Open AccessMonozygotic dichorionic-diamniotic twin pregnancy after single embryo transfer at blastocyst stage: a case report
Author(s) -
Samia Insaurriaga Jundi,
Newton Narciso Pereira,
Thaís M Merighi,
Juliana Andrade Santos,
I.M. Yadid,
M. Coslovsky,
T. Criscuolo,
Ivan Andrade de Araújo Penna
Publication year - 2020
Publication title -
jbra
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.596
H-Index - 14
eISSN - 1518-0557
pISSN - 1517-5693
DOI - 10.5935/1518-0557.20200052
Subject(s) - single embryo transfer , blastocyst , embryo transfer , in vitro fertilisation , gynecology , assisted reproductive technology , obstetrics , blastocyst transfer , twin pregnancy , gestation , embryo , pregnancy , andrology , medicine , biology , embryogenesis , infertility , genetics
Single embryo transfer is highly encouraged on in vitro fertilization due to its lower rates of multiple pregnancy. Nevertheless, the likelihood of multiple pregnancy is higher when using assisted reproductive technology, probably because of embryo handling. Timing is crucial in the post-fertilization division of a single embryo to establish the amniocity and chorionicity of the gestation. In the case reported a 38 year-old woman, nulligravid, had a single blastocyst implanted, which resulted in monozygotic dichorionic-diamniotic twins. Despite being rare, there are reports of similar cases questioning the current knowledge on time of embryo division and the impact of assisted reproduction.