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Aims: Infective endocarditis (IE) is associated with high mortality and morbidity. Cardiac troponin (Tn) elevation seems to be common in patients with IE and could be associated with a poor prognosis. The aim of this study was to synthesize the prognostic value of Tn in patients with IE.
Methods And Results: We searched in MEDLINE, EMBASE, and the Cochrane library, including the Cochrane Central Register of Controlled Trials (CENTRAL) until February 2020. Observational studies reporting on the association between Tn and in-hospital and 1-year mortality, and IE complications were considered eligible. As each centre uses different conventional or ultra-sensitive Tn, with different normality threshold, we considered them as normal or elevated according to the criteria specified in each article. Articles were systematically selected, assessed for bias, and, when possible, meta-analysed using a random effect model. After retrieving 542 articles, 18 were included for qualitative synthesis and 9 for quantitative meta-analysis. Compared with patients with normal Tn levels, patients with Tn elevation presented higher in-hospital mortality [odds ratio (OR) 5.96, 95% confidence interval (CI) 3.46-10.26; P < 0.0001], 1-year mortality (OR 2.67, 95% CI 1.42-5.02; P = 0.002), and surgery rates (OR 2.34, 95% CI 1.42-3.85; P = 0.0008). They also suffered more frequent complications: central nervous system events (OR 8.85, 95% CI 3.23-24.26; P < 0.0001) and cardiac abscesses (OR 4.96, 95% CI 1.94-12.70; P = 0.0008).
Conclusion: Tn elevation is associated with a poor prognosis in patients with IE. Troponin determination seems to provide additional help in the prognostic assessment of these patients.
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http://dx.doi.org/10.1093/ehjacc/zuab008 | DOI Listing |
Eur Heart J
September 2025
Cardiovascular and Genomics Research Institute, St. George's, University of London, Cranmer Terrace, London SW17 0RE, UK.
Myocardial infarction (MI) is defined pathologically as myocardial cell death resulting from prolonged ischaemia. The clinical definition of this pathological process relies on clinical evidence of myocardial ischaemia and biomarker evidence of myocardial cell death. Cardiac troponins are the standard clinical biomarker for assessing cardiac cell death.
View Article and Find Full Text PDFAllergol Immunopathol (Madr)
September 2025
Department of Pediatrics, Ankang Hospital of Traditional Chinese Medicine, Ankang, China;
Allergic asthma is an inflammatory airway disease influenced by genetic and environmental factors and orchestrated by imbalance between T helper 1 cell (Th1) and two immune responses. Inflammation contributes to pathological changes and remodeling in tissues such as the vascular, lung, heart, and beds. The purpose for this study was to evaluate the effects of allergic asthma on heart pathology and remodeling.
View Article and Find Full Text PDFCureus
August 2025
Emergency Medicine, Stockport NHS Foundation Trust, Stockport, GBR.
Kounis syndrome, also known as allergic myocardial infarction, is a rare but potentially life-threatening condition in which acute coronary events are triggered by an allergic reaction. The pathophysiology involves mast cell degranulation and the release of inflammatory mediators such as histamine, leukotrienes, and platelet-activating factor, leading to coronary vasospasm, myocardial ischemia, or infarction. We present the case of a female patient in her 80s with no prior history of coronary artery disease who developed anaphylaxis shortly after intravenous administration of co-amoxiclav in the emergency department.
View Article and Find Full Text PDFOpen Heart
September 2025
Department of Cardiology, Angiology and Internal Intensive Care Medicine, RWTH Aachen University, Aachen, Germany.
Background: Acute myocarditis is a potentially life-threatening cardiac condition and immediate assessment of this disease is imminent. While laboratory tests, electrocardiography or transthoracic echocardiography can provide indirect signs for the presence of acute myocarditis, cardiac magnetic resonance (CMR) imaging enables direct visualisation of myocardial inflammation and confirms the diagnosis.Since there is limited accessibility to CMR, the goal of this study was to evaluate the sensitivity and specificity of an elevation of established biomarkers for the diagnosis of myocarditis and to define a specific rule-out threshold for deferring CMR.
View Article and Find Full Text PDFBackground: At present, existing risk scores together with traditional biomarkers such as troponin and brain natriuretic peptide (BNP) are still unable to accurately predict cancer therapy-related cardiac dysfunction (CTRCD). MicroRNAs (miRNAs) have emerged as promising biomarkers for improved identification of high-risk patients; however, limited studies have been performed in patients with HER2-positive breast cancer.
Objectives: To investigate the predictive potential of six serum-derived circulating miRNAs for CTRCD occurrence in patients with early-stage HER2-positive breast cancer receiving trastuzumab (TTZ).