• J H Tomlinson and D N Lucas.
• Department of Anaesthesia, Northwick Park Hospital, Watford Road, Harrow, Middlesex HA1 3UJ, UK. Electronic address: jhgrey@doctors.org.uk.
• Best Pract Res Clin Anaesthesiol. 2017 Mar 1; 31 (1): 49-56.

AbstractEmergency caesarean section is required when delivery can reduce the risk to the life of the mother or foetus. When a caesarean section is indicated for foetal compromise, a decision-to-delivery interval of 30 min (or less) has been suggested as the ideal time frame within which an obstetric team should achieve delivery. In theory, a short decision-to-delivery interval may minimise intra-uterine hypoxia and improve neonatal outcome. Current medical evidence does not support this time frame. There are certain indications for caesarean section that necessitate a much shorter decision-to-delivery interval, but evidence suggests that the majority of neonates may be safely delivered within a longer interval of time. Current tools available for the diagnosis of foetal distress are imperfect, and the concept of foetal distress is poorly defined. Future research should focus on finding accurate means of diagnosing foetal distress in labouring women and establishing universally agreed evidence-based decision-to-delivery targets without compromising maternal or foetal safety.Copyright © 2017. Published by Elsevier Ltd.

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