Overview of pericardial disease
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Pericardial disease affects the pericardium, which is the flexible two-layered sac that envelops the heart.
The pericardium helps keep the heart in position, helps prevent the heart from overfilling with blood, and helps protect the heart from being damaged by chest infections. However, the pericardium is not essential to life. If the pericardium is removed, there is little measurable effect on the heart
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