monoamniotic twins

Monochorionic monoamniotic twins are at greatest risk with 60% mortality.

Crowe noted about 20 percent of monoamniotic twins die from such complications.

Monoamniotic twins occur when the split takes place after the ninth day after fertilization.

Monoamniotic twins are identical twins that share the same amniotic sac within their mother's uterus.

Monoamniotic twins are always monozygotic (identical twins).

Monoamniotic twins

Other obscure possibilities include multiples sets where monoamniotic twins are part of a larger gestation such as triplets, quadruplets, or more.

Regular and aggressive fetal monitoring is recommended for cases of monoamniotic twins to look for cord entanglement beginning after viability.

Monoamniotic twins develop when an embryo does not split until after formation of the amniotic sac, at about 9-13 days after fertilization.

Sulindac has been used experimentally in some monoamniotic twins, lowering the amount of amniotic fluid and thereby inhibiting fetal movement.

In the case of monoamniotic twins the risk of complications is substantially higher because of additional potential umbilical cord entanglement and compression.

Rather, TTTS diagnosis in monoamniotic twins relies on comparing the physical development of the twins.

First-trimester cord entanglement in monoamniotic twins is the cause of death in about half of these twin pregnancies with fetal demise.

Sometimes, however, in the case of monoamniotic twins (Monochorionic-Monoamniotic "MoMo"), they also share the same amniotic sac.

All monoamniotic twins are delivered prematurely by cesarean section, since the risk of cord entanglement and/or cord compression becomes too great in the third trimester.

Monoamniotic twins are rare, with an occurrence of 1 in 35,000 to 1 in 60,000 pregnancies, corresponding to about 1% of twin pregnancies.

It is more likely to occur in women with large pelvises, young primigravidae (young women in their first pregnancy), and pregnancies with monoamniotic twins.

Monoamniotic twins - These twins share the same placenta and the same amniotic sac and therefore can interfere with each other's umbilical cords.

Monoamniotic twins are always identical, always monochorionic and are usually termed Monoamniotic-Monochorionic ("MoMo") twins.

TTTS is much more difficult to diagnose in monoamniotic twins than diamniotic ones, since the standard method otherwise is to compare the fluid in the sacs.

Pregnancy-Info - > Monoamniotic Twins Retrieved on July 9, 2009 Monochorionic twins, on the other hand, may be dizygotic.

“Having a set of monoamniotic twins can be dangerous and unpredictable,” said Dr. Susan Crowe, who led the delivery team at Lucile Packard Children’s Hospital.

The survival rate for monoamniotic twins has been shown to be as high as 81% to 95% in 2009 with aggressive fetal monitoring, although previously reported as being between 50% to 60%.

Monoamniotic twins share a hormonal environment, but can suffer from the 'twin to twin transfusion syndrome' in which one twin is "relatively stuffed with blood and the other exsanguinated".

The births of Kate and Annie Carlson on November 7 in Stanford, Calif., was a rare event because the girls are monoamniotic twins, KTVU reported.