TY - JOUR A1 - Giannitsis, Evangelos A1 - Clifford, Piers A1 - Slagman, Anna A1 - Rüdelstein, Ralph A1 - Liebetrau, Christoph A1 - Hamm, Christian A1 - Honnart, Didier A1 - Huber, Kurt A1 - Vollert, Jörn Ole A1 - Simonelli, Carlo A1 - Schröder, Malte A1 - Wiemer, Jan A1 - Müller-Hennessen, Matthias A1 - Schroer, Hinrich A1 - Kastner, Kim A1 - Möckel, Martin T1 - Multicentre cross-sectional observational registry to monitor the safety of early discharge after rule-out of acute myocardial infarction by copeptin and troponin: the Pro-Core registry T2 - BMJ open N2 - Objectives: There is sparse information on the safety of early primary discharge from the emergency department (ED) after rule-out of myocardial infarction in suspected acute coronary syndrome (ACS). This prospective registry aimed to confirm randomised study results in patients at low-to-intermediate risk, with a broader spectrum of symptoms, across different institutional standards and with a range of local troponin assays including high-sensitivity cTn (hs-cTn), cardiac troponin (cTn) and point-of-care troponin (POC Tn). Design: Prospective, multicentre European registry. Setting: 18 emergency departments in nine European countries (Germany, Austria, Switzerland, France, Spain, UK, Turkey, Lithuania and Hungary) Participants: The final study cohort consisted of 2294 patients (57.2% males, median age 57 years) with suspected ACS. Interventions: Using the new dual markers strategy, 1477 patients were eligible for direct discharge, which was realised in 974 (42.5%) of patients. Main outcome measures: The primary endpoint was all-cause mortality at 30 days. Results: Compared with conventional workup after dual marker measurement, the median length of ED stay was 60 min shorter (228 min, 95% CI: 219 to 239 min vs 288 min, 95% CI: 279 to 300 min) in the primary dual marker strategy (DMS) discharge group. All-cause mortality was 0.1% (95% CI: 0% to 0.6%) in the primary DMS discharge group versus 1.1% (95% CI: 0.6% to 1.8%) in the conventional workup group after dual marker measurement. Conventional workup instead of discharge despite negative DMS biomarkers was observed in 503 patients (21.9%) and associated with higher prevalence of ACS (17.1% vs 0.9%, p<0.001), cardiac diagnoses (55.2% vs 23.5%, p<0.001) and risk factors (p<0.01), but with a similar all-cause mortality of 0.2% (95% CI: 0% to 1.1%) versus primary DMS discharge (p=0.64). Conclusions: Copeptin on top of cardiac troponin supports safe discharge in patients with chest pain or other symptoms suggestive of ACS under routine conditions with the use of a broad spectrum of local standard POC, conventional and high-sensitivity troponin assays. Trial registration number NCT02490969. KW - acute coronary syndrome KW - copeptin KW - mortality KW - myocardial infarction KW - registry KW - troponin Y1 - 2019 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/54736 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-547362 SN - 2044-6055 N1 - This is an open access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited, appropriate credit is given, any changes made indicated, and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/. VL - 9 IS - 7, e028311 SP - 1 EP - 11 PB - BMJ Publishing Group CY - London ER -