title: Incidence of intrauterine complications in monoamniotic twin gestation.
abstract: We compared the incidence of intrauterine complications, such as twin-twin transfusion syndrome, between monochorionic-monoamniotic (MM) and monochorionic-diamniotic (MD) twin gestations. We retrospectively evaluated a series of 11 MM and 211 MD twin gestations managed after 22 weeks' gestation at our hospitals. One MM twin gestation was diagnosed with twin-twin transfusion syndrome based on clinical presentation of polyhydramnios and hydrops. The incidence of twin-twin transfusion syndrome in MM twin gestations (9.1%) was not measurable different from that in the MD twin gestations (7.6%, p=0.09). There were no measurable differences in the incidence of other complications, such as growth discordance >25% or intrauterine fetal demise between the two groups. MM twin gestations should be kept under close management while carefully monitoring for any circulatory imbalance between the twins.
authors.affiliation: Department of Obstetrics and Gynecology, Nippon Medical School, Tokyo, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Suzuki
authors.forename: K
authors.initials: K
authors.lastname: Kaneko
authors.forename: S
authors.initials: S
authors.lastname: Shin
authors.forename: T
authors.initials: T
authors.lastname: Araki
mesh_terms: D000328:Adult; D000650:Amnion; D002823:Chorion; D004200:Diseases in Twins; D005260:Female; D005313:Fetal Death; D005330:Fetofetal Transfusion / Q000453:epidemiology; D005865:Gestational Age; D006801:Humans; D011247:Pregnancy; D011272:Pregnancy, Multiple; D012189:Retrospective Studies