Evidence map›Paper›PMID 33219671›Full record

ArticleEuropace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology2021

Diagnostic yield and accuracy in a tertiary referral syncope unit validating the ESC guideline on syncope: a prospective cohort study.

Jelle S Y de Jong, Minou R Snijders Blok, Roland D Thijs, Mark P M Harms, Martin E W Hemels, Joris R de Groot, Nynke van Dijk, Frederik J de Lange

Abstract read
In one paragraph

Article in Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing 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

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

  1. Pooled it
  2. Review
  3. Reproducibility of orthostatic blood pressure measurements in a middle-aged population-based cohort: a one-year follow-up study.Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 2026
    Article
  4. Haemodynamics of (pre)syncope during carotid sinus massage: a beat-to-beat analysis of haemodynamic parameters during carotid sinus massage.Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 2026
    Article
  5. Observational
  6. Design and rationale of the RISC-trial: multicentreEuropean heart journal open · 2026
    Article
  7. Now is the time to take syncope seriously.The British journal of cardiology · 2026
    Article
  8. Carotid sinus massage in clinical practice: the Six-Step-Method.Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology · 2024
    Article
  9. Article
  10. Interventions aimed to increase average 24-h systolic blood pressure reduce blood pressure drops in patients with reflex syncope and orthostatic intolerance.Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology · 2024
    Observational
  11. A cross-sectional nationwide survey of guideline based syncope units in the Netherlands: the SU-19 score-a novel validation for best practices.Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology · 2023
    Article
  12. Article
  13. Twenty-five years of research on syncope.Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology · 2023
    Article
  14. Definitive aetiology of unexplained syncope after cardiovascular autonomic tests in a tertiary syncope unit.Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology · 2023
    Article
  15. Article
  16. Review
  17. Article
  18. Sleep syncope: a prospective cohort study.Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 2022
    Article
  19. Sleep syncope: a new clinical entity or just a vasovagal syncope during wakefulness after sleep onset?Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 2022
    Article
  20. Diagnostic criteria for initial orthostatic hypotension: a narrative review.Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 2021
    Review
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.

Jelle S Y de JongAmsterdam UMC, University of Amsterdam, Heart Center; Department of Clinical and Experimental Cardiology, Amsterdam Cardiovascular Sciences, Meibergdreef 9, Amsterdam, The Netherlands.ORCID 0000-0001-9522-2455
Minou R Snijders BlokAmsterdam UMC, University of Amsterdam, Heart Center; Department of Clinical and Experimental Cardiology, Amsterdam Cardiovascular Sciences, Meibergdreef 9, Amsterdam, The Netherlands.
Roland D ThijsStichting Epilepsie Instellingen Nederland (SEIN), Heemstede, The Netherlands.
Mark P M HarmsDepartment of Internal and Emergency Medicine, University Medical Centre Groningen, University of Groningen, Groningen, The Netherlands.
Martin E W HemelsDepartment of Cardiology, Rijnstate Hospital, Arnhem, The Netherlands.
Joris R de GrootAmsterdam UMC, University of Amsterdam, Heart Center; Department of Clinical and Experimental Cardiology, Amsterdam Cardiovascular Sciences, Meibergdreef 9, Amsterdam, The Netherlands.
Nynke van DijkDepartment of General Practice, Amsterdam Public Health Research Institute, Academic Medical Centre, Amsterdam, The Netherlands.
Frederik J de LangeAmsterdam UMC, University of Amsterdam, Heart Center; Department of Clinical and Experimental Cardiology, Amsterdam Cardiovascular Sciences, Meibergdreef 9, Amsterdam, The Netherlands.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsTo assess in patients with transient loss of consciousness the diagnostic yield, accuracy, and safety of the structured approach as described in the ESC guidelines in a tertiary referral syncope unit. METHODS AND

resultsProspective cohort study including 264 consecutive patients (≥18 years) referred with at least one self-reported episode of transient loss of consciousness and presenting to the syncope unit between October 2012 and February 2015. The study consisted of three phases: history taking (Phase 1), autonomic function tests (AFTs) (Phase 2), and after 1.5-year follow-up with assessment by a multidisciplinary committee (Phase 3). Diagnostic yield was assessed after Phases 1 and 2. Empirical diagnostic accuracy was measured for diagnoses according to the ESC guidelines after Phase 3. The diagnostic yield after Phase 1 (history taking) was 94.7% (95% CI: 91.1-97.0%, 250/264 patients) and increased to 97.0% (93.9-98.6%, 256/264 patients) after Phase 2. The overall diagnostic accuracy (as established in Phase 3) of the Phases 1 and 2 diagnoses was 90.6% (95% CI: 86.2-93.8%, 232/256 patients). No life-threatening conditions were missed. Three patients died, two unrelated to the cause of transient loss of consciousness, and one whom remained undiagnosed.

conclusionA clinical work-up at a tertiary syncope unit using the ESC guidelines has a high diagnostic yield, accuracy, and safety. History taking (Phase 1) is the most important diagnostic tool. Autonomic function tests never changed the Phase 1 diagnosis but helped to increase the certainty of the Phase 1 diagnosis in many patients and yield additional diagnoses in patients who remained undiagnosed after Phase 1. Diagnoses were inaccurate in 9.4%, but no serious conditions were missed. This is adequate for clinical practice.

Indexed as

Emergency Service, HospitalSyncopeHumansProspective StudiesReferral and ConsultationDiagnostic accuracyDiagnostic yieldSyncopeTransient loss of consciousness

Identifiers

PMID33219671
PMCPMC8139816

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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.