Our Center : Success Rates

SART Success Rates

Success Rates: Terminology

Cycle Start

Cycle Start refers to all attempts at ovulation induction that are intended to lead to an IVF cycle. Cancellation of the cycle before the egg retrieval is attempted may occur if the stimulation is suboptimal. Some programs may not allow older women or men with a severe sperm abnormality to attempt an IVF cycle because these patients are more likely to have cycles canceled due to failure of ovulation induction and fertilization, respectively. Because our infertility treatment centers have a very high IVF pregnancy rate with ICSI, we accept men with severe sperm abnormalities, and we have been very successful even when sperm counts are under 100,000 with poor motility, as well as in cases of a failed vasectomy reversal.

IVF Egg Retrieval

IVF Egg Retrieval refers to the actual attempt to obtain the oocytes/eggs from the ovarian follicles. In order to develop a viable embryo, an egg retrieval procedure must be performed and fertilization with the sperm must occur in the embryology laboratory.

A Clinical Pregnancy

A Clinical Pregnancy refers to the identification of a pregnancy sac in the uterus. Unfortunately, there are times when a miscarriage may still subsequently occur. It is, therefore, important for patients to consider the live birth rate when evaluating a center's statistics.

Live Birth Rate

Live Birth Rate Per Transfer is known as the birth of one or more live infants as a result of an embryo transfer. This statistic can provide some insight into the probability of having a baby once a retrieval is performed.

Clinical Pregnancy Rate

Clinical Pregnancy Rate Per Embryo Transfer is the statistic that reports the number of pregnancy sacs that appear in the uterus and compares it with the number of embryos that were transferred into the uterus. The clinical pregnancy rate per embryo transfer may be a less significant statistic since it does not take into account the likelihood of miscarriage. In addition, cancelled cycles before retrieval or due to failure of fertilization are not factored into this statistic. The clinical pregnancy rate per embryo transfer can provide insight into the quality of a program, physician proficiency and is frequently used in the medical literature.

Donor Egg

IVF Cycles utilizing oocytes from anonymous or known donors. *NOTE: A comparison of clinic success rates may not be meaningful because patient medical characteristics and treatment approaches may vary from clinic to clinic.

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