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Infective Endocarditis (Acute)

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Overview


Plain-Language Overview

Infective Endocarditis (Acute) is a serious infection that affects the heart valves and the inner lining of the heart. It is caused by bacteria or other germs entering the bloodstream and attaching to damaged areas of the heart. This infection can cause fever, fatigue, and damage to the heart valves, which may lead to heart failure if untreated. The infection can also send small clumps of bacteria and cells called emboli to other parts of the body, causing complications like stroke or organ damage. Early recognition and treatment are important to prevent serious health problems.

Clinical Definition

Infective Endocarditis (Acute) is an infection characterized by the rapid onset of inflammation of the endocardium, primarily involving the heart valves. It is most commonly caused by highly virulent organisms such as Staphylococcus aureus that adhere to previously normal or damaged valves, leading to the formation of large, friable vegetations composed of bacteria, fibrin, and inflammatory cells. This condition results in valvular destruction, systemic embolization, and a severe systemic inflammatory response. Acute IE typically presents with high fever, chills, and signs of sepsis, and it progresses rapidly without prompt antimicrobial therapy. The disease is a medical emergency due to its potential for causing heart failure, septic emboli, and death.

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Differential Diagnoses