The Australian & New Zealand journal of obstetrics & gynaecology · 2020
Outcomes following acute tocolysis prior to emergency caesarean section.
СтатьяНазвание и аннотация: Перевод в очереди
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Buckley Victoria A, Wu Joyce, De Vries Bradley
Аннотация
AIM: To determine if a policy recommending administration of terbutaline prior to emergency caesarean section improved arterial umbilical cord pH.
MATERIALS AND METHODS: 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.
RESULTS: 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 (χ21 = 1.3, P = 0.26).
CONCLUSION: Changing our labour ward policy to recommending terbutaline prior to all category one and category two caesarean sections did not change arterial cord pH.
MATERIALS AND METHODS: 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.
RESULTS: 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 (χ21 = 1.3, P = 0.26).
CONCLUSION: Changing our labour ward policy to recommending terbutaline prior to all category one and category two caesarean sections did not change arterial cord pH.