• J du Fay de Lavallaz, P Badertscher, T Zimmermann, T Nestelberger, J Walter, I Strebel, C Coelho, Ò Miró, E Salgado, M Christ, N Geigy, L Cullen, M Than, Javier Martin-SanchezFFGREAT - Global Research on Acute Conditions Team, Roma, Italy.Servicio de Urgencias, Hospital Clínico San Carlos, Madrid, Spain., S Di Somma, Frank PeacockWWGREAT - Global Research on Acute Conditions Team, Roma, Italy.Department of Emergency Medicine, Baylor College of Medicine, Houston, TX, USA., B Morawiec, D Wussler, D I Keller, D Gualandro, E Michou, M Kühne, J Lohrmann, T Reichlin, C Mueller, and BASEL IX Investigators.
• From the, Department of Cardiology, Cardiovascular Research Institute Basel (CRIB), University Hospital Basel, University of Basel, Basel, Switzerland.
• J. Intern. Med. 2021 Sep 1; 290 (3): 728-739.

BackgroundThe diagnosis of cardiac syncope remains a challenge in the emergency department (ED).ObjectiveAssessing the diagnostic accuracy of the early standardized clinical judgement (ESCJ) including a standardized syncope-specific case report form (CRF) in comparison with a recommended multivariable diagnostic score.MethodsIn a prospective international observational multicentre study, diagnostic accuracy for cardiac syncope of ESCJ by the ED physician amongst patients ≥ 40 years presenting with syncope to the ED was directly compared with that of the Evaluation of Guidelines in Syncope Study (EGSYS) diagnostic score. Cardiac syncope was centrally adjudicated independently of the ESCJ or conducted workup by two ED specialists based on all information available up to 1-year follow-up. Secondary aims included direct comparison with high-sensitivity cardiac troponin I (hs-cTnI) and B-type natriuretic peptide (BNP) concentrations and a Lasso regression to identify variables contributing most to ESCJ.ResultsCardiac syncope was adjudicated in 252/1494 patients (15.2%). The diagnostic accuracy of ESCJ for cardiac syncope as quantified by the area under the curve (AUC) was 0.87 (95% CI: 0.84-0.89), and higher compared with the EGSYS diagnostic score (0.73 (95% CI: 0.70-0.76)), hs-cTnI (0.77 (95% CI: 0.73-0.80)) and BNP (0.77 (95% CI: 0.74-0.80)), all P < 0.001. Both biomarkers (alone or in combination) on top of the ESCJ significantly improved diagnostic accuracy.ConclusionESCJ including a standardized syncope-specific CRF has very high diagnostic accuracy and outperforms the EGSYS score, hs-cTnI and BNP.© 2021 Association for Publication of The Journal of Internal Medicine.

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