title: A case of monochorionic-diamniotic twin pregnancy with polyhydramnios-polyhydramnios sequence.
abstract: We present a case of monochorionic-diamniotic (MD) twin pregnancy with polyhydramnios-polyhydramnios sequence. A 20-year-old woman, gravida 1, para 0, was referred to our hospital at 31 weeks and 6 days' gestation for consultation about a high-risk pregnancy due to the presence of discordant fetal growth pattern (26% of fetal growth discordance) with polyhydramnios in MD twin pregnancy. Ultrasound examination at admission showed a maximal vertical pocket (MVP) of 11.4 cm in twin A and an MVP of 4.7 cm in twin B. At 33 weeks' gestation, the MVPs had increased to 22.2 cm and 10.2 cm, respectively. At 33 weeks and 2 days' gestation, Cesarean section was performed because of uncontrolled uterine contractions associated with polyhydramnios. Twin A was a female weighing 2,280 g, and twin B was a female weighing 1,782 g (22% growth discordance). The estimated amniotic fluid volumes of twins A and B were 5,000 and 1,000 mL, respectively.
authors.affiliation: Department of Obstetrics and Gynecology, Japanese Red Cross Katsushika Maternity Hospital, Tokyo, Japan.
authors.forename: Yusuke
authors.initials: Y
authors.lastname: Inde
authors.forename: Hidehiko
authors.initials: H
authors.lastname: Miyake
authors.forename: Akane
authors.initials: A
authors.lastname: Takaya
authors.forename: Shuichi
authors.initials: S
authors.lastname: Ono
authors.forename: Miwa
authors.initials: M
authors.lastname: Igarashi
authors.forename: Shunji
authors.initials: S
authors.lastname: Suzuki
mesh_terms: D002585:Cesarean Section; D005260:Female; D005330:Fetofetal Transfusion / Q000000981:diagnostic imaging / Q000209:etiology*; D006801:Humans; D006831:Polyhydramnios / Q000000981:diagnostic imaging / Q000209:etiology*; D011247:Pregnancy; D018566:Pregnancy, High-Risk; D011272:Pregnancy, Multiple; D011296:Prenatal Diagnosis; D014427:Twins; D016216:Ultrasonography, Prenatal; D055815:Young Adult