When it comes to embryo transfers, which is better: fresh or frozen?
Many other fertility clinics have adopted the practice of routine freeze-all cycles, rather than transferring a fresh embryo, with the belief that it will improve the pregnancy outcomes.
This is, in fact, not the case. Recent research has shown that the use of frozen embryos over the use of fresh does not increase the chances of a successful pregnancy, in fact published data has shown there is no significant difference.
The study that was published in the British Medical Journal this month analysed the cycles of almost 500 patients who underwent IVF treatment, and found that there was no significant difference between the percentage of women who fell pregnant in the frozen embryo group compared to the women who underwent a fresh embryo transfer.
Opting for a freeze-all cycle still remains a perfectly safe alternative for women undergoing ART when there is a risk of ovarian hyperstimulation syndrome (OHSS), and this study should provide some peace of mind to patients who are faced with this situation.