Related Experiment Video
Updated: Aug 21, 2026
Minimally Invasive Embryo Transfer and Embryo Vitrification at the Optimal Embryo Stage in Rabbit Model
Published on: May 16, 2019
Bed rest versus free mobilisation following embryo transfer: a prospective randomised study
Zouhair O Amarin1, Basil R Obeidat
1Department of Obstetrics and Gynaecology, Jordan University of Science and Technology, Irbid, Jordan Fakeeh Hospital, Jeddah, Saudi Arabia.
Objective:
To evaluate the efficacy of two clinical methods of post-embryo transfer protocols in patients undergoing in vitro fertilisation.
Design:
Prospective, randomised clinical trial.
Setting:
Hospital-based clinic for reproductive medicine.
Sample:
Women under 40 years of age who were undergoing in vitro fertilisation with GnRH pituitary down-regulation and controlled ovarian hyperstimulation.
Methods:
Patients were randomised to rest for either 1 or 24 hours after embryo transfer.
Main Outcome Measure:
Clinical pregnancy per cycle rate (the percentage of cycles started that demonstrated a live fetus on ultrasound examination performed at six or seven weeks of gestation).
Results:
The clinical pregnancy rates were 21.5% for the 1-hour and 18.2% for the 24-hour post-embryo transfer groups. The implantation rate per embryo was significantly higher in the 1-hour group (14.4%) than in the 24-hour group (9%).
Conclusion:
One-hour and 24-hour rest post-embryo transfer result in comparable rates of clinical pregnancy. However, 24-hour rest results in reduced implantation rate per embryo.
