A systematic review of phenylephrine vs. noradrenaline for the management of hypotension associated with neuraxial anaesthesia in women undergoing caesarean section. (3rd February 2020)
- Record Type:
- Journal Article
- Title:
- A systematic review of phenylephrine vs. noradrenaline for the management of hypotension associated with neuraxial anaesthesia in women undergoing caesarean section. (3rd February 2020)
- Main Title:
- A systematic review of phenylephrine vs. noradrenaline for the management of hypotension associated with neuraxial anaesthesia in women undergoing caesarean section
- Authors:
- Heesen, M.
Hilber, N.
Rijs, K.
Rossaint, R.
Girard, T.
Mercier, F.J.
Klimek, M. - Abstract:
- Summary: Phenylephrine is recommended for the management of hypotension after spinal anaesthesia in women undergoing caesarean section. Noradrenaline, an adrenergic agonist with weak β‐adrenergic activity, has been reported to have a more favourable haemodynamic profile than phenylephrine. However, there are concerns that noradrenaline may be associated with a higher risk of fetal acidosis, defined as an umbilical artery pH < 7.20. We performed a systematic review of trials comparing noradrenaline with phenylephrine, concentrating on primary outcomes of fetal acidosis and maternal hypotension. We identified 13 randomised controlled trials including 2002 patients. Heterogeneity among the studies was high, and there were too few data to calculate a pooled effect estimate. Fetal acidosis was assessed in four studies that had a low risk of bias and a low risk of confounding, that is, studies which used a prophylactic vasopressor and where women received the allocated vasopressor only. There were no significant differences between these studies. No significant differences were observed for hypotension. Two trials found a significantly lower incidence of bradycardia when using noradrenaline. Cardiac output was significantly higher after noradrenaline in two of three studies. For other secondary outcomes including nausea, vomiting and Apgar scores at 1 and 5 min, no studies found significant differences. The evidence so far is too limited to support an advantage of noradrenalineSummary: Phenylephrine is recommended for the management of hypotension after spinal anaesthesia in women undergoing caesarean section. Noradrenaline, an adrenergic agonist with weak β‐adrenergic activity, has been reported to have a more favourable haemodynamic profile than phenylephrine. However, there are concerns that noradrenaline may be associated with a higher risk of fetal acidosis, defined as an umbilical artery pH < 7.20. We performed a systematic review of trials comparing noradrenaline with phenylephrine, concentrating on primary outcomes of fetal acidosis and maternal hypotension. We identified 13 randomised controlled trials including 2002 patients. Heterogeneity among the studies was high, and there were too few data to calculate a pooled effect estimate. Fetal acidosis was assessed in four studies that had a low risk of bias and a low risk of confounding, that is, studies which used a prophylactic vasopressor and where women received the allocated vasopressor only. There were no significant differences between these studies. No significant differences were observed for hypotension. Two trials found a significantly lower incidence of bradycardia when using noradrenaline. Cardiac output was significantly higher after noradrenaline in two of three studies. For other secondary outcomes including nausea, vomiting and Apgar scores at 1 and 5 min, no studies found significant differences. The evidence so far is too limited to support an advantage of noradrenaline over phenylephrine. Concerns of a deleterious effect of noradrenaline on fetal blood gas status cannot currently be assuaged by the available data from randomised controlled studies. 요약: Phenylephrine은 제왕절개를 받는 여성에서 척추 마취 후 저혈압 관리를 위해 권장된다. 약한 베타 아드레날린 활성을 가진 아드레날린 작용제인 noradrenaline은 phenylephrine 보다 더 유리한 혈역학적 프로파일을 가지는 것으로 보고되었 다. 그러나 noradrenaline이 더 높은 태아산증(제대 동맥 pH ‹ 7.20로 정의)의 위험과 연관성을 가진다는 우려가 있다. 태아산증과 산모의 저혈압의 일차 평가지표들을 중심으로 noradrenaline을 phenylephrine과 비교한 임상시험들의 체 계적 문헌고찰을 수행하였다. 2002명의 환자를 포함한 13건의 무작위 배정 대조군 임상시험을 확인하였다. 임상시험 간 이 질성(heterogeneity)은 높았으며, 통합된 효과 추정치(pooled effect estimate)를 계산하기에는 데이터가 너무 적었다. 낮은 비뚤림 위험(risk of bias)과 교란 위험(risk of confounding) 을 가진 4건의 임상시험에서 태아산증이 평가되었는데, 이 임상시험들에서는 승압제(vasopressor)를 예방적으로 사용하 였으며 시험 대상자들에게 할당된 승압제만을 투여하였다. 이 들 임상시험 간 유의한 차이는 없었다. 저혈압에 대한 유의한 차이는 관찰되지 않았다. 2건의 임상시험이 noradrenaline을 사용하였을 때 서맥 발생률이 유의하게 더 낮았다고 밝혔다. 심박출량은 3건의 임상시험 중 2건에서 noradrenaline 투여 후 유의하게 더 높았다. 구역, 구토, 1분 및 5분 아프가(Apgar) 점수를 포함한 다른 이차 평가지표들에서 유의한 차이가 관찰 된 임상시험은 없었다. 지금까지는 phenylephrine보다 nor‐ adrenaline이 더 낫다는 주장을 지지하는 근거가 매우 제한적 이다. 현재 무작위 배정 대조군 임상시험에서 이용 가능한 데 이터로는 태아의 혈액 가스 상태에 있어 noradrenaline의 유 해효과에 대한 우려를 해소할 수 없다. … (more)
- Is Part Of:
- Anaesthesia. Volume 75:Number 6(2020)
- Journal:
- Anaesthesia
- Issue:
- Volume 75:Number 6(2020)
- Issue Display:
- Volume 75, Issue 6 (2020)
- Year:
- 2020
- Volume:
- 75
- Issue:
- 6
- Issue Sort Value:
- 2020-0075-0006-0000
- Page Start:
- 800
- Page End:
- 808
- Publication Date:
- 2020-02-03
- Subjects:
- anaesthesia, spinal -- caesarean section -- noradrenaline -- phenylephrine -- systematic review
Anesthesia -- Periodicals
617.96 - Journal URLs:
- http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1365-2044 ↗
http://onlinelibrary.wiley.com/ ↗
http://www.aagbi.org/publications ↗ - DOI:
- 10.1111/anae.14976 ↗
- Languages:
- English
- ISSNs:
- 0003-2409
- Deposit Type:
- Legaldeposit
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- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - 0859.900000
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