Tropical Endomyocardial Fibrosis (EMF)
snrunken ventnoes
Hallmark chronic EMF features include:
• Apical obliteration of the left and/or right ventricles with fibrous tissue deposition, seen as a 3-layered delayed enhancement pattern of normal myocardium, thickened enhanced endomyocardium with overlying thrombus in cardiac MR (double V sign).
• Restrictive physiology with shrunken ventricles and marked atria enlargement secondary to fibrosis of the chordae tendineae and papillary muscles leading to mitral and/
Pathogenesis Theories
• No clear consensus
• Eosinophilia may play a role
• Parasitic disease may act as trigger of autoimmunity
• Linked to malnutrition and environmental factors
• Genetic susceptibility
Acute Phase
• Acute febrile illness with nonspecific symptoms
• Signs of pancarditis with myocardial edema
• Thromboembolic events may occur
• Subset evolves into chronic phase
Chronic Phase
• Restrictive heart failure symptoms
• Hallmark features seen on cardiac MR
• Hepatosplenomegaly and disproportional ascites
• Poor prognosis
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