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非洲儿童严重贫血的输血管理:共识算法。

Transfusion management of severe anaemia in African children: a consensus algorithm.

机构信息

Department of Infectious Disease, Division of Medicine, Institute of Global Health and Innovation, Imperial College, London, UK.

Uganda Blood Transfusion Services (BTS), National BTS, Kampala, Uganda.

出版信息

Br J Haematol. 2021 Jun;193(6):1247-1259. doi: 10.1111/bjh.17429. Epub 2021 May 6.

Abstract

The phase III Transfusion and Treatment of severe anaemia in African Children Trial (TRACT) found that conservative management of uncomplicated severe anaemia [haemoglobin (Hb) 40-60 g/l] was safe, and that transfusion volume (20 vs. 30 ml/kg whole blood equivalent) for children with severe anaemia (Hb <60 g/l) had strong but opposing effects on mortality, depending on fever status (>37·5°C). In 2020 a stakeholder meeting of paediatric and blood transfusion groups from Africa reviewed the results and additional analyses. Among all 3196 children receiving an initial transfusion there was no evidence that nutritional status, presence of shock, malaria parasite burden or sickle cell disease status influenced outcomes or modified the interaction with fever status on volume required. Fever status at the time of ordering blood was a reliable determinant of volume required for optimal outcome. Elevated heart and respiratory rates normalised irrespective of transfusion volume and without diuretics. By consensus, a transfusion management algorithm was developed, incorporating three additional measurements of Hb post-admission, alongside clinical monitoring. The proposed algorithm should help clinicians safely implement findings from TRACT. Further research should assess its implementation in routine clinical practice.

摘要

III 期非洲儿童严重贫血输血与治疗试验(TRACT)发现,对无并发症的严重贫血(血红蛋白[Hb]40-60g/l)进行保守治疗是安全的,且对严重贫血(Hb<60g/l)患儿的输血量(20 与 30ml/kg 全血当量)对死亡率有强烈但相反的影响,取决于发热状态(>37.5°C)。2020 年,来自非洲的儿科和输血团体的利益相关者会议对结果和其他分析进行了审查。在所有接受初始输血的 3196 名儿童中,没有证据表明营养状况、休克存在、疟原虫负担或镰状细胞病状态影响结局或改变与发热状态对所需体积的相互作用。下血订单时的发热状态是决定达到最佳结局所需体积的可靠决定因素。升高的心率和呼吸频率无论输血量如何均会恢复正常,且无需使用利尿剂。通过协商,制定了输血管理算法,纳入了入院后 Hb 的另外三项测量值,以及临床监测。该拟议的算法应有助于临床医生安全地实施 TRACT 的发现。还应开展进一步的研究,评估其在常规临床实践中的实施情况。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fa5e/7611319/6f60263b6a1c/EMS130214-f001.jpg

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