my brother has 3 clogged arteries from right side of the heart. One-closed for 85%, second-for 75% and third for 100%. He has been advise to do three bypasses, but CHARITE (Germany) made us offer to do coronary angioplasy, Drug eluting stents in LAD+cx. My question is : Is it possible to put stents on 100% closed arteries? Thanks.