Peri-operative red blood cell transfusion in neonates and infants: NEonate and Children audiT of Anaesthesia pRactice IN Europe: A prospective European multicentre observational study

Alexander Fuchs, Nicola Disma, Katalin Virág, Francis Ulmer, Walid Habre, Jurgen C de Graaff, Thomas Riva, NECTARINE Group of the European Society of Anaesthesiology and Intensive Care Clinical Trial Network

Abstract

Background: Little is known about current clinical practice concerning peri-operative red blood cell transfusion in neonates and small infants. Guidelines suggest transfusions based on haemoglobin thresholds ranging from 8.5 to 12 g dl-1, distinguishing between children from birth to day 7 (week 1), from day 8 to day 14 (week 2) or from day 15 (≥week 3) onwards.

Objective: To observe peri-operative red blood cell transfusion practice according to guidelines in relation to patient outcome.

Design: A multicentre observational study.

Setting: The NEonate-Children sTudy of Anaesthesia pRactice IN Europe (NECTARINE) trial recruited patients up to 60 weeks' postmenstrual age undergoing anaesthesia for surgical or diagnostic procedures from 165 centres in 31 European countries between March 2016 and January 2017.

Patients: The data included 5609 patients undergoing 6542 procedures. Inclusion criteria was a peri-operative red blood cell transfusion.

Main outcome measures: The primary endpoint was the haemoglobin level triggering a transfusion for neonates in week 1, week 2 and week 3. Secondary endpoints were transfusion volumes, 'delta haemoglobin' (preprocedure - transfusion-triggering) and 30-day and 90-day morbidity and mortality.

Results: Peri-operative red blood cell transfusions were recorded during 447 procedures (6.9%). The median haemoglobin levels triggering a transfusion were 9.6 [IQR 8.7 to 10.9] g dl-1 for neonates in week 1, 9.6 [7.7 to 10.4] g dl-1 in week 2 and 8.0 [7.3 to 9.0] g dl-1 in week 3. The median transfusion volume was 17.1 [11.1 to 26.4] ml kg-1 with a median delta haemoglobin of 1.8 [0.0 to 3.6] g dl-1. Thirty-day morbidity was 47.8% with an overall mortality of 11.3%.

Conclusions: Results indicate lower transfusion-triggering haemoglobin thresholds in clinical practice than suggested by current guidelines. The high morbidity and mortality of this NECTARINE sub-cohort calls for investigative action and evidence-based guidelines addressing peri-operative red blood cell transfusions strategies.

Trial registration: ClinicalTrials.gov, identifier: NCT02350348.

Copyright © 2021 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of the European Society of Anaesthesiology and Intensive Care.

Figures

Fig. 1
Fig. 1
Flow-chart of included/analysed patients.
Fig. 2
Fig. 2
Histogram of the transfusion-triggering haemoglobin (Hb) thresholds in gram per decilitre (g dl−1) classified by week of life
Fig. 3
Fig. 3
Regression line of the transfusion-triggering haemoglobin (Hb) in g dl−1 classified by week of life in relation to postmenstrual age (weeks)

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Source: PubMed

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