
Main Results:
- The mean UCI was 0.17 (SD 0.009) coils/cm.
- The frequency distribution of UCI was skewed to the right.
- No significant correlations were found between UCI and maternal or infant factors examined.
Conclusions:
- This study provides the first reference UCI values specifically from uncomplicated pregnancies.
- The established mean UCI can serve as a standard for interpreting umbilical coiling.
- This reference aids in the proper assessment of umbilical coiling in pregnancies with complications.