Short Communication
Implementation of a clinical practice guideline for antenatal magnesium
sulphate for neuroprotection in Australia and New Zealand
Emily BAIN, Tanya BUBNER, Pat ASHWOOD, Caroline A. CROWTHER and
Philippa MIDDLETON, for The WISH Project Team
Australian Research Centre for Health of Women and Babies, Discipline of Obstetrics and Gynaecology, Robinson Institute,
The University of Adelaide, Adelaide, South Australia, Australia
Health professionals at 25 Australian and New Zealand tertiary maternity hospitals were surveyed about local
implementation of a clinical practice guideline for antenatal magnesium sulphate for fetal neuroprotection. Seventy-six
percent of respondents reported that their hospital is currently following a guideline; 36% confirmed that their hospital is
auditing uptake. Estimates of uptake ranged from 53 to 90%. Ongoing education and support are needed to ensure that
the guidelines are optimally implemented, and uptake and important health outcomes are monitored.
Key words: antenatal care, clinical practice, guidelines, magnesium sulphate, preterm, survey.
Introduction
Babies born very preterm are at high risk of dying in their
first weeks of life, and survivors are at risk of neurosensory
disabilities, including cerebral palsy, blindness, deafness
and cognitive dysfunction.
1,2
In Australia, over 600
children are diagnosed with cerebral palsy annually;
approximately, 40% of cases are related to preterm birth.
3
In the 1990s, observational studies suggested an association
between antenatal exposure to magnesium sulphate and
reductions in intraventricular haemorrhage, cerebral palsy
and neonatal mortality.
4,5
Four randomised controlled trials
subsequently assessed the effects of antenatal magnesium
sulphate for providing preterm fetal neuroprotection. Meta-
analyses of these trials have shown a neuroprotective role for
magnesium sulphate; in the 2009 Cochrane review,
magnesium sulphate was associated with a 15% relative
reduction in the risk of death or cerebral palsy (RR 0.85,
95% CI 0.74–0.98; four trials, 4446 infants) and a 29%
reduction in the risk of cerebral palsy alone (RR 0.71,
95% CI 0.55–0.91; four trials, 4446 infants).
6
In 2010, the National Health and Medical Research
Council (NHMRC) endorsed binational clinical practice
guidelines for magnesium sulphate for women at risk of
early preterm (<30 weeks gestation), imminent birth, for
neuroprotection of the fetus.
7
However, it is recognised
that implementation of the best available evidence is often
challenging.
8
Based on knowledge of interventions likely to increase
the uptake of evidence into practice,
9,10
the
implementation project WISH (Working to Improve
Survival and Health for babies born preterm) was
designed, now funded by the Cerebral Palsy Alliance.
11
This project is ongoing, comprising a package of active
implementation strategies to guide the introduction and
local adaptation of guideline recommendations. ‘Guideline
Action Packs’ containing the NHMRC-endorsed
guidelines,
7
educational materials, health professional and
consumer information were sent to Australian and New
Zealand tertiary maternity hospitals in December 2011
and January 2012.
The purpose of this survey was to assess current local
implementation of a guideline for magnesium sulphate for
fetal neuroprotection at all tertiary maternity hospitals
across Australia and New Zealand and to assess early
views of the Guideline Action Pack materials.
Materials and Methods
During March to June 2012, a web-based survey was
conducted involving all tertiary maternity hospitals in
Australia (N = 19) and New Zealand (N = 6). The
invitation to participate was addressed to an identified
clinical obstetric leader, who could nominate another
health professional to complete the survey. Participation
Correspondence: Miss Emily Bain, Australian Research Centre
for Health of Women and Babies, Discipline of Obstetrics
and Gynaecology, Robinson Institute, The University of
Adelaide, Level 1, Queen Victoria Building, Women's and
Children's Hospital, 72 King William Road, North Adelaide,
SA 5006, Australia. Email: emily.bain@adelaide.edu.au
Received 31 July 2012; accepted 8 September 2012.
86 © 2012 The Authors
ANZJOG © 2012 The Royal Australian and New Zealand College of Obstetricians and Gynaecologists
Australian and New Zealand Journal of Obstetrics and Gynaecology 2013; 53: 86–89 DOI: 10.1111/ajo.12008
Te Australian and
New Zealand Journal
of Obstetrics and
Gynaecology