What is meant by multiple gestation?
What is meant by multiple gestation?
Multiple gestation is pregnancy with more than one baby at a time. Examples include pregnancy with twins, triplets, and quadruplets. Multiple gestation occurs in approximately three percent of pregnancies. It is a type of high-risk pregnancy. Delivering twins, triplets, or more requires extra care.
How are the risks of multiple gestations minimized?
The best method to avoid multiple births in IVF–embryo transfer (IVF–ET) is obviously to transfer only one embryo.
What is multiple zygote?
chimera, in genetics, an organism or tissue that contains at least two different sets of DNA, most often originating from the fusion of as many different zygotes (fertilized eggs).
What are multiple fetuses called?
Expecting Twins or Triplets. If you’re pregnant with more than one baby, it’s called a multiple birth. Two babies are twins and three are triplets. Multiple pregnancies are becoming more common as more women are using fertility treatments and getting pregnant at an older age.
What causes multiple gestation?
Multiple pregnancy usually happens when more than one egg is fertilized. It also can happen when one egg is fertilized and then splits into 2 or more embryos that grow into 2 or more babies. When one fertilized egg splits into 2, the babies are called identical twins.
How do multiple gestation pregnancies occur?
Multiple pregnancies occur when more than one embryo implants in your uterus (womb). This can happen if you release more than one egg during the menstrual cycle and each egg is fertilised by a sperm. Sometimes, a fertilised egg spontaneously splits into 2, resulting in identical embryos.
How can I prevent multiple pregnancies?
Multiple pregnancies seem to be prevented by in vitro fertilisation with single embryo transfer and in vitro fertilisation in a modified natural cycle, but this will be acceptable only if these interventions are as effective as intrauterine insemination with controlled ovarian hyperstimulation in terms of live birth …
How can I avoid multiple pregnancy IVF?
An obvious way to reduce this high twin rate would be to transfer only one embryo. This would require that cryopreservation of the supernumerary embryos be efficacious enough so that the chance of achieving an ongoing pregnancy is not diminished by transferring a single embryo in the stimulated cycle.
What is monozygotic and dizygotic twins?
To form identical or monozygotic twins, one fertilised egg (ovum) splits and develops into two babies with exactly the same genetic information. To form fraternal or dizygotic twins, two eggs (ova) are fertilised by two sperm and produce two genetically unique children.
What is the most common complication of multiple gestation?
The most common complication of multiple pregnancy is preterm birth. More than one half of all twins are born preterm. Triplets and more are almost always born preterm.