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Old 10-13-2011
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Stethoscope why pericardial rub is relieved by sitting forward?

why pericardial rub is relieved by sitting forward? I thought by sitting forward your heart will press against chest wall and make the rub worse. Where was I wrong?
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Old 10-13-2011
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I always thought by leaning forward you enhance the heart sound since leaning forward you increase venous return so increase Left vent preload. So I think it may make it worse. Where did you see this info about it causing relief?
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Old 10-15-2011
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Pericardial friction rub is not relieved by sitting forward, on the contrary, it increases when you lean forward. This is because you increase the contact area between visceral and parietal area when you lean forward.

On the other hand, pericarditis pain is typically quoted as being relieved when the patient leans forward this is because the pressure on the parietal pericardium (the sensitive pericardium) has more space to to dangle free and it's movement becomes less because of the splinted diaphragm in that position.
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Cardiovascular-, Clinical-Signs, Pathology-, Physiology-

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