title: Monochorionic monoamniotic twins--the most precarious of twin pregnancies.
abstract: Monochorionic monoamniotic twins have a high perinatal mortality rate. Death usually occurs before 24 weeks' gestation, mainly because of cord entanglement, prematurity, congenital anomalies or twin-to-twin transfusion. These possibilities should be taken into account when twin pregnancies are detected at the ultrasound screening between 17 and 20 weeks' pregnancy. We report here a case where monochorionic monoamniotic twins were born at 34 weeks, with massive cord entanglement and we describe the antenatal care at our clinic.
authors.affiliation: Department of Obstetrics and Gynecology, Akershus Central Hospital, Nordbyhagen, Norway.
authors.forename: A
authors.initials: A
authors.lastname: Dørum
authors.forename: B I
authors.initials: BI
authors.lastname: Nesheim
mesh_terms: D000328:Adult; D000650:Amnion / Q000473:pathology*; D002823:Chorion / Q000473:pathology*; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D011247:Pregnancy; D011272:Pregnancy, Multiple; D014430:Twins, Monozygotic; D014470:Umbilical Cord / Q000473:pathology