Aims: Infection by SARS-CoV-2 may result in a systemic disease and a proportion of patients ranging 15%-44% experienced cardiac injury (CI) diagnosed by abnormal troponin levels. The aim of the present study was to analyse the clinical characteristics of a large series of hospitalized patients for COVID-19 in order to identify predisposing and/or protective factors of CI and the outcome.
Methods And Results: This is an observational, retrospective study on patients hospitalized in two Italian centres (San Raffaele Hospital and Cremona Hospital) for COVID-19 and at least one high-sensitivity cardiac troponin (hs-cTnt) measurement during hospitalization. CI was defined if at least one hs-cTnt value was above the 99th percentile. The primary end-point was the occurrence of CI during hospitalization. We included 750 patients (median age 67, IQR 56-77 years; 69% males), of whom 46.9% had history of hypertension, 14.7% of chronic coronary disease and 22.3% of chronic kidney disease (CKD). Abnormal troponin levels (median troponin 74, IQR 34-147 ng/l) were detected in 390 patients (52%) during the hospitalization. At multivariable analysis age, CKD, cancer, C-reactive protein (CRP) levels were independently associated with CI. Independent predictors of very high troponin levels were chronic kidney disease and CRP levels. Patients with CI showed higher rate of all-cause mortality (40.0% vs. 9.1%, p = 0.001) compared to those without CI.
Conclusion: This large, multicentre Italian study confirmed the high prevalence of CI and its prognostic role in hospitalized patients with COVID-19, highlighting the leading role of systemic inflammation for the occurrence of CI.
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http://dx.doi.org/10.1111/eci.13703 | DOI Listing |
Cureus
November 2024
Anesthesia and Critical Care, Mohammed VI University Hospital, Tangier, MAR.
Takotsubo cardiomyopathy (TTC), also known as stress-induced cardiomyopathy, is a rare condition in children that causes acute, severe, but often reversible systolic dysfunction of the left ventricle. Physical trauma is a recognized trigger, although distinguishing TTC from myocardial contusion in pediatric trauma cases can be challenging due to overlapping clinical features. We present the case of a six-year-old boy involved in a high-impact motor vehicle collision.
View Article and Find Full Text PDFFront Cardiovasc Med
December 2024
Division of Hematology-Oncology, Department of Medicine, Tufts Medical Center, Boston, MA, United States.
Background: A 63-year-old Black woman presented with progressive exertional dyspnea and chronic lower back pain. The course and findings in her case are instructive.
Case Report: Family history was notable for cardiac deaths.
BMC Cardiovasc Disord
December 2024
Jiangxi University of Chinese Medicine, Jiangxi, China.
Background: Qi Li Qiang Xin (QLQX) capsule has a solid theoretical basis and clinical efficacy in the treatment of chronic heart failure; however, the underlying mechanisms remain obscure. This study was designed to determine the effect of the QLQX on the treatment of heart failure and delineate the underlying mechanisms via a nontargeted metabolomics and lipidomics approach.
Methods: A rat model of heart failure after myocardial infarction (MI) was established via permanent ligation of the anterior descending branch of the left coronary artery.
Spectrochim Acta A Mol Biomol Spectrosc
December 2024
Department of Chemistry, Institut - Courtois, Quebec Center for Advanced Materials (QCAM), and Regroupement Québécois sur les Matériaux de Pointe (RQMP), Université de Montréal, Montréal, Quebec H3C 3J7, Canada.
Myocardial infarction (MI) is the leading cause of death and disability worldwide. It occurs when a thrombus forms after an atherosclerotic plaque bursts, obstructing blood flow to the heart. Prompt and accurate diagnosis is crucial for improving patient survival.
View Article and Find Full Text PDFFront Physiol
December 2024
National Heart and Lung Institute, Imperial College London, London, United Kingdom.
Introduction: Adrenergic activation of protein kinase A (PKA) in cardiac muscle targets the sarcolemma, sarcoplasmic reticulum, and contractile apparatus to increase contractile force and heart rate. In the thin filaments of the contractile apparatus, cardiac troponin I (cTnI) Ser22 and Ser23 in the cardiac-specific N-terminal peptide (NcTnI: residues 1 to 32) are the targets for PKA phosphorylation. Phosphorylation causes a 2-3 fold decrease of affinity of cTn for Ca associated with a higher rate of Ca dissociation from cTnC leading to a faster relaxation rate of the cardiac muscle (lusitropy).
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