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Prematurity, multiple gestation, and abnormal presentation 

Prematurity, multiple gestation, and abnormal presentation
Prematurity, multiple gestation, and abnormal presentation

Oonagh Keag

and E. Sarah Cooper

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date: 04 December 2020

Preterm labour is a common cause of neonatal morbidity and mortality. This chapter describes the definition, aetiology, diagnosis, and management of preterm labour and delivery with a focus on tocolytic therapy, the use of antenatal corticosteroids, and of magnesium sulphate. Anaesthesia for preterm delivery is discussed. The section on multiple pregnancy details the recommended antenatal careplan for dichorionic and monochorionic twin pregnancies, the fetal and maternal risks and potential complications, and the management of labour and delivery of twins, as well as the anaesthetist’s role in managing these high-risk pregnancies. There are a number of abnormal presentations managed by obstetricians, including abnormal cephalic presentations such as occiputo-posterior positions, breech, transverse, and compound presentations. This chapter focuses specifically on breech presentation, comparing the evidence for vaginal breech delivery versus planned caesarean delivery. It also discusses external cephalic version and vaginal breech delivery itself.

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