What question did this study set out to answer?

The aim is to compare obstetrical and neonatal outcomes in monocorionic versus dichorionic twin pregnancies from ART.

Obstetrical and Neonatal Outcomes in Twin Pregnancies Based on Chorionicity: A Systematic Review of ART-Conceived Monochorionic vs. Dichorionic Twins

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The aim is to compare obstetrical and neonatal outcomes in monocorionic versus dichorionic twin pregnancies from ART.
Systematic review conducted following PRISMA guidelines, registered in PROSPERO (CRD42024600292).
Searches of PubMed, Scopus, and Web of Science for studies comparing outcomes in MC and DC twin pregnancies.
Qualitative synthesis of eligible studies, totaling 35 studies with 15,648 ART-conceived twin pregnancies.
MC pregnancies had an earlier gestational age at delivery and increased prematurity (exact rates not specified).
MC twins had lower birth weight and higher perinatal mortality compared to DC twins (exact rates not specified).
Maternal complications varied widely without a consistent association with chorionicity.

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Systematic review compares twin pregnancies highlighting the impact of chorionicity on perinatal outcomes.

Karimzadeh et al. (2026) studied this question.

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