PMID- 36707129 OWN - NLM STAT- MEDLINE DCOM- 20230131 LR - 20230215 IS - 2053-3624 (Print) IS - 2053-3624 (Electronic) IS - 2053-3624 (Linking) VI - 10 IP - 1 DP - 2023 Jan TI - Localising culprit artery in inferior STEMI. LID - 10.1136/openhrt-2022-002093 [doi] LID - e002093 AB - BACKGROUND: ST elevation myocardial infarction (STEMI) represents a cardiac emergency. Time to diagnosis, identification of culprit lesion, and intervention are important. Inferior STEMI represents a dilemma for cardiologists. The territory can be supplied by the right coronary artery (RCA) or the left circumflex coronary artery (LCx). Diagnostic algorithms have been proposed to predict the culprit artery. METHODS: We performed a single-centre retrospective cohort analysis of all patients admitted to our hospital from 2008 to 2020 with a diagnosis of inferior STEMI. We examined the diagnostic 12 lead ECG for quantification of ST elevation in leads II and III and compared this to culprit lesion found on angiography. RESULTS: There were 304 patients identified with STEMI in our database; 105 were found to have an inferior myocardial infarction by ECG criteria. Ninety-nine were included in our study with either RCA or LCx culprit lesions on angiography (82 males, 17 females). The average age of these patients was 64.9 years old. Sensitivity, specificity, positive predictive value and negative predictive value for ST elevation in lead II exceeding lead III predicting LCx culprit lesion was 0.32 (95% CI 0.13 to 0.57), 0.94 (95% CI 0.86 to 0.98), 0.55 (95% CI 0.29 to 0.78), 0.85 (95% CI 0.81 to 0.89), respectively. Sensitivity, specificity, positive predictive value and negative predictive value for ST elevation in lead III exceeding lead II predicting RCA culprit lesion was 0.94 (95% CI 0.86 to 0.98), 0.32 (95% CI 0.13 to 0.57), 0.85 (95% CI 0.81 to 0.89), 0.55 (95% CI 0.29 to 0.78), respectively. CONCLUSIONS: In inferior STEMI, comparison of ST elevation in leads II and III can reliably predict culprit lesion artery and guide intervention. SUBJECT INDEXING: Culprit artery localisation, inferior stemi, ECG. CI - (c) Author(s) (or their employer(s)) 2023. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ. FAU - Farhat-Sabet, Ardalon AU - Farhat-Sabet A AUID- ORCID: 0000-0002-5639-0031 AD - Cardiology Service, Department of Medicine, Walter Reed National Military Medical Center, Bethesda, Maryland, USA. FAU - Smith, Alexandra AU - Smith A AUID- ORCID: 0000-0003-0794-8921 AD - Cardiology Service, Department of Medicine, Brooke Army Medical Center, San Antonio, Texas, USA alexandra.j.smith2.mil@health.mil. FAU - Atwood, John E AU - Atwood JE AD - Cardiology Service, Department of Medicine, Walter Reed National Military Medical Center, Bethesda, Maryland, USA. FAU - Pickett, Christopher AU - Pickett C AD - Cardiology Service, Department of Medicine, Brooke Army Medical Center, San Antonio, Texas, USA. LA - eng PT - Journal Article PL - England TA - Open Heart JT - Open heart JID - 101631219 SB - IM MH - Male MH - Female MH - Humans MH - Middle Aged MH - Aged MH - *ST Elevation Myocardial Infarction/diagnostic imaging MH - Retrospective Studies MH - Sensitivity and Specificity MH - Coronary Angiography MH - Coronary Vessels/diagnostic imaging MH - Arrhythmias, Cardiac PMC - PMC9884921 OTO - NOTNLM OT - Acute Coronary Syndrome OT - Chest Pain OT - Coronary Vessels OT - Myocardial Infarction COIS- Competing interests: The view(s) expressed here are those of the author(s) and do not reflect the official policy or position of Brooke Army Medical Center, Walter Reed National Military Medical Center, the US Army Medical Department, the US Army Office of the Surgeon General, the Department of the Army, or the Department of Defense or the US government. EDAT- 2023/01/28 06:00 MHDA- 2023/02/01 06:00 PMCR- 2023/01/26 CRDT- 2023/01/27 20:53 PHST- 2022/07/20 00:00 [received] PHST- 2022/10/13 00:00 [accepted] PHST- 2023/01/27 20:53 [entrez] PHST- 2023/01/28 06:00 [pubmed] PHST- 2023/02/01 06:00 [medline] PHST- 2023/01/26 00:00 [pmc-release] AID - openhrt-2022-002093 [pii] AID - 10.1136/openhrt-2022-002093 [doi] PST - ppublish SO - Open Heart. 2023 Jan;10(1):e002093. doi: 10.1136/openhrt-2022-002093.