Zouhair O Amarin1, Basil R Obeidat. 1. Department of Obstetrics and Gynaecology, Jordan University of Science and Technology, Irbid, Jordan Fakeeh Hospital, Jeddah, Saudi Arabia.
Abstract
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.
RCT Entities:
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.
Authors: Kelly R Evenson; Kathryn C Calhoun; Amy H Herring; David Pritchard; Fang Wen; Anne Z Steiner Journal: Fertil Steril Date: 2014-02-10 Impact factor: 7.329