2006 delivery success*
* A comparison of clinic success rates may not be meaningful because patient medical characteristics and treatment approaches vary from clinic to clinic.
How to understand success rates?
Although breaking down success by age has become a standard in fertility statistics, it is by no means the most important parameter. Dr. Navot, the founder of the Fertility Institute has shown with his invention of the clomiphene challenge test and establishment of the crucial link between FSH levels and ovarian reserve, that FSH determines successful delivery rates, above and beyond age , (The Lancet, 1987). Namely the higher baseline FSH is, or the higher FSH rises subsequent to clomiphene (clomid) stimulation, the less likely is the person to be able to conceive and carry to term. While most fertility practitioners have adapted FSH measurement, they use elevated levels to CANCELL IVF cycles. Dr. Navot the discoverer of the link between FSH and Fertility Potential, uses FSH to COUNSELL couples regarding their potential success. While this personalized care allows virtually all couples to go through fertility treatment, it negatively affects IVF success rates. Simply put, if only couples with the best prognosis are allowed to go through IVF, astounding success rates can be achieved. Each couple however, with 15% chance of success will "spoil" the statistics for their age group in the program. We firmly believe that it is not the fertility specialists place to deny that 15% chance to a couple who is willing to keep fighting for a family, despite a reduced chance of success.
The figure in this page illustrates also delivery success in cycles with cryopreservation and egg donation. While frozen embryos are rarely available in older women and those with a high FSH, couples who are lucky enough to have frozen embryos, enjoy an average of an additional 30-40% delivery rate from a single cycle of egg retrieval. While overall success is extremely dependent on patient selection, frozen thawed embryos' implantation and egg donation success is reflective of and depends on the high quality of the Embryology Laboratory and meticulous clinical practice.