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Stop the Bleeding

Sep 26, 2014
Exercise-induced pulmonary hemorrhage (EIPH), or bleeding in the lungs, can conjure up some pretty unpleasant images of horses drowning in their own blood. But the vast majority of horses with EIPH never appear to suffer any consequences of the condition.
 
Some EIPH horses’ bleeding can be severe, however, and some researchers have found evidence to suggest the condition can lead to permanent lung damage. The only known treatment—furosemide—is a subject of great controversy that most racing and sport governing bodies outside the Americas ban. 
 
For these reasons, several research groups worldwide have focused their studies on EIPH. Their work might lead us to a better understanding of the condition, possible causes and risk factors, improved diagnostic methods, and maybe even other effective treatments.
 
The Mechanisms of EIPH
 
A horse’s lungs are made up of thousands of balloonlike pockets called alveoli. Tiny tubes within the lungs channel inhaled air into these alveoli, which manage gas exchange to the bloodstream like a delivery and pickup service in the healthy lung. They deliver the new gas—oxygen—and pick up the used gas—carbon dioxide—and send that out of the horse via the tube network. 
 
Source: TheHorse