Human heart valve diseases have become an important topic in cardiovascular pathology and medicine. These diseases have different etiologies and manifestations. However, the most common ones including calcific aortic stenosis have histopathological features that are best characterized as a "response to tissue injury" similar to ones seen in numerous tissues and organs. The valve interstitial cell is the prevalent cell type in the valve and is likely the master cell which ultimately regulates cell and molecular repair processes within the valve that involve autocrine and paracrine processes as well as interactions with the matrix components of the valve. This presentation explores the concept of "response to tissue injury" in understanding the pathogenesis of calcific aortic stenosis.
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http://dx.doi.org/10.1016/j.carpath.2010.09.008 | DOI Listing |
N Engl J Med
January 2025
From the Department of Cardiology and the Center for Population Health Innovation, University Heart and Vascular Center Hamburg, University Medical Center Hamburg-Eppendorf, and German Center for Cardiovascular Research (DZHK) Partner Site Hamburg-Kiel-Lübeck - both in Hamburg, Germany.
Am J Physiol Heart Circ Physiol
January 2025
Weatherhead P.E.T. Imaging Center, McGovern Medical School at UTHealth, Houston, Texas, USA.
An increasing number of procedures over the past two decades for aortic stenosis (AS) reflects the combination of an aging population and less invasive transcatheter options. As a result, the hemodynamics of the aortic valve (AV) have gained renewed interest to understand its behavior and to optimize patient selection. We studied the hemodynamic relationship between pressure loss (ΔP) and transvalvular flow (Q) of the normal AV as well as the impact of a variable supravalvular stenosis.
View Article and Find Full Text PDFPost-operative new-onset atrial fibrillation (POAF) is a possible complication following cardiac surgery. Digoxin is a drug with positive inotropic and negative chronotropic effects and is listed among antiarrhythmic drugs that can be prescribed in dogs with atrial fibrillation. This report aims at describing the use of digoxin in two dogs with persistent POAF after mitral valve repair.
View Article and Find Full Text PDFTunis Med
January 2025
University of Tunis El Manar, Faculty of Medicine of Tunis, Department of Cardiology, Security forces hospital, La Marsa, Tunisia.
Unlabelled: Introduction Acute heart failure (AHF) is a life-threatening condition that requires swift diagnosis and tailored management to enhance patient outcomes. In the pursuit of more precise prognostic indicators, Tricuspid Annular Plane Systolic Excursion (TAPSE) and Pulmonary Arterial Systolic Pressure (PASP) have emerged as potential significant advancements. The TAPSE/PASP ratio, a novel parameter, has recently gained attention as a promising predictor of outcomes in acute heart failure.
View Article and Find Full Text PDFEur Heart J Cardiovasc Imaging
January 2025
Karl Landsteiner University of Health Sciences, Krems, Austria.
Aims: Less pronounced calcification of the aortic valve (AVC) was observed in women with aortic stenosis (AS) as compared to men. Since women have smaller aortic valves (AV), this could explain a lower calcium load. We aimed to analyze the association of AV size with AVC independent from sex.
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