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Int J Obstet Anesth. 2008 Jan;17(1):3-8. Epub 2007 Nov 5.

Prescribing intramuscular opioids for labour analgesia in consultant-led maternity units: a survey of UK practice.

Author information

1
Department of Anaesthesia, Royal United Hospital Bath, UK. Jenny.Tuckey@ruh-bath.swest.nhs.uk

Abstract

BACKGROUND:

Intramuscular opioids are widely used for analgesia in labour. We conducted a postal survey to establish current prescribing and monitoring guidelines for intramuscular opioids in consultant-led obstetric units in the UK.

METHODS:

A postal questionnaire was sent between December 2005 and January 2006 to the lead obstetric anaesthetist of all 234 consultant-led obstetric units in the UK. We enquired about dose regimens of intramuscular opioids in labour and monitoring of mother, fetus and neonate.

RESULTS:

The response rate was 71%; 84.4% of responding units used pethidine and 34.1% diamorphine. Meptazinol and morphine were available in 13.8% and 13.2% of units respectively. Some units used more than one opioid. The choice of opioid was dictated mainly by tradition (65.3%) and familiarity (40.7%). Prophylactic antiemetics were co-administered in 73.7% of units, the most commonly used being prochlorperazine (30.5%). Vital signs were monitored in 91.6% of units: in total 10.2% measured haemoglobin oxygen saturations and 4.8% respiratory rate. Pain scores were recorded in 13.7% of units.

CONCLUSIONS:

When compared with previous studies the use of intramuscular diamorphine is increasing in UK consultant-led obstetric units, although pethidine remains the widely used opioid. At present this change cannot be justified by a suitably powered, randomised study comparing intramuscular pethidine with diamorphine.

PMID:
17981457
DOI:
10.1016/j.ijoa.2007.05.014
[Indexed for MEDLINE]
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