Chronic pericarditis with effusion can present with distinct clinical features resembling mitral stenosis and may progress to constrictive pericarditis.
May prompt consideration in mitral stenosis differentials; case reports leave diagnostic utility and progression risk open.
Pericarditis with effusion is sometimes a chronic disease, an exception to the general rule that it is acute rather than chronic. Illustrative cases are described. Features of interest are the prominent third heart sound, the large P waves, the thrombi in the right atrium, the progression to constrictive pericarditis, and the resemblance in several respects to mitral stenosis.
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Barker et al. (1950) studied this question.
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