PATHOPHYSIOLOGICAL BASIS OF HEART FAILURE AND HEMODYNAMIC CHANGES

This scientific work focuses on the pathophysiological mechanisms and hemodynamic alterations associated with heart failure, a leading cause of morbidity and mortality worldwide. Heart failure is a complex clinical syndrome resulting from the heart’s inability to pump sufficient blood to meet the body’s metabolic needs. The study explores the underlying causes such as myocardial dysfunction, neurohormonal activation, and compensatory responses that contribute to disease progression. Special attention is given to hemodynamic changes, including decreased cardiac output, increased preload and afterload, and fluid overload, which are central to clinical symptoms like dyspnea, fatigue, and edema. The paper also highlights the role of compensatory mechanisms like sympathetic nervous system and renin-angiotensin-aldosterone system activation, and their long-term harmful effects such as ventricular remodeling and fibrosis. This work provides valuable insights for medical students, clinicians, and researchers by offering a detailed overview of diagnostic approaches and therapeutic interventions aimed at managing heart failure and improving patient outcomes. Understanding these physiological changes is essential for timely diagnosis, effective treatment, and preventing disease progression.