PMID- 37445326 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230919 IS - 2077-0383 (Print) IS - 2077-0383 (Electronic) IS - 2077-0383 (Linking) VI - 12 IP - 13 DP - 2023 Jun 26 TI - Defining Peri-Operative Myocardial Injury during Cardiac Surgery Using High-Sensitivity Troponin T. LID - 10.3390/jcm12134291 [doi] LID - 4291 AB - OBJECTIVE: Cut-offs for high-sensitivity troponin (hs-Tn) elevations to define prognostically significant peri-operative myocardial injury (PMI) in cardiac surgery is not well-established. We evaluated the associations between peri-operative high-sensitivity troponin T (hs-TnT) elevations and 1-year all-cause mortality in patients undergoing cardiac surgery. METHODS: The prognostic significance of baseline hs-TnT and various thresholds for post-operative hs-TnT elevation at different time-points on 1-year all-cause mortality following cardiac surgery were assessed after adjusting for baseline hs-TnT and EuroSCORE in a post-hoc analysis of the ERICCA trial. RESULTS: 1206 patients met the inclusion criteria. Baseline elevation in hs-TnT >x1 99th percentile upper reference limit (URL) was significantly associated with 1-year all-cause mortality (adjusted hazard ratio 1.90, 95% confidence interval 1.15-3.13). In the subgroup with normal baseline hs-TnT (n = 517), elevation in hs-TnT at all post-operative time points was associated with higher 1-year mortality, reaching statistical significance for elevations above: >/=100 x URL at 6 h; >/=50 x URL at 12 and 24 h; >/=35 x URL at 48 h; and >/=30 x URL at 72 h post-surgery. Elevation in hs-TnT at 24 h >/= 50 x URL had the optimal sensitivity and specificity (73% and 75% respectively). When the whole cohort of patients was analysed, including those with abnormal baseline hs-TnT (up to 10 x URL), the same threshold had optimal sensitivity and specificity (66% and 70%). CONCLUSIONS: Both baseline and post-operative hs-TnT elevations are independently associated with 1-year all-cause mortality in patients undergoing cardiac surgery. The optimal threshold to define a prognostically significant PMI in our study was >/=50 x URL elevation in hs-TnT at 24 h. FAU - Sharma, Vikram AU - Sharma V AD - Department of Cardiovascular Medicine, University of Iowa, Iowa City, IA 52242, USA. FAU - Zheng, Huili AU - Zheng H AD - National Registry of Diseases, Health Promotion Board, Singapore 168937, Singapore. FAU - Candilio, Luciano AU - Candilio L AUID- ORCID: 0000-0002-1886-0119 AD - Department of Cardiology, Royal Free Hospital, London NW3 2QG, UK. FAU - Nicholas, Jennifer M AU - Nicholas JM AUID- ORCID: 0000-0001-6023-0391 AD - Clinical Trials Unit, Department of Medical Statistics, London School of Hygiene & Tropical Medicine, London WC1E 7HT, UK. FAU - Clayton, Tim AU - Clayton T AUID- ORCID: 0000-0002-1266-3288 AD - Clinical Trials Unit, Department of Medical Statistics, London School of Hygiene & Tropical Medicine, London WC1E 7HT, UK. FAU - Yellon, Derek M AU - Yellon DM AD - The Hatter Cardiovascular Institute, University College London, London WC1E 6HX, UK. FAU - Bulluck, Heerajnarain AU - Bulluck H AUID- ORCID: 0000-0002-1985-1783 AD - Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds LS2 9JT, UK. AD - Department of Cardiology, Leeds General Infirmary, Leeds Teaching Hospitals NHS Trust, Leeds LS1 3EX, UK. FAU - Hausenloy, Derek J AU - Hausenloy DJ AUID- ORCID: 0000-0003-0729-4956 AD - The Hatter Cardiovascular Institute, University College London, London WC1E 6HX, UK. AD - Cardiovascular & Metabolic Disorders Program, Duke-National University of Singapore Medical School, Singapore 169857, Singapore. AD - National Heart Research Institute Singapore, National Heart Centre, Singapore 169609, Singapore. AD - Yong Loo Lin School of Medicine, National University Singapore, Singapore 117597, Singapore. AD - Cardiovascular Research Center, College of Medical and Health Sciences, Asia University, Taichung 41354, Taiwan. LA - eng GR - 09/100/05/National Institute for Health Research/ GR - MOH-STaR21jun-0003/National Medical Research Council/ GR - NMRC CG21APR1006/National Medical Research Council/ GR - NMRC/CG21APRC006/National Medical Research Council/ PT - Journal Article DEP - 20230626 PL - Switzerland TA - J Clin Med JT - Journal of clinical medicine JID - 101606588 PMC - PMC10342425 OTO - NOTNLM OT - coronary artery bypass graft surgery OT - high-sensitivity troponin OT - mortality OT - peri-operative myocardial injury COIS- The authors declare no conflict of interest. EDAT- 2023/07/14 13:06 MHDA- 2023/07/14 13:07 PMCR- 2023/06/26 CRDT- 2023/07/14 01:10 PHST- 2023/05/08 00:00 [received] PHST- 2023/06/11 00:00 [revised] PHST- 2023/06/21 00:00 [accepted] PHST- 2023/07/14 13:07 [medline] PHST- 2023/07/14 13:06 [pubmed] PHST- 2023/07/14 01:10 [entrez] PHST- 2023/06/26 00:00 [pmc-release] AID - jcm12134291 [pii] AID - jcm-12-04291 [pii] AID - 10.3390/jcm12134291 [doi] PST - epublish SO - J Clin Med. 2023 Jun 26;12(13):4291. doi: 10.3390/jcm12134291.