If you ask anybody about what can happen during infertility treatments, an answer that you will commonly come across is the high chances of having twins.
Yes, you read that right. Most fertility treatments that use fertility medications will heighten the chances of leading to conceiving twins. Twin pregnancies are the primary cause of pre-term delivery and that in turn is the main cause of infant death and morbidity.
IVF, on the other hand, is one of the safer treatment options because you can control the chance of a twin conception as the transfer takes place through a single embryo. Through this method you can drastically reduce the chance for a twin pregnancy, bringing it down to as low as less than 1%.
Some couples may decide to put two or more embryos into the uterus. While this increases a couple’s chances of getting pregnant, but it also increases their chance of twin pregnancy.
The best option is perhaps to test for abnormalities and then transfer a single, normal, healthy embryo. This way pregnancy rates are still high but the risk for twins is low.
Why is Single Embryo Transfer the Safer Option?
Infertility treatments have traditionally been associated with high multiple pregnancy rates, which is a result of difficulty with technology that made it less efficient.
So, in particular, in IVF or in-vitro fertilization, multiple embryos created in a laboratory would be transferred back to the uterus in order to improve the probability of a subsequent pregnancy. This was done with the understanding that typically not every embryo that is transferred is normal. Unfortunately, sometimes they are, and sometimes that can result in a very complicated pregnancy, particularly if it is triplets or more.
Although some women might feel lucky to have twins, the reality is that multiple pregnancies are a much more complicated and difficult pregnancy than a singleton pregnancy. A multiple pregnancy increases the risks of complications that can lead to permanent handicaps for the neonates that are born.
The industry has moved towards more single embryo transfer in order to decrease the probability of having multiple pregnancies and make it a much safer pregnancy for the women and their offspring. The use of embryo biopsy and implantation techniques to test embryos prior to putting them back into the uterus to assure that they are normal reduces the need to transfer multiple embryos.
So, it’s a combination of the advancement and technology that has given fertility experts better certainty about how to treat patients and also for the transfer experience to be made safer.
What Are The Success Rates In Single Embryo Transfers?
Single embryos transfer is usually an option for couples who do not have surplus embryos that can be frozen. It is also done in cases where embryos had been previously frozen but only one survived.
Having a single embryo for transfer does not automatically mean the result will not be fruitful. In fact, many couples have experienced positive results through single embryo transfer.
In the past and for a long time, fertility experts had the goal of using a single embryo leading to a single and healthy pregnancy. However, success rates were compromised if only one embryo was transferred, so couples did want to maximize their chances and transfer multiple embryos. With improvements in technology and in-vitro fertilization, fertility experts have improved their ability to select embryos and improve the safety and success of IVF.
Visit MotherToBe, a leading fertility centre in Hyderabad where we can help you with your decision on single embryo transfers. A team of expert fertility specialists guided by Dr Vyjayanthi will be able to help you with consulting you on the best IVF treatment approach that is best suited to your condition.