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Success Rates

Fertility Treatment Success Rates

Sample ImageThe Reproductive Science Center (RSC) of New England has consistently performed at or above the national average rates for clinical pregnancies and live births resulting from assisted reproductive technologies (ART). And, we have done so while also maintaining high rates for single embryo transfers. Our pregnancy, birth, and single embryo transfer rates are reasons why RSC is nationally recognized as a state-of-the-art fertility center.

 

RSC New England's pregnancy rate for women under 35 years of age recorded for 2009 is 47.5%, in which 41.2% of cycles were single embryo transfers.

 

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Single Embryo Transfer

Since 1995, RSC New England fertility specialists and embryologists have been dedicated, through infertility research and advanced therapies, to continuously improve pregnancy and birth rates.  Reducing the potential for multiple births has been an essential part of RSC's Clinical Quality Improvement Program -- an example of why the clinical results of the Reproductive Science Center of New England are highly regarded. RSC New England has been consistently increasing the numbers of single embryo transfers every year and is among the highest ranking fertility centers in the country emphasizing single embryo transfer.

Understanding SART Success Rates

There are many ways to measure and compare  fertility treatment success. Often, published success rates are misunderstood and, sometimes, misleading. For couples entering ART, the percentage of patients who take home a baby is most important. However, there are three stages to assisted reproductive technology ART and , for a variety of reasons, not every couple reaches each stage of treatment.  The national standard, therefore, is to report and measure success in three categories.

  • Clinical Pregnancy Rate per Cycle Initiated - is the number of clinical pregnancies divided by the total number of women who initiated treatment.
  • Clinical Pregnancy Rate per Retrieval - is the number of clinical pregnancies divided by the number of egg retrievals. Not all women who initiate a cycle have a retrieval. Some ART cycles initiated are canceled, mostly due to a poor response to fertility drugs.
  • Clinical Pregnancy Rate per Transfer - is the number of clinical pregnancies divided by the number of women who had an embryo transfer. Not all women who have an egg retrieval have an embryo transfer.

Note: A clinical pregnancy is defined as the presence of one or more gestational sacs (with a beating heart) in the woman's uterus, confirmed by ultrasound examination. A comparison of clinical success rates may not be meaningful because patient medical characteristics and treatment approaches may vary from clinic to clinic.

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RSC New England participates in the IntegraMed Fertility Network blog at attainfertility.com.