Monozygotic triplet pregnancy following egg donation and transfer of single frozen-thawed embryo

Monozygotic Triplets and Dizygotic Twins following Transfer of Three Poor-Quality Cleavage Stage Embryos

“…Another factor that has been linked to monozygotic twinning is transfer of frozen embryos [8, 9]. A recent meta-analysis study showed a monozygotic twinning rate of 3% following frozen embryo transfer but the small number of cases precluded the authors from reaching statistical significance [1].…”

“…Previously, several cases of monozygotic triplets following IVF have been reported in which ICSI [5, 7, 10], assisted hatching [5, 7], blastocyst transfer [6, 9], or frozen embryo transfer [8, 9] were the risk factors for the monozygotic triplet occurrence. It is noteworthy that in contrast to these case reports, in our case monozygotic splitting into triplets occurred without any of the known risk factors previously discussed.…”

Monozygotic multiple gestation after intracytoplasmic sperm injection and preimplantation genetic diagnosis

“…To detect an unbalanced translocation T(7;15), the study used three probes: green: telomere 7q; red: telomere 15q; aqua: centromere 15, showing two normal FISH signals in blastomeres A and B and uncertain signal in blastomere C. environmental factors and more of genetic factors (23). Monzygotic twinning in ART has recently been reported in own as well as donated oocytes (18,19,24), which does not support possible relation to egg/ZP quality.…”

Dichorionic quadramniotic quadruple gestation with monochorionic triamniotic triplets after two embryos transfer and selective reduction to twin pregnancy: case report

“…Several cases of monozygotic triplets derived from ART procedures have also been reported (9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19). In the present study, we present a unique case that had a dichorionic quadramniotic quadruple gestation with a monochorionic triamniotic triplet gestation after intracytoplasmic sperm injection (ICSI) treatment and transfer of two embryos, and underwent selective reduction of two of monochorionic triamniotic triplets.…”