The uterocervical angle and its relationship with preterm birth

The Journal of Maternal-fetal & Neonatal Medicine : the Official Journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians
Alba Farràs LlobetElena Carreras Moratonas

Abstract

The objective of this study is to determine whether the uterocervical angle (UCA) correlates with the risk of spontaneous preterm birth (sPTB) < 34 weeks and assess its interobserver variability. Case-control study of 275 women including 34 who started labor spontaneously and gave birth before 34 weeks of gestation (preterm group) and 241 who gave birth at term (control group). Images used to report cervical length were re-measured for UCA. Mean UCA in the second trimester was wider in the preterm group (105.16°) compared with the control group (94.53°), p = .015. The intraclass correlation coefficient was 0.821 (95% CI: 0.74-0.97) for masked interobserver variability, which implies correct agreement among UCA measurements. Mean UCA increased from the first to the second trimester (84.2° versus 94.5°; p = .019). Wider UCA in the second trimester is related to sPTB. UCA measurement is a reproducible technique. UCA appears to increase from the first to the second trimester. Prospective studies, with ultrasound examinations aimed at measuring UCA in vivo, are needed to accurately assess the characteristics of this marker and its potential as a predictor of sPTB in clinical practice.

References

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Mar 29, 2016·American Journal of Obstetrics and Gynecology·Margaret DziadoszAshley S Roman
Aug 12, 2016·Fetal Diagnosis and Therapy·Alvaro Sepúlveda-MartínezMauro Parra-Cordero
Aug 30, 2016·The Journal of Maternal-fetal & Neonatal Medicine : the Official Journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians·Manel MendozaLuis Cabero

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Citations

May 19, 2018·The Journal of Maternal-fetal & Neonatal Medicine : the Official Journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians·Berna Aslan CetinGokhan Yildirim
Aug 8, 2018·The Journal of Maternal-fetal & Neonatal Medicine : the Official Journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians·Sergey V BarinovGalina V Dudkova
May 19, 2019·Acta Obstetricia Et Gynecologica Scandinavica·Manel Mendoza CobaledaElena Carreras
Mar 10, 2020·Journal of Obstetrics and Gynaecology : the Journal of the Institute of Obstetrics and Gynaecology·Rapphon SawaddisanAlan Geater
Apr 21, 2020·Acta Obstetricia Et Gynecologica Scandinavica·Alba Farràs LlobetElena Carreras
Jul 11, 2020·Acta Obstetricia Et Gynecologica Scandinavica·Kathleen GründlerJohannes Stubert
Oct 24, 2019·The Journal of Maternal-fetal & Neonatal Medicine : the Official Journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians·Manel MendozaElena Carreras
Jan 29, 2019·BioMed Research International·George DaskalakisVasilios Pergialiotis
Jan 29, 2021·International Journal of Gynaecology and Obstetrics : the Official Organ of the International Federation of Gynaecology and Obstetrics·Rasha E KhameesAhmed A Aboelroose
Mar 28, 2021·European Journal of Obstetrics, Gynecology, and Reproductive Biology·Marta Benito VielbaSergio Castán Mateo

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