I reread your post and im not trying to say you are wrong but obvious that if his collapse os to close to his heart its risky but the stent wont work to open his up,,, Ill explain it like you have no knowlege of how it works not because you may not know but because its the best way to do it, not trying to make anyone feel ignorant so please dont take it wrong,.. ok lets think of the trachea as a straw, your cosmo and my fife had a weak straw, then eventually the weak part starts to split, now if the break is in the middle of the straw or in the top portion of the straw they can go in and put in a stent,,, think of this as a straw within a straw, so the break or bad part of cosmos treachea doesnt matter anymore. but in the case of my dog anyway his break was to low for the stent to work as the space at the bottom cant be expanded with the stent so its less about his heart and the risk as it just wont work, they make 2 kinds of stents right now for tracheas and neither fix the problem in the bottom portion. I hope this helps explain things a little better. I can say the the first time that fife was diagnosed we went home with cough meds and it was a few months before it bothered him again and many meds before he could get no air in, so maybe you can exlore some different meds,, for sure the ac is best i always kept my house on 67 when it started to get hot. Often a bath would help him or a shower,, I would stand in the shower with him that seemed to calm my fife when he first started with the honking and wheezing |