Use of norepinephrine in preterm neonates with dopamine-resistant shock: a retrospective single-centre cross-sectional study

Background Norepinephrine (NE) is recommended for children and full-term neonates (born at >37 gestational weeks) with septic shock. Meanwhile, data on the effectiveness of NE in preterm neonates are still limited. This study aimed to evaluate the clinical efficacy of NE in preterm neonates w...

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Main Authors: Yifan Sun, Zhiling Li, Pei Lu, Xiaohui Gong, Wenchao Hong
Format: Article
Language:English
Published: BMJ Publishing Group 2023-12-01
Series:BMJ Paediatrics Open
Online Access:https://bmjpaedsopen.bmj.com/content/7/1/e001804.full
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author Yifan Sun
Zhiling Li
Pei Lu
Xiaohui Gong
Wenchao Hong
author_facet Yifan Sun
Zhiling Li
Pei Lu
Xiaohui Gong
Wenchao Hong
author_sort Yifan Sun
collection DOAJ
description Background Norepinephrine (NE) is recommended for children and full-term neonates (born at >37 gestational weeks) with septic shock. Meanwhile, data on the effectiveness of NE in preterm neonates are still limited. This study aimed to evaluate the clinical efficacy of NE in preterm neonates with dopamine-resistant shock compared with that in full-term neonates.Methods This was a single-centre, retrospective (January 2010–December 2020) cohort study of neonates with persistent shock despite adequate fluid resuscitation and dopamine or dobutamine administration at ≥10 μg/kg/min. Medical records of neonates treated with NE were retrospectively reviewed to collect respiratory and haemodynamic parameters and results of arterial blood gas (ABG) tests before and 8 hours after NE infusion. The effectiveness of NE was assessed using changes in clinical parameters and multiple regression models for mortality among subgroups of preterm and full-term neonates.Results Ninety-two neonates (76% preterm) who received NE infusion were included in the study. NE infusion was started after a median of 7 hours (IQR 2–19 hours) after shock onset. Among the preterm neonates, the maximum dose of NE infusion was 0.5 (IQR 0.3–1.0) µg/kg/min with a median duration of 45 (IQR 24.0–84.5) hours. Haemodynamic dysfunction was ameliorated with increased blood pressure, decreased heart rate and improved ABG results. Preterm neonates with septic shock tended to have a reduced response to NE; however, preterm neonates with persistent pulmonary hypertension of the newborn tended to have a better response. Thirty-four (37%) neonates died in our cohort. The timing, dose and duration of NE use were not associated with neonatal mortality.Conclusions Although using NE effectively improves clinical parameters in preterm neonates with dopamine-resistant shock, our study is underpowered to identify the association between NE infusion and mortality in preterm neonates with dopamine-resistant shock.
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spelling doaj.art-9a5b1a523f764e549caa01912b407d532024-01-02T16:50:10ZengBMJ Publishing GroupBMJ Paediatrics Open2399-97722023-12-017110.1136/bmjpo-2022-001804Use of norepinephrine in preterm neonates with dopamine-resistant shock: a retrospective single-centre cross-sectional studyYifan Sun0Zhiling Li1Pei Lu2Xiaohui Gong3Wenchao Hong4Department of Neonatology, Shanghai Children`s Hospital, school of medicine, Shanghai Jiao Tong University, Shanghai, ChinaDepartment of Pharmacy, Shanghai Children`s Hospital, school of medicine, Shanghai Jiao Tong University, Shanghai, ChinaDepartment of Neonatology, Shanghai Children`s Hospital, school of medicine, Shanghai Jiao Tong University, Shanghai, ChinaDepartment of Neonatology, Shanghai Children`s Hospital, school of medicine, Shanghai Jiao Tong University, Shanghai, ChinaDepartment of Neonatology, Shanghai Children`s Hospital, school of medicine, Shanghai Jiao Tong University, Shanghai, ChinaBackground Norepinephrine (NE) is recommended for children and full-term neonates (born at >37 gestational weeks) with septic shock. Meanwhile, data on the effectiveness of NE in preterm neonates are still limited. This study aimed to evaluate the clinical efficacy of NE in preterm neonates with dopamine-resistant shock compared with that in full-term neonates.Methods This was a single-centre, retrospective (January 2010–December 2020) cohort study of neonates with persistent shock despite adequate fluid resuscitation and dopamine or dobutamine administration at ≥10 μg/kg/min. Medical records of neonates treated with NE were retrospectively reviewed to collect respiratory and haemodynamic parameters and results of arterial blood gas (ABG) tests before and 8 hours after NE infusion. The effectiveness of NE was assessed using changes in clinical parameters and multiple regression models for mortality among subgroups of preterm and full-term neonates.Results Ninety-two neonates (76% preterm) who received NE infusion were included in the study. NE infusion was started after a median of 7 hours (IQR 2–19 hours) after shock onset. Among the preterm neonates, the maximum dose of NE infusion was 0.5 (IQR 0.3–1.0) µg/kg/min with a median duration of 45 (IQR 24.0–84.5) hours. Haemodynamic dysfunction was ameliorated with increased blood pressure, decreased heart rate and improved ABG results. Preterm neonates with septic shock tended to have a reduced response to NE; however, preterm neonates with persistent pulmonary hypertension of the newborn tended to have a better response. Thirty-four (37%) neonates died in our cohort. The timing, dose and duration of NE use were not associated with neonatal mortality.Conclusions Although using NE effectively improves clinical parameters in preterm neonates with dopamine-resistant shock, our study is underpowered to identify the association between NE infusion and mortality in preterm neonates with dopamine-resistant shock.https://bmjpaedsopen.bmj.com/content/7/1/e001804.full
spellingShingle Yifan Sun
Zhiling Li
Pei Lu
Xiaohui Gong
Wenchao Hong
Use of norepinephrine in preterm neonates with dopamine-resistant shock: a retrospective single-centre cross-sectional study
BMJ Paediatrics Open
title Use of norepinephrine in preterm neonates with dopamine-resistant shock: a retrospective single-centre cross-sectional study
title_full Use of norepinephrine in preterm neonates with dopamine-resistant shock: a retrospective single-centre cross-sectional study
title_fullStr Use of norepinephrine in preterm neonates with dopamine-resistant shock: a retrospective single-centre cross-sectional study
title_full_unstemmed Use of norepinephrine in preterm neonates with dopamine-resistant shock: a retrospective single-centre cross-sectional study
title_short Use of norepinephrine in preterm neonates with dopamine-resistant shock: a retrospective single-centre cross-sectional study
title_sort use of norepinephrine in preterm neonates with dopamine resistant shock a retrospective single centre cross sectional study
url https://bmjpaedsopen.bmj.com/content/7/1/e001804.full
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