||A rubbing sound due to the friction of visceral and parietal pericard layers.|
|Findings on Examination
||The rubbing may occupy all of systole an diastole. It is intense, grating, machine-like sound; which may have 3 components and obliterate heart sounds. If it has only 1 or 2 components, it may sound like murmur.|
|Normal Heart Sound (441K)|
compiled by Dr R S MacWalter, Consultant Physician, Tayside Universtiy Hospitals Hospitals NHS Trust, Honorary Senior Lecutrer, University of Dundee, Ninewells Hospital & Medical School, Dundee, Scotland, Duncan MacWalter and Gordon MacWalter.