Dissolving stent for heart arteries passes first large test
![Dissolving stent for heart arteries passes first large test](http://bloximages.chicago2.vip.townnews.com/tdn.com/content/tncms/assets/v3/editorial/b/f9/bf9c155b-c24e-58e7-b8b1-b3aa528b82ec/561c11a23a578.image.jpg?resize=300%2C206)
Now you see it, now you don't. A new type of heart stent that works like dissolving stitches, slowly going away after it has done its job, passed its first major test in a large study, doctors…