Are in vitro fertilization pregnancies with early spontaneous reduction high risk?

Maternal and perinatal outcomes of dichorionic diamniotic twin pregnancies diagnosed with vanishing twin syndrome: a retrospective analysis from a single clinical center

“…Moreover, another study that examined only IVF pregnancies compared the outcomes of singletons, twins, and VTS and found that indeed VTS was associated with poorer outcome when compared with singletons, although a better outcome was noted when compared with twins [20]. Our study showed that even if the preterm birth and low birth weight were more common in the normal twins, VLBW and There are very limited studies conducted on the potential maternal and perinatal outcomes of VTS.…”

Does a Vanishing Twin Affect Perinatal Outcome?

“…Almog et al [1] reviewed VT and twin deliveries after IVF/ICSI and described that the outcomes were similar in terms of the rate of low birth weight <1500 g, preterm delivery, and extremely preterm delivery. Alternatively, Chasen et al [5] showed that the median gestational age at delivery and birth weight were significantly lower, and the rate of preterm delivery was significantly higher in twin than in VT deliveries, concluding that the outcome in VT was better than that in twin deliveries in their study that compared 55 VT with 86 twin births after IVF/ICSI. In our study, when compared with twin deliveries, outcomes in the VT group were significantly better in almost all parameters, including the gestational age at delivery and birth weight.…”

“…The frequency of diagnosis of VT has increased as twin pregnancies have risen in number following the use of ART and as the diagnostic tool, namely the transvaginal ultrasound, has been improved. The prevalence of VT has been reported at 4%-30% after ART, and the impact on obstetric and neonatal outcome has been discussed [1][2][3][4][5][6][7]. Almog et al [1] compared 57 VT deliveries with 171 matched singleton deliveries after ART and observed lower birth weight, an increased rate of low birth weight <2500 g and an increased rate of delivery at <28 weeks of gestation in the VT group.…”

“…The prevalence of this syndrome is reported in 4%-30% of all singleton deliveries after the use of assisted reproductive technologies (ART) [1][2][3][4][5][6][7]. The impact of VT on obstetric outcome till date has been unknown.…”

“…The impact of VT on obstetric outcome till date has been unknown. Some studies state that VT is associated with lower birth weight and a high-rate of preterm deliveries [1][2][3][4][5] and that significant similarity are present between the obstetric outcome of VT and twin pregnancies. However, other studies have shown that there is no difference between the obstetric outcome of VT and singletons [6,7].…”