ArticleAnnals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc2025
Clinical and Electrocardiographic Characteristics in NSTEMI Patients With Acute Total Occlusion of Culprit Left Circumflex Artery.
Article in Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed.
- Article
- Angiographic prevalence of occlusion myocardial infarction and the limited value of serial troponin in patients with non-ST-segment elevation acute coronary syndrome.Frontiers in cardiovascular medicine · 2026Article
- Reconsidering Electrocardiographic Predictors of Culprit Coronary Artery Occlusion in NSTEMI Patients.Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc · 2025Article
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6 authors.
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Abstract
backgroundComplete blockage of the culprit coronary artery is associated with 30% of NSTEMI (non-ST-segment elevation myocardial infarction) patients. The culprit vessel in the left circumflex artery (LCX) is more prevalent in this subset of individuals. These people's clinical features and ischemia alterations on electrocardiography (ECG) are unknown. The goals of this study were to examine clinical features and identify predicted ECG abnormalities in NSTEMI patients with complete blockage of the culprit LCX.
methodsThis study enrolled 5215 consecutive NSTEMI patients' data. A total of 180 people were diagnosed with acute total occlusion of the culprit artery (ATOCA). Based on the culprit vessel, the patients were classified into three groups:ATOCA in the LAD (n = 46), ATOCA in the RCA (n = 38) and ATOCA in the LCX (n = 96). Furthermore, basic clinical data, ECG alterations, and the occurrence of major adverse cardiac events (MACEs) were gathered and examined.
resultsIn this single-center investigation, we discovered that ATOCA was more prevalent in patients with NSTEMI in the LCX group. Patients with culprit LCX were more prone to having multivessel coronary disease (p = 0.015), poorer LVEF (p = 0.040), and a lower revascularization success rate (p = 0.019) during hospitalization, although there were no significant differences in MACEs in short and long follow-up. STV5 + STV6 ≥ 2.5 mm (OR = 2.595, 95% CI: 1.297 ~ 5.192) and T-wave imbalance (defined as an upright T-wave in V1 with an amplitude larger than V6 (T1-T6 ≥ 1 mm) recorded from the P-R interval)(OR = 3.871, 95% CI: 1.820 ~ 8.231) were shown to be independent predictors of NSTEMI patients with acute complete blockage of the culprit LCX in multivariate regression analysis.
conclusionThe LCX is the most prevalent culprit vessel with acute complete occlusion in NSTEMI patients, yet it has little effect on clinical outcomes. This subset of patients may be predicted by STV5 + STV6 ≥ 2.5 mm and T-wave imbalance.
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