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Topic Review
New-Onset Atrial Fibrillation in Severe COVID-19 Patients
New-onset atrial fibrillation (NOAF) is the most frequently encountered cardiac arrhythmia observed in patients with COVID-19 infection, particularly in Intensive Care Unit (ICU) patients. The proposed mechanisms that could contribute to the development of Atrial fibrillation (AF) in these patients include myocardial damage resulting from direct virus-induced cardiac injury, potentially leading to perimyocarditis; a cytokine crisis and heightened inflammatory response; hypoxemia due to acute respiratory distress; disturbances in acid-base and electrolyte levels; as well as the frequent use of adrenergic drugs in critically ill patients.
  • 386
  • 21 Nov 2023
Topic Review
Heart Transplantation
Heart transplantation (HTx) remains the last therapeutic resort for patients with advanced heart failure. Several factors have been associated with the outcome of HTx, such as ABO and HLA compatibility, graft size, ischemic time, age, infections, and the cause of death, as well as imaging and laboratory tests. 
  • 380
  • 07 Feb 2024
Topic Review
Transcriptomic Analysis in Heart Failure
Heart failure constitutes a clinical complex syndrome with different symptomatic characteristics depending on age, sex, race and ethnicity, among others, which has become a major public health issue with an increasing prevalence. One of the most interesting tools seeking to improve prevention, diagnosis, treatment and prognosis of this pathology has focused on finding new molecular biomarkers since heart failure relies on deficient cardiac homeostasis, which is regulated by a strict gene expression. Therefore, currently, analyses of non-coding RNA transcriptomics have been oriented towards human samples. 
  • 377
  • 13 Oct 2023
Topic Review
Conduction Abnormalities Post Transcatheter Aortic Valve Implantation
Transcatheter aortic valve implantation (TAVI) is an established alternative to surgery in patients with symptomatic severe aortic stenosis and has expanded its indications to even low-surgical-risk patients. Conduction abnormalities (CA) and permanent pacemaker (PPM) implantations remain a relatively common finding post TAVI due to the close proximity of the conduction system to the aortic root. New onset left bundle branch block (LBBB) and high-grade atrioventricular block are the most commonly reported CA post TAVI. The overall rate of PPM implantation post TAVI varies and is related to pre- and intra-procedural factors. Therefore, when screening patients for TAVI, Heart Teams should take under consideration the various anatomical, pathophysiological and procedural conditions that predispose to CA and PPM requirement after the procedure. This is particularly important as TAVI is being offered to younger patients with longer life-expectancy. 
  • 372
  • 30 Nov 2023
Topic Review
Cardiovascular Computed Tomography in Cardiovascular Disease Diagnosis
The recent emergence of photon-counting computed tomography (CT) has further enhanced CT performance in clinical applications, providing improved spatial and contrast resolution. CT-derived fractional flow reserve is superior to standard CT-based anatomical assessment for the detection of lesion-specific myocardial ischemia. CT-derived 3D-printed patient-specific models are also superior to standard CT, offering advantages in terms of educational value, surgical planning, and the simulation of cardiovascular disease treatment, as well as enhancing doctor–patient communication. Three-dimensional visualization tools including virtual reality, augmented reality, and mixed reality are further advancing the clinical value of cardiovascular CT in cardiovascular disease.
  • 369
  • 24 Jan 2024
Topic Review
Cardiovascular Magnetic Resonance-Based Techniques
Cardiac magnetic resonance (CMR) imaging has an important emerging role in the evaluation and management of patients with cardiomyopathies, especially in patients with dilated cardiomyopathy (DCM). It allows a non-invasive characterization of myocardial tissue, thus assisting early diagnosis and precise phenotyping of the different cardiomyopathies, which is an essential step for early and individualized treatment of patients.
  • 361
  • 27 Feb 2024
Topic Review
Laboratory Considerations for High-Sensitivity Cardiac Troponin
High-sensitivity cardiac troponin (hs-cTn) assays have revolutionized the assessment of myocardial stress and injury due to their superior sensitivity and accuracy in detecting even minor cardiac damage. However, hs-cTn is often included in the initial blood draw for baseline assessment in such patients and has prognostic value in predicting in-hospital and long-term mortality.
  • 355
  • 02 Jan 2024
Topic Review
Possible Molecular Mechanisms of Hypertension in SAS
Intermittent hypoxia (IH) is a central characteristic of sleep apnea syndrome (SAS), and it subjects cells in the body to repetitive apnea, chronic hypoxia, oxygen desaturation, and hypercapnia. Since SAS is linked to various serious cardiovascular complications, especially hypertension, many studies have been conducted to elucidate the mechanism of hypertension induced by SAS/IH. Hypertension in SAS is associated with numerous cardiovascular disorders. As hypertension is the most common complication of SAS, cell and animal models to study SAS/IH have developed and provided lots of hints for elucidating the molecular mechanisms of hypertension induced by IH. However, the detailed mechanisms are obscure and under investigation.
  • 348
  • 01 Feb 2024
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