Posts Tagged ‘Blastocyst’

RPMG studying financial incentives for eSET

Friday, October 30th, 2009

The LA Times article mentioned in the previous post shows the non-signficant difference in success rates between single- and double embryo transfers in a study from Sweden. Most impressive is the reduction in potentially complicated multiple pregnancies by transferring one embryo which should be an incentive for appropriate couples to select this option.

But in most of the U. S., couples are faced with more than the disappointment of a small increment  in the chance of a failed cycle. In most European countries, IVF is covered by the national health service so an additional cycle is less of a financial burden. In non-mandated states in the U.S, the couple is also faced with the cost of another fresh or frozen embryo cycle.

Our success rates in good prognosis patients who would be candidates to consider an eSET, our success rates are better than reported in the Swedish study and the difference in live birth rate between the two groups should be small.

In order to encourage couples to choose the single embryo option we are studying financial incentives to reduce the impact of a possible failed cycle which may not have occurred if two embryos had been transferred.

We would like to hear what financial incentive would help you choose a single embryo transfer if the difference in success rate was not statistically significant. You can post your responses to this blog.

Sex Ratio and Blastocyst Transfer

Monday, October 26th, 2009

One frequent question I hear is, "Does doing a blastocyst transfer increase my chance of having a boy." Urban legend has it that there is a greater chance of a boy with a blastocyst transfer because male embryos supposedly develop more quickly than females.

Now a study published in the October 2009 edition of "Fertility and Sterility" shows that "male embryos do not grow faster than female embryos in culture. Blastocyst transfer does not result in a sex-ratio imbalance in resulting offspring." This study from Australia followed the resuts of 435 blastocyst transfers and reached the conclusion that there is no increase in male births.
 

Blastocyst Transfer

Monday, January 30th, 2006

Blastocyst Transfer Update-2006 By David R. Meldrum, M. D., Gregory F. Rosen, M. D. and Bill Yee, M. D. Reproductive Partners Medical Group, Inc. Beverly Hills, Long Beach and Redondo Beach, California

Typically, embryos from in vitro fertilization are transferred back into a woman’s uterus at the 4- to 8-cell stage two to three days after egg retrieval. It has been customary to transfer more than 1 of these early developing embryos in order to maximize the chance of pregnancy. Unfortunately, this practice also increases the risk of multiple pregnancies, i.e. twins, triplets or more. (more…)