Evidence map›Paper›PMID 26036786›Full record

Observational studyBMC research notes2015

Consequences of high-sensitivity troponin T testing applied in a primary care population with chest pain compared with a commercially available point-of-care troponin T analysis: an observational prospective study.

Per O Andersson, Jan-Erik Karlsson, Eva Landberg, Karin Festin, Staffan Nilsson

Abstract readComparative StudyMulticenter StudyObservational Study
In one paragraph

Observational study in BMC research notes, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 2 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

12 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Review
  4. Review
  5. Article
  6. Article
  7. Observational
  8. Article
  9. Article
  10. Article
  11. Article
  12. 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

5 authors.

Per O AnderssonPrimary Health Care and Department of Medical and Health Sciences, Linköping University, Linköping, Sweden. per.o.andersson@regionostergotland.se.
Jan-Erik KarlssonDepartment of Internal Medicine, County Council of Jönköping, Jönköping, Sweden. jan-erik.karlsson@rjl.se.
Eva LandbergDepartment of Clinical Chemistry and Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden. eva.landberg@regionostergotland.se.
Karin FestinDepartment of Medical and Health Sciences, Linköping University, SE-581 83, Linköping, Sweden. karin.festin@liu.se.
Staffan NilssonPrimary Health Care and Department of Medical and Health Sciences, Linköping University, Norrköping, Sweden. staffan.g.nilsson@liu.se.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThere is a demand for a highly sensitive and specific point-of care test to detect acute myocardial infarction (AMI). It is unclear if a high-sensitivity troponin assay will have enough discriminative power to become a decision support in primary care. The aim of this study was to evaluate a high-sensitivity troponin T assay performed in three primary health care centres in southeast Sweden and to compare the outcome with a point-of-care troponin T test.

methodsThis study included 115 patients who consulted their general practitioner for chest pain, dyspnoea on exertion, unexplained weakness and/or fatigue in the last 7 days. Troponin T was analysed by a point-of-care test and a high-sensitivity method together with N-terminal pro-B-type natriuretic peptide (NT-proBNP) and creatinine. All patients were checked for AMI or unstable angina (UA) within 30 days of study enrolment. Univariate and multivariate logistic regression was carried out to examine possible connections between troponin T ≥ 15 ng/L, clinical variables and laboratory findings at baseline. In addition, 21 patients with troponin T ≥ 15 ng/L and no signs of AMI or UA were followed up for 2-3 years.

resultsThree patients were diagnosed with AMI and three with UA. At the ≥ 15 ng/L cut-off, the troponin T method had 100% sensitivity, 75% specificity for AMI and a positive predictive value of 10%. The troponin T point-of-care test missed one case of AMI and the detection limit was 50 ng/L. Troponin T ≥ 15 ng/L was correlated to age ≥65 years (odds ratio (OR), 10.9 95% CI 2.28-51.8) and NT-proBNP in accordance with heart failure (OR 8.62 95% CI 1.61-46.1). Fourteen of the 21 patients, without signs of AMI or UA at baseline, still had increased troponin T at follow-up after 2-3 years.

conclusionsA high-sensitivity troponin T assay could become useful in primary care as a point-of-care test for patients <65 years. For patients older than 65-70 years, a higher decision limit than ≥15 ng/L should be considered and used in conjunction with clinical parameters and possibly with NT-proBNP.

Indexed as

Point-of-Care TestingAgedAged, 80 and overAge FactorsAngina PectorisBiomarkersChi-Square DistributionCreatinineFemaleHumansLogistic ModelsMaleMiddle AgedMultivariate AnalysisMyocardial InfarctionNatriuretic Peptide, BrainBiomarkersCreatinineNatriuretic Peptide, BrainPeptide Fragmentspro-brain natriuretic peptide (1-76)TNNT2 protein, humanTroponin T

Identifiers

PMID26036786
PMCPMC4467613

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.