Evidence map›Paper›PMID 29183276›Full record

SynthesisBMC emergency medicine2017

The effectiveness of prehospital hypertonic saline for hypotensive trauma patients: a systematic review and meta-analysis.

I E Blanchard, A Ahmad, K L Tang, P E Ronksley, D Lorenzetti, G Lazarenko, E S Lang, C J Doig, H T Stelfox

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in BMC emergency medicine, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
1.6field-weighted citation impact, top 15% of its field
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

1 citing paper in PubMed, 14 citations in OpenAlex.

  1. Article
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

9 authors at 2 institutions in 1 country.

I E BlanchardAlberta Health Services, Emergency Medical Services, Calgary, Alberta, Canada. Ian.blanchard@AHS.ca.
A AhmadUniversity of Calgary, Cumming School of Medicine, Department of Community Health Sciences, Calgary, Alberta, Canada.
K L TangUniversity of Calgary, Cumming School of Medicine, Department of Medicine, Calgary, Alberta, Canada.
P E RonksleyUniversity of Calgary, Cumming School of Medicine, Department of Community Health Sciences, Calgary, Alberta, Canada.
D LorenzettiUniversity of Calgary, Cumming School of Medicine, Department of Community Health Sciences, Calgary, Alberta, Canada.
G LazarenkoAlberta Health Services, Emergency Medical Services, Calgary, Alberta, Canada.
E S LangUniversity of Calgary, Cumming School of Medicine, Department of Emergency Medicine, Calgary, Alberta, Canada.
C J DoigUniversity of Calgary, Cumming School of Medicine, Department of Critical Care, Calgary, Alberta, Canada.
H T StelfoxUniversity of Calgary, Cumming School of Medicine, Department of Critical Care, Calgary, Alberta, Canada.
University of Calgary · CAAlberta Health Services · CA

Funding

CIHR
6 · The paper itself

Abstract

backgroundThe optimal prehospital fluid for the treatment of hypotension is unknown. Hypertonic fluids may increase circulatory volume and mute the pro-inflammatory response of the body to injury and illness. The purpose of this systematic review is to determine whether in patients presenting with hypotension in the prehospital setting (population), the administration of hypertonic saline (intervention), compared to an isotonic fluid (control), improves survival to hospital discharge (outcome).

methodsSearches were conducted in Medline, Embase, CINAHL, and CENTRAL from the date of database inception to November, 2016, and included all languages. Two reviewers independently selected randomized control trials of hypotensive human participants administered hypertonic saline in the prehospital setting. The comparison was isotonic fluid, which included normal saline, and near isotonic fluids such as Ringer's Lactate. Assessment of study quality was done using the Cochrane Collaborations' risk of bias tool and a fixed effect meta-analysis was conducted to determine the pooled relative risk of survival to hospital discharge. Secondary outcomes were reported for fluid requirements, multi-organ failure, adverse events, length of hospital stay, long term survival and disability.

resultsOf the 1160 non-duplicate citations screened, thirty-eight articles underwent full-text review, and five trials were included in the systematic review. All studies administered a fixed 250 ml dose of 7.5% hypertonic saline, except one that administered 300 ml. Two studies used normal saline, two Ringer's Lactate, and one Ringer's Acetate as control. Routine care co-interventions included isotonic fluids and colloids. Five studies were included in the meta-analysis (n = 1162 injured patients) with minimal statistical heterogeneity (I

conclusionsThere was no significant difference in important clinical outcomes for hypotensive injured patients administered hypertonic saline compared to isotonic fluid in the prehospital setting. Hypertonic saline cannot be recommended for use in prehospital clinical practice for the management of hypotensive injured patients based on the available data. PROSPERO registration # CRD42016053385 .

Indexed as

Emergency Medical ServicesFluid TherapyHumansHypotensionSaline Solution, HypertonicTreatment OutcomeWounds and InjuriesSaline Solution, HypertonicAllied health personnelEmergency medical servicesFluid therapyHypotension

Identifiers

PMID29183276
PMCPMC5706402
OpenAlexW2768959244

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.