Evidence map›Paper›PMID 36872322›Full record

SynthesisCritical care (London, England)2023

Shock index as predictor of massive transfusion and mortality in patients with trauma: a systematic review and meta-analysis.

Andrea Carsetti, Riccardo Antolini, Erika Casarotta, Elisa Damiani, Francesco Gasparri, Benedetto Marini, Erica Adrario, Abele Donati

Abstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Critical care (London, England), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

33 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  16. A comparison of clinical prediction scores for massive traumatic hemorrhage.Scandinavian journal of trauma, resuscitation and emergency medicine · 2025
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  17. Prediction of massive transfusion and mortality in early trauma care: A retrospective analysis of scoring systems.Ulusal travma ve acil cerrahi dergisi = Turkish journal of trauma & emergency surgery : TJTES · 2025
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Andrea CarsettiDepartment of Biomedical Sciences and Public Health, Università Politecnica delle Marche, Ancona, Italy. a.carsetti@univpm.it.
Riccardo AntoliniDepartment of Biomedical Sciences and Public Health, Università Politecnica delle Marche, Ancona, Italy.
Erika CasarottaDepartment of Biomedical Sciences and Public Health, Università Politecnica delle Marche, Ancona, Italy.
Elisa DamianiDepartment of Biomedical Sciences and Public Health, Università Politecnica delle Marche, Ancona, Italy.
Francesco GasparriAnesthesia and Intensive Care Unit, Azienda Ospedaliero Universitaria delle Marche, Ancona, Italy.
Benedetto MariniAnesthesia and Intensive Care Unit, Azienda Ospedaliero Universitaria delle Marche, Ancona, Italy.
Erica AdrarioDepartment of Biomedical Sciences and Public Health, Università Politecnica delle Marche, Ancona, Italy.
Abele DonatiDepartment of Biomedical Sciences and Public Health, Università Politecnica delle Marche, Ancona, Italy.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundManagement of bleeding trauma patients is still a difficult challenge. Massive transfusion (MT) requires resources to ensure the safety and timely delivery of blood products. Early prediction of MT need may be useful to shorten the time process of blood product preparation. The primary aim of this study was to assess the accuracy of shock index to predict the need for MT in adult patients with trauma. For the same population, we also assessed the accuracy of SI to predict mortality.

methodsThis systematic review and meta-analysis was performed in accordance with the PRISMA guidelines. We performed a systematic search on MEDLINE, Scopus, and Web of Science from inception to March 2022. Studies were included if they reported MT or mortality with SI recorded at arrival in the field or the emergency department. The risk of bias was assessed using the QUADAS-2.

resultsThirty-five studies were included in the systematic review and meta-analysis, for a total of 670,728 patients. For MT the overall sensibility was 0.68 [0.57; 0.76], the overall specificity was 0.84 [0.79; 0.88] and the AUC was 0.85 [0.81; 0.88]. Positive and Negative Likelihood Ratio (LR+; LR-) were 4.24 [3.18-5.65] and 0.39 [0.29-0.52], respectively. For mortality the overall sensibility was 0.358 [0.238; 0.498] the overall specificity 0.742 [0.656; 0.813] and the AUC 0.553 (confidence region for sensitivity given specificity: [0.4014; 0.6759]; confidence region for specificity given sensitivity: [0.4799; 0.6332]). LR+ and LR- were 1.39 [1.36-1.42] and 0.87 [0.85-0.89], respectively.

conclusionsOur study demonstrated that SI may have a limited role as the sole tool to predict the need for MT in adult trauma patients. SI is not accurate to predict mortality but may have a role to identify patients with a low risk of mortality.

Indexed as

Blood TransfusionEmergency Service, HospitalAdultHumansPatientsHemorrhagic shockMassive transfusionMortalityShock indexTrauma

Identifiers

PMID36872322
PMCPMC9985849

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.