Talk:Pleural effusion
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Somebody should explain the difference between exudative and transudative effusions, and also how effusions can be caused by heart failure. AxelBoldt 01:28, 5 Nov 2003 (UTC)
- Added information on Light's Criteria. Zyryab 22:52, 5 February 2006 (UTC)
- In left sided heart failure, heart has trouble pumping out blood, so blood backs up into pulmonary veins. This elevated hydrostatic pressure is also felt in the microscopic vessels of the pleural membranes, which start seeping fluid into the pleural space. Zyryab 22:52, 5 February 2006 (UTC)
