Sentences with phrase «multiple embryos»

This is in part due to lack of regulation, but also results from patients and physicians aggressively transferring multiple embryos at once in the hope of achieving any pregnancy.

A woman carrying multiple embryos has a greater risk of complications during pregnancy and delivery, which is more likely than a single birth to be by C - section.

So, patients are in a position where they feel they have to transfer multiple embryos and put them at a higher risk of having a multiple pregnancy.

In this case the actomyosin failed to contract, leading to the accumulation of multiple embryos in the spermatheca.

The researchers found that at 443 clinics (93 percent of all U.S. fertility centers) the annual number of donor oocyte cycles performed in the United States increased from 10,801 in 2000 to 18,306 in 2010, as did the percentage of such cycles that involved frozen oocytes or embryos (vs. fresh)(26.7 percent to 40.3 percent) and that involved elective single - embryo transfer (vs. transfer of multiple embryos)(0.8 percent to 14.5 percent).

Doctors can also implant multiple embryos in a mother's uterus through in vitro fertilisation.

With NPT, there is no destruction of embryos or risk of a high multiple pregnancy because the embryos are not created in a lab with multiple embryos transferred into the woman.

Although infertility treatments have increased the rate of multiple birth, they have not diluted the expected incidence of identical twins even though multiple embryos are often produced and implanted.

«What we want this technology to achieve is confidence to switch to single embryo transfers instead of the practice of transferring multiple embryos without [an accompanying] reduction in pregnancy rate,» study co-authors Gayle Jones and David Cram, senior research scientists in immunology and stem cells at Monash University in Australia, wrote in an e-mail.

Multiple embryo time - lapse imaging of zebrafish development.

The high cost of IVF is part of the reason people often implant multiple embryos, Adashi said.

Several risk factors have been proposed, including abnormalities in the Fallopian tubes (an indication for IVF), transfer of multiple embryos, or the treatment technique itself.

That's because it was standard practice to transfer multiple embryos to maximize the chance of pregnancy.

After the removal and fertilization of eggs with the use of in vitro fertilization (IVF), some women with multiple embryos (fertilized eggs) may decide to have a single embryo transferred to the womb even when multiple embryos are available (elective single embryo transfer eSET).

In this case, it is not just that multiple embryos may be implanted; the transferred embryos can sometimes divide and lead to monozygotic twins.

Sometimes with the in vitro fertilization procedure, multiple embryos are implanted into the womb, increasing the chances of a successful pregnancy and live birth.

In IVF, doctors often intentionally fertilize more than one egg in the lab and then implant those multiple embryos in a woman's womb, in hopes that at least one will develop successfully.

The second significant risk factor was multiple embryos transferred in treatment.

These might include requests to select the sex of an embryo for nonmedical purposes or to transfer multiple embryos, despite the increased risks.

Also this technique is only likely to be useful in a small proportion of cycles in which embryos are cultured to the blastocyst stage and multiple embryos are then available for selection.