Evidence map›Paper›PMID 31285206›Full record

Observational studyAnnals of family medicine2019

A Nationwide Flash-Mob Study for Suspected Acute Coronary Syndrome.

Angel M R Schols, Robert T A Willemsen, Tobias N Bonten, Martijn H Rutten, Patricia M Stassen, Bas L J H Kietselaer, Geert-Jan Dinant, Jochen W L Cals

Abstract readObservational Study
In one paragraph

Observational study in Annals of family medicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 3 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

14 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Article
  5. Article
  6. Article
  7. Evaluation of the Marburg Heart Score and INTERCHEST score compared to current telephone triage for chest pain in out-of-hours primary care.Netherlands heart journal : monthly journal of the Netherlands Society of Cardiology and the Netherlands Heart Foundation · 2023
    Article
  8. Article
  9. Article
  10. Article
  11. Performance of a simplified HEART score and HEART-GP score for evaluating chest pain in urgent primary care.Netherlands heart journal : monthly journal of the Netherlands Society of Cardiology and the Netherlands Heart Foundation · 2021
    Article
  12. Flash mob: a multidisciplinary review.Social network analysis and mining · 2021
    Review
  13. Recent developments in diagnosis and risk stratification of non-ST-elevation acute coronary syndrome.Netherlands heart journal : monthly journal of the Netherlands Society of Cardiology and the Netherlands Heart Foundation · 2020
    Review
  14. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors.

Angel M R ScholsDepartment of Family Medicine, Care and Public Health Research Institute (CAPHRI), Maastricht University, Maas-tricht, The Netherlands.
Robert T A WillemsenDepartment of Family Medicine, Care and Public Health Research Institute (CAPHRI), Maastricht University, Maas-tricht, The Netherlands.
Tobias N BontenDepartment of Public Health and Primary Care, Leiden University Medical Center, Leiden, The Netherlands.
Martijn H RuttenRadboud Institute for Health Sciences, Scientific Center for Quality of Healthcare (IQ Healthcare), Radboud University Medical Center, Nijmegen, The Netherlands.
Patricia M StassenDepartment of Internal Medicine, Division of General Medicine, Section of Acute Medicine, Care and Public Health Research Institute (CAPHRI), Maastricht University Medical Center, Maastricht, The Netherlands.
Bas L J H KietselaerDepartment of Cardiology, Zuyderland Medical Center, Heerlen and Sittard, The Netherlands.
Geert-Jan DinantDepartment of Family Medicine, Care and Public Health Research Institute (CAPHRI), Maastricht University, Maas-tricht, The Netherlands.
Jochen W L CalsDepartment of Family Medicine, Care and Public Health Research Institute (CAPHRI), Maastricht University, Maas-tricht, The Netherlands j.cals@maastrichtuniversity.nl.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeOur primary objective was to evaluate the Marburg Heart Score (MHS), a clinical decision rule, or to develop an adapted clinical decision rule for family physicians (FPs) to safely rule out acute coronary syndrome (ACS) in patients referred to secondary care for suspected ACS. The secondary objective was to evaluate the feasibility of using the flash-mob method, an innovative study design, for large-scale research in family medicine.

methodsIn this 2-week, nationwide, prospective, observational, flash-mob study, FPs collected data on possible ACS predictors and assessed ACS probability (on a scale of 1-10) in patients referred to secondary care for suspected ACS.

resultsWe collected data for 258 patients in 2 weeks by mobilizing approximately 1 in 5 FPs throughout the country via ambassadors. A final diagnosis was obtained for 243 patients (94.2%), of whom 45 (18.5%) received a diagnosis of ACS. Sex, sex-adjusted age, and ischemic changes on electrocardiography were significantly associated with ACS. The sensitivity of the MHS (cut-off ≤2) was 75.0%, specificity was 44.0%, positive predictive value was 24.3%, and negative predictive value was 88.0%. For the FP assessment (cut-off ≤5), these test characteristics were 86.7%, 41.4%, 25.2%, and 93.2%, respectively.

conclusionsFor patients referred to emergency care, ACS could not be safely ruled out using the MHS or FP clinical assessment. The flash-mob study design may be a feasible alternative research method to investigate relatively simple, clinically relevant research questions in family medicine on a large scale and over a relatively short time frame.

Indexed as

Decision Support TechniquesAcute Coronary SyndromeAgedCase-Control StudiesData CollectionFamily PracticeFeasibility StudiesFemaleHumansMaleMiddle AgedProspective StudiesROC CurveSocial Mediaacute coronary syndromeclinical decision rulefamily medicineflash mob research

Identifiers

PMID31285206
PMCPMC6827655

What OpenQuestion holds

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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.