Related Experiment Video
Updated: Jul 9, 2026
Electromyometrial Imaging of Uterine Contractions in Pregnant Women
Published on: May 26, 2023
Antepartum uterine contraction patterns in twin pregnancies with and without preterm labor and delivering before or
Ana Rachel Hernández1, Víctor Hugo González-Quintero, Niki Istwan
1Department of Obstetrics and Gynecology, University of Miami, Miami, FL 33101, USA.
Objective:
The purpose of this study was to identify differences in antepartum uterine contraction frequency (UCF) in twin pregnancies with and without preterm labor (PTL).
Study Design:
Twin gestations enrolled for outpatient surveillance with twice daily electronic uterine activity monitoring and telephonic nursing assessment, without interventional delivery were identified. Mean UCF for each gestational week was compared between women without PTL or preterm delivery (PTD) < 36 weeks (controls) and those with a PTL diagnosis delivering at < 36 weeks (PTL/PTD group), and those with PTL with delivery > or = 36 weeks (PTL/GAD > or = 36 group).
Results:
Data from 7891 patients with 267,840 monitored hours were analyzed. UCF at each gestational week was significantly higher for patients experiencing PTL with or without PTD compared to control. UCF was similar for patients with PTL with or without PTD < 36.
Conclusion:
Twin pregnancies complicated with PTL have a higher UCF than those that do not experience PTL. Outpatient surveillance may be beneficial in this population.
More Related Videos
09:51Model Surgical Training: Skills Acquisition in Fetoscopic Laser Photocoagulation of Monochorionic Diamniotic Twin Placenta Using Realistic Simulators
Published on: March 21, 2018
09:04Guide Wire Assisted Catheterization and Colored Dye Injection for Vascular Mapping of Monochorionic Twin Placentas
Published on: September 5, 2011