Our maltese has a collapsed trachea. Up to now we have managed via medications, but something happened to him. Now it is very hard for him to breathe, and it seems like he is getting very little oxygen. He no longer wants to walk, and has actually collapsed and fallen over. We have seen him have like a mini-collapse, followed by some leg shaking and then urinating and then vomiting. He is currently in a oxygen tent being "revived", but we need to determine if surgery is the right next step, or if there are other alternatives we have not yet tried. He is 9, but so cute and loveable! What do you recommend? And what can you tell us about the surgery success vs. risk?