Evidence map›Paper›PMID 26656373›Full record

Observational studyMedicine2015

Can We Reduce Negative Blood Cultures With Clinical Scores and Blood Markers? Results From an Observational Cohort Study.

Svenja Laukemann, Nina Kasper, Prasad Kulkarni, Deborah Steiner, Anna Christina Rast, Alexander Kutz, Susan Felder, Sebastian Haubitz, Lukas Faessler, Andreas Huber and 3 more

Erratum issued 2 registry-linked trialsOpen access · goldAbstract readObservational Study
In one paragraph

Observational study in Medicine, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. It is linked to 2 registered trials, which are not on this map. Cited by 40 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed, 2 pooled it
4.1field-weighted citation impact, top 5% 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.

NCT01768494 completednot on this map

Optimizing Triage and Hospitalisation In Adult General Medical Emergency Patients: the TRIAGE Study

TypeobservationalSponsorUniversity Hospital, Basel, SwitzerlandRan2013 to 2014Enrolled7,000ConditionsEmergencies
NCT05686577 completednot on this mapstarted 2022, after this paper: background citation

Comment Diminuer Les hémocultures Inutiles : Construction et Validation d'un Score prédictif de positivité Des hémocultures en réanimation.

TypeobservationalSponsorUniversity Hospital, ToursRan2022 to 2023Enrolled2,411ConditionsInfection, Bacterial, Infection, Fungal, BacteremiaArmsno intervention
3 · Its place in the literature

Who cites it

40 citing papers in PubMed, 2 syntheses or guidelines pooled it, 86 citations in OpenAlex.

  1. [Diagnostic accuracy of procalcitonin for bacteremia in the emergency department: a systematic review].Revista espanola de quimioterapia : publicacion oficial de la Sociedad Espanola de Quimioterapia · 2024
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  12. [New predictive models of bacteremia in the emergency department: a step forward].Revista espanola de quimioterapia : publicacion oficial de la Sociedad Espanola de Quimioterapia · 2022
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

13 authors at 1 institution in 1 country.

Svenja LaukemannFrom the University Department of Internal Medicine, Medical Faculty of the University of Basel, Kantonsspital Aarau, Switzerland (SL, NK, DS, ACR, AK, SF, LF, BM, PS); Asclepius Medical Communications LLC, Ridgewood, NJ, USA (PK); University Clinic of Infectious Diseases, University Hospital Bern (SH); Institute of Psychology, University of Bern (LF); Department of Laboratory Medicine, Kantonsspital (AH); and Clinic of Infectious Diseases, Kantonsspital Aarau, Switzerland (CAF).
Nina Kasper
Prasad Kulkarni
Deborah Steiner
Anna Christina Rast
Alexander Kutz
Susan Felder
Sebastian Haubitz
Lukas Faessler
Andreas Huber
Christoph A Fux
Beat Mueller
Philipp Schuetz
Kantonsspital Aarau · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Only a small proportion of blood cultures routinely performed in emergency department (ED) patients is positive. Multiple clinical scores and biomarkers have previously been examined for their ability to predict bacteremia. Conclusive clinical validation of these scores and biomarkers is essential.This observational cohort study included patients with suspected infection who had blood culture sampling at ED admission. We assessed 5 clinical scores and admission concentrations of procalcitonin (PCT), C-reactive protein (CRP), lymphocyte and white blood cell counts, the neutrophil-lymphocyte count ratio (NLCR), and the red blood cell distribution width (RDW). Two independent physicians assessed true blood culture positivity. We used logistic regression models with area under the curve (AUC) analysis.Of 1083 patients, 104 (9.6%) had positive blood cultures. Of the clinical scores, the Shapiro score performed best (AUC 0.729). The best biomarkers were PCT (AUC 0.803) and NLCR (AUC 0.700). Combining the Shapiro score with PCT levels significantly increased the AUC to 0.827. Limiting blood cultures only to patients with either a Shapiro score of ≥4 or PCT > 0.1 μg/L would reduce negative sampling by 20.2% while still identifying 100% of positive cultures. Similarly, a Shapiro score ≥3 or PCT >0.25 μg/L would reduce cultures by 41.7% and still identify 96.1% of positive blood cultures.Combination of the Shapiro score with admission levels of PCT can help reduce unnecessary blood cultures with minimal false negative rates.The study was registered on January 9, 2013 at the 'ClinicalTrials.gov' registration web site (NCT01768494).

Indexed as

AgedBacteremiaBacteriological TechniquesBiomarkersCalcitoninCalcitonin Gene-Related PeptideC-Reactive ProteinErythrocytesFalse Negative ReactionsFemaleHumansLeukocyte CountLymphocytesMaleMiddle AgedNeutrophilsBiomarkersCALCA protein, humanCalcitoninCalcitonin Gene-Related PeptideC-Reactive ProteinProtein Precursors

Identifiers

PMID26656373
PMCPMC5008518
OpenAlexW2335714757

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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.