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Swimming induces a physiological cardioprotection associated with pro-growth anti-inflammatory influences in extra-cardiac organs.
Am J Physiol Regul Integr Comp Physiol
December 2024
Curtin University, Curtin Medical Research Institute (Bentley, WA, AUSTRALIA).
Physical activity improves myocardial structure, function and resilience via complex, incompletely defined mechanisms. We explored effects of 1-2 wks swim training on cardiac and systemic phenotype in young male C57Bl/6 mice. Two wks forced swimming (90 min twice daily) resulted in cardiac hypertrophy (22% increase in heart:body weight, P<0.
View Article and Find Full Text PDFThe complex role of cardiovascular imaging in viability testing.
Prog Cardiovasc Dis
January 2025
Division of Cardiovascular Medicine, Department of Medicine, University of Virginia, Charlottesville, Virginia, USA. Electronic address:
Myocardial viability assessment is used to determine if chronically dysfunctional myocardium may benefit from coronary revascularization. Cardiac magnetic resonance with late gadolinium enhancement is the current gold standard for visualizing myocardial scar and provides valuable insight into myocardial viability. Viability assessments can also be made with Cardiac Positron Emission Tomography, Echocardiography, Single Photon Emission Tomography, and Cardiac Computed Tomography with each having advantages and disadvantages.
View Article and Find Full Text PDFBackground: Annually, approximately 7.6 million individuals experience a new ischemic stroke, and roughly 25% of all ischemic strokes are cardiogenic in origin, carrying a high risk of recurrence, death and disability. To prevent future ischemic strokes, especially in younger individuals, it is crucial to detect and treat direct and indirect cardioembolic sources.
View Article and Find Full Text PDFHemodynamic Characteristics and Prognostic Implication of Modified Society for Cardiovascular Angiography and Interventions Shock Classification in Comatose Patients With Out-of-Hospital Cardiac Arrest.
J Am Heart Assoc
January 2025
Department of Cardiology Odense University Hospital Odense Denmark.
Background: Cardiogenic shock complicating acute myocardial infarction is associated with a high mortality rate. Cardiogenic shock after out-of-hospital cardiac arrest (OHCA) can be due to transient myocardial stunning but also reflect the increasing severity of ongoing heart failure. The Society for Cardiovascular Angiography and Interventions (SCAI) proposed a division of cardiogenic shock into 5 phenotypes, with cardiac arrest being a modifier.
View Article and Find Full Text PDFThe Relationship Between the Type of ST-Segment Elevation in Acute Anterior Wall Myocardial Infarction and Left Ventricular Ejection Function.
Cureus
November 2024
Internal Medicine Department, Shalamar Hospital, Lahore, PAK.
Introduction: Acute anterior wall myocardial infarction (AWMI), when presenting with ST-segment elevation on an electrocardiogram (ECG), represents a form of ST-elevation myocardial infarction (STEMI) caused by a significant reduction in coronary blood flow to the heart muscle. The shape of the ST-segment elevation, whether it is concave, convex, or straight, has been associated with different levels of left ventricular ejection fraction (LVEF), which is an important indicator of cardiac function and prognosis.
Objective: To investigate the relationship between the type of ST-segment elevation on ECG and LVEF measured 48 hours after the onset of myocardial infarction in patients with AWMI.
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