PMID- 37298012 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20231106 IS - 2077-0383 (Print) IS - 2077-0383 (Electronic) IS - 2077-0383 (Linking) VI - 12 IP - 11 DP - 2023 Jun 2 TI - Outcome of Out-of-Hospital Cardiac Arrest Patients Stratified by Pre-Clinical Loading with Aspirin and Heparin: A Retrospective Cohort Analysis. LID - 10.3390/jcm12113817 [doi] LID - 3817 AB - Background: Out-of-hospital cardiac arrest (OHCA) has a high prevalence of obstructive coronary artery disease and total coronary occlusion. Consequently, these patients are frequently loaded with antiplatelets and anticoagulants before hospital arrival. However, OHCA patients have multiple non-cardiac causes and high susceptibility for bleeding. In brief, there is a gap in the evidence for loading in OHCA patients. Objective: The current analysis stratified the outcome of patients with OHCA according to pre-clinical loading. Material and Methods: In a retrospective analysis of an all-comer OHCA registry, patients were stratified by loading with aspirin (ASA) and unfractionated heparin (UFH). Bleeding rate, survival to hospital discharge and favorable neurological outcomes were measured. Results: Overall, 272 patients were included, of whom 142 were loaded. Acute coronary syndrome was diagnosed in 103 patients. One-third of STEMIs were not loaded. Conversely, 54% with OHCA from non-ischemic causes were pretreated. Loading was associated with increased survival to hospital discharge (56.3 vs. 40.3%, p = 0.008) and a more favorable neurological outcome (80.7 vs. 62.6% p = 0.003). Prevalence of bleeding was comparable (26.8 vs. 31.5%, p = 0.740). Conclusions: Pre-clinical loading did not increase bleeding rates and was associated with favorable survival. Overtreatment of OHCA with non-ischemic origin, but also undertreatment of STEMI-OHCA were documented. Loading without definite diagnosis of sustained ischemia is debatable in the absence of reliable randomized controlled data. FAU - Macherey-Meyer, Sascha AU - Macherey-Meyer S AUID- ORCID: 0000-0002-7080-6611 AD - Clinic III for Internal Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50931 Cologne, Germany. FAU - Heyne, Sebastian AU - Heyne S AD - Clinic III for Internal Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50931 Cologne, Germany. FAU - Meertens, Max M AU - Meertens MM AD - Clinic III for Internal Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50931 Cologne, Germany. FAU - Braumann, Simon AU - Braumann S AD - Clinic III for Internal Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50931 Cologne, Germany. FAU - Niessen, Stephan F AU - Niessen SF AD - Clinic III for Internal Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50931 Cologne, Germany. FAU - Baldus, Stephan AU - Baldus S AD - Clinic III for Internal Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50931 Cologne, Germany. FAU - Lee, Samuel AU - Lee S AD - Clinic III for Internal Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50931 Cologne, Germany. FAU - Adler, Christoph AU - Adler C AD - Clinic III for Internal Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50931 Cologne, Germany. LA - eng PT - Journal Article DEP - 20230602 PL - Switzerland TA - J Clin Med JT - Journal of clinical medicine JID - 101606588 PMC - PMC10253358 OTO - NOTNLM OT - NSTE-ACS OT - OHCA OT - STEMI OT - aspirin OT - heparin COIS- The authors declare no conflict of interest. EDAT- 2023/06/10 15:14 MHDA- 2023/06/10 15:15 PMCR- 2023/06/02 CRDT- 2023/06/10 01:10 PHST- 2023/05/02 00:00 [received] PHST- 2023/05/19 00:00 [revised] PHST- 2023/05/31 00:00 [accepted] PHST- 2023/06/10 15:15 [medline] PHST- 2023/06/10 15:14 [pubmed] PHST- 2023/06/10 01:10 [entrez] PHST- 2023/06/02 00:00 [pmc-release] AID - jcm12113817 [pii] AID - jcm-12-03817 [pii] AID - 10.3390/jcm12113817 [doi] PST - epublish SO - J Clin Med. 2023 Jun 2;12(11):3817. doi: 10.3390/jcm12113817.