Twin and Higher-order Pregnancies

<p>Section I Biology: Zygocity and chorionicity OR Biology and genetics of dizygotic and monozygotic twinning.- The vanishing twin.- Genomic studies of complex traits: the value of twins.- Placentation in multiple pregnancy.- ‘Omic’ twin studies.- Section I Epidemiology: Epidemiology of twins and multiple pregnancy.- Assisted conception and multiple pregnancy.- Emerging methods in twin research.- Section III Antenatal Care in twins and multiple pregnancy: Dating of the pregnancy (determining the gestational age).- Determining chorionicity and amnionicity.- Twin labelling, timing, frequency and content of ultrasound assessment.- Prenatal screening for and diagnosis of aneuploidy.- Screening for structural abnormalities.- Assessment of fetal growth in twins and multiple pregnancy.- Section IV Prenatal complications in multiple pregnancy: Twin pregnancies discordant for fetal anomaly.- Fetal reduction/selective termination in uncomplicated twins and multiple pregnancy.- Preterm birth in twins and multiple pregnancy.- Fetal growth restriction.- Stillbirth and single inutero death .- Section V Complications unique to monochorionic twin pregnancies: Twin to twin transfusion syndrome.- Twin anaemia polycythaemia sequence.- Twin reversed arterial perfusion sequence.- Monochorionic monoamniotic twin pregnancy.- Diagnosis and management of conjoined twins.- Section VI Peripartum care: Timing of birth in uncomplicated twin pregnancy.- Mode of delivery in twin pregnancy and delivery of the second twin.- Analgesia and anaesthetic consideration.- Postpartum hemorrhage and maternal morbidity in multiple pregnancy.- Section VII Postnatal care: Breast feeding twins and multiples.- Postpartum depression and psychiatric considerations.- Postnatal neonatal assessment in multiple pregnancy.- Support after single loss in twin and multiple pregnancy.- Section VIII Childhood development: Cerebral palsy and neurodevelopmental delay inmultiple pregnancy.- Long term follow-up: indications and methodology.- Neuroimaging & the brain; the role of twin studies.- Section IX Research, registries and Parent views: Research studies in twins and multiple pregnancy (Global Twins and Multiples Priority Setting Partnership).- Twin and multiple pregnancy registries.- Twin and multiple pregnancy: patient voice.</p>