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Outcomes following acute tocolysis prior to emergency caesarean section.

Authors
  • Buckley, Victoria A1
  • Wu, Joyce1
  • De Vries, Bradley1, 2
  • 1 Obstetrics and Gynaecology, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia. , (Australia)
  • 2 School of Public Health, University of Sydney, Sydney, New South Wales, Australia. , (Australia)
Type
Published Article
Journal
The Australian & New Zealand journal of obstetrics & gynaecology
Publication Date
May 06, 2020
Identifiers
DOI: 10.1111/ajo.13170
PMID: 32378185
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

To determine if a policy recommending administration of terbutaline prior to emergency caesarean section improved arterial umbilical cord pH. This was a prospective audit between February 2018 and June 2019 among women who underwent a category one or two caesarean section. Neonatal cord gas results and perinatal outcomes were compared before and after the introduction of a policy recommending subcutaneous terbutaline prior to emergency caesarean section. Among 423 women in the pre-policy change cohort and 253 post-policy change, there was no difference in arterial cord pH (median pH = 7.24 before the policy and median pH = 7.24 after the policy was introduced, P = 0.88). There was no statistically significant difference in any perinatal outcome, apart from the median arterial cord lactate which was higher in the post-treatment group (4.2 mmol/L vs 3.9 mmol/L, P = 0.006). Maternal heart rate was higher (median 110 vs 95, P < 0.0001) in the post-treatment group. Breastfeeding was more common in the post-treatment group (99% vs 95%, P = 0.005). There was no difference in estimated blood loss or rate of post-partum haemorrhage. A post hoc analysis according to treatment received, limited to caesarean section when the indication was suspected fetal compromise, demonstrated that among women who received terbutaline the rate of low pH (<7.1) was 3.8% (5/130) when terbutaline was given, compared with 6.6% (18/272) when terbutaline was not given (χ2 1 = 1.3, P = 0.26). Changing our labour ward policy to recommending terbutaline prior to all category one and category two caesarean sections did not change arterial cord pH. © 2020 The Royal Australian and New Zealand College of Obstetricians and Gynaecologists.

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