Conception
of a twin gestation is a possible outcome of almost every treatment involving assisted reproductive technology, including IVF.
Not exact matches
Instead
of excluding the high risk births from both groups, they include the homebirth outcomes
of premature births at 34 - 37 weeks
gestation (13 - 17) breech and
twins (13,14) lethal anomalies incompatible with life (13,14) unattended homebirths (15,16) unplanned homebirths (15,16) or women who became risked out
of homebirth by becoming high risk at the end
of pregnancy, had hospital births, but are included in the homebirth group.
Although some critics say that before twelve weeks
gestation there is still a high risk
of vanishing
twin syndrome (VTS), where one baby stops growing and is either absorbed back into the mother's body or is stillborn when the other
twin is born.
According to the American Pregnancy Association,
twins have a 60 % chance
of being born before 37 weeks
gestation.
While we are constantly attempting to refine and improve IVF technology to reduce the risk
of multiple
gestation, we recognize that there will likely always be some chance
of conceiving a
twin pregnancy through IVF — and our patients should realize this as well.
It's a compilation
of many pregnant mamas birthing
twins and triplets vaginally at all different stages
of gestation.
More than half
of all
twins and nearly all higher - order multiples are born before 37 weeks
gestation.
Attempting a home birth also is not advised for women who are post-term (greater than 42 weeks
gestation), carrying
twins, or have a breech presentation because all carry a greater risk
of perinatal death.
The rate
of cesarean deliveries among women with
twin gestations increased from 53 % in 1995 to 75 % in 2008 (105).
External cephalic version for breech presentation and a trial
of labor for women with
twin gestations when the first
twin is in cephalic presentation also can contribute to the safe lowering
of the primary cesarean delivery rate.
External cephalic version for breech presentation and a trial
of labor for women with
twin gestations when the first
twin is in cephalic presentation are other
of several examples
of interventions that can contribute to the safe lowering
of the primary cesarean delivery rate.
In - hospital Attended by MD / DO / CNM
Gestation 37 weeks and up (it's hard to make this correspond, as MANAStats didn't give gestation lengths, but only 2.5 % of their mothers «showed clinical signs» of preterm birth) Singleton and twins (MANAStats didn't include any higher order multiples) Vaginal and c / s Death from < 1 hour to 28 day
Gestation 37 weeks and up (it's hard to make this correspond, as MANAStats didn't give
gestation lengths, but only 2.5 % of their mothers «showed clinical signs» of preterm birth) Singleton and twins (MANAStats didn't include any higher order multiples) Vaginal and c / s Death from < 1 hour to 28 day
gestation lengths, but only 2.5 %
of their mothers «showed clinical signs»
of preterm birth) Singleton and
twins (MANAStats didn't include any higher order multiples) Vaginal and c / s Death from < 1 hour to 28 days
of life
In - hospital (no unknown) Attended by MD / DO / CNM (no other midwife or unknown)
Gestation 37 weeks and up Singleton and
Twins 2005 - 2009 (since MANAStats includes November 05 - Dec 09) Death from < 1 hour to 28 days
of life
Moreover, two analyses
of large populations found that women with
twin gestations had a similar likelihood
of achieving VBAC as women with singleton
gestations.
These studies also found that women with
twin gestations did not incur any greater risk
of uterine rupture or maternal or perinatal morbidity than those with a singleton
gestation (96, 97).
Few studies regarding
twins have been completed, but in two small studies with only 45 women, the rates
of successful VBAC and uterine rupture did not differ significantly between study subjects and women with singleton
gestations also attempting VBAC (ACOG, 2004).
Our next daughter, Olivia, born in a traumatic birth at 29 weeks
of gestation, endured many losses including the loss
of her
twin sister at their birth, the loss
of her birth mother, the loss
of gestational time (early eviction on a 9 month lease!)
Cobedding
of twins and other infants of multiple gestation is a frequent practice, both in the hospital setting and at home.174 However, the benefits of cobedding twins and higher - order multiples have not been established.175, — , 177 Twins and higher - order multiples are often born prematurely and with low birth weight, so they are at increased risk of SIDS.101, 102 Furthermore, there is increased potential for overheating and rebreathing while cobedding, and size discordance might increase the risk of accidental suffocation.176 Most cobedded twins are placed on their sides rather than supine.174 Finally, cobedding of twins and higher - order multiples in the hospital setting might encourage parents to continue this practice at home.176 Because the evidence for the benefits of cobedding twins and higher - order multiples is not compelling and because of the increased risk of SIDS and suffocation, the AAP believes that it is prudent to provide separate sleep areas for these infants to decrease the risk of SIDS and accidental suffoca
twins and other infants
of multiple
gestation is a frequent practice, both in the hospital setting and at home.174 However, the benefits
of cobedding
twins and higher - order multiples have not been established.175, — , 177 Twins and higher - order multiples are often born prematurely and with low birth weight, so they are at increased risk of SIDS.101, 102 Furthermore, there is increased potential for overheating and rebreathing while cobedding, and size discordance might increase the risk of accidental suffocation.176 Most cobedded twins are placed on their sides rather than supine.174 Finally, cobedding of twins and higher - order multiples in the hospital setting might encourage parents to continue this practice at home.176 Because the evidence for the benefits of cobedding twins and higher - order multiples is not compelling and because of the increased risk of SIDS and suffocation, the AAP believes that it is prudent to provide separate sleep areas for these infants to decrease the risk of SIDS and accidental suffoca
twins and higher - order multiples have not been established.175, — , 177
Twins and higher - order multiples are often born prematurely and with low birth weight, so they are at increased risk of SIDS.101, 102 Furthermore, there is increased potential for overheating and rebreathing while cobedding, and size discordance might increase the risk of accidental suffocation.176 Most cobedded twins are placed on their sides rather than supine.174 Finally, cobedding of twins and higher - order multiples in the hospital setting might encourage parents to continue this practice at home.176 Because the evidence for the benefits of cobedding twins and higher - order multiples is not compelling and because of the increased risk of SIDS and suffocation, the AAP believes that it is prudent to provide separate sleep areas for these infants to decrease the risk of SIDS and accidental suffoca
Twins and higher - order multiples are often born prematurely and with low birth weight, so they are at increased risk
of SIDS.101, 102 Furthermore, there is increased potential for overheating and rebreathing while cobedding, and size discordance might increase the risk
of accidental suffocation.176 Most cobedded
twins are placed on their sides rather than supine.174 Finally, cobedding of twins and higher - order multiples in the hospital setting might encourage parents to continue this practice at home.176 Because the evidence for the benefits of cobedding twins and higher - order multiples is not compelling and because of the increased risk of SIDS and suffocation, the AAP believes that it is prudent to provide separate sleep areas for these infants to decrease the risk of SIDS and accidental suffoca
twins are placed on their sides rather than supine.174 Finally, cobedding
of twins and higher - order multiples in the hospital setting might encourage parents to continue this practice at home.176 Because the evidence for the benefits of cobedding twins and higher - order multiples is not compelling and because of the increased risk of SIDS and suffocation, the AAP believes that it is prudent to provide separate sleep areas for these infants to decrease the risk of SIDS and accidental suffoca
twins and higher - order multiples in the hospital setting might encourage parents to continue this practice at home.176 Because the evidence for the benefits
of cobedding
twins and higher - order multiples is not compelling and because of the increased risk of SIDS and suffocation, the AAP believes that it is prudent to provide separate sleep areas for these infants to decrease the risk of SIDS and accidental suffoca
twins and higher - order multiples is not compelling and because
of the increased risk
of SIDS and suffocation, the AAP believes that it is prudent to provide separate sleep areas for these infants to decrease the risk
of SIDS and accidental suffocation.
During any pregnancy, there can be multiple
gestations (for instance, in the case
of twins, or... Continue Reading →
Premature labor, premature rupture
of membranes, diabetes, and blood pressure disorders are far more likely in
twin gestations than singletons.
The lowest perinatal mortality in
twins occurs in infants born between 37 and 38 wk
of gestation (24, 25), and therefore, this gestational age can be considered as an optimal start for postnatal growth.
In addition to exchange between mother and fetus, there may be exchange
of cells between
twins in utero, and there is also the possibility that cells from an older sibling residing in the mother may find their way back across the placenta to a younger sibling during the latter's
gestation.
«
Twin pregnancies are at substantially higher risk
of early preterm birth than singleton pregnancies and this risk is inversely related to sonographically measured cervical length at 20 - 24 weeks»
gestation,» explained lead investigator Kypros H Nicolaides, MD, Harris Birthright Research Centre for Fetal Medicine, King's College Hospital, London.
«This is a major international study examining an important clinical question — namely, whether a cervical pessary can reduce the rate
of preterm delivery in
twin gestations,» commented Roberto Romero, MD, DMedSci, Editor - in - Chief for Obstetrics
of the American Journal
of Obstetrics and Gynecology, and Chief
of the Perinatology Research Branch
of NICHD / NIH.
They used state -
of - the - art ultrasound to monitor the movements
of five pairs
of fetal
twins, between 14 and 18 weeks
of gestation.
Twinning occurred in two
of nine SCNT
gestations at d 18.
A mom
of twins might see more severe morning sickness symptoms with
twins, and earlier in the
gestation period.
This success saw them enjoy a production run
of 12 years, almost unheard
of in the modern motoring world, however the
gestation period
of these
twins was longer than their production run and, bizarrely, that story begins with an Audi.