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Other fetal conditions 

Other fetal conditions
Chapter:
Other fetal conditions
Author(s):

Harini Narayan

DOI:
10.1093/med/9780199673643.003.0028
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date: 29 July 2021

This chapter addresses six wide-ranging conditions including non-immune fetal hydrops, irregular fetal heat rhythm, fetal and neonatal alloimmune thrombocytopenia, reduced fetal movements, prolonged pregnancy, and abnormal biochemistry markers in otherwise low-risk trisomy serum screening tests. Fact files discuss aetiology, epidemiology, investigations, and management options including appropriate referral to tertiary centres. Care pathways incorporate management options, systematic evaluation, investigations and prognosis for each condition. Sustained fetal ectopic heartbeats can lead to heart failure and hydrops fetalis. Fetal tachyarrhythmias/bradyarrhythmias are described. Significant fetal/neonatal mortality and morbidity associated with neonatal alloimmune thrombocytopenia (NAITP) are highlighted. First- and second-trimester markers for possible complications and the need to balance surveillance against creating parental anxiety are summarized. The relationship between maternal perception of decreased fetal movements and adverse outcome is discussed. Increased perinatal mortality observed with prolonged pregnancies and evidence to support interventions after 41 weeks versus expectant management are explored. Patient information is provided.

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