@miriam98 - I’m surprised to read that some patients with kidneys stones have urethral stents. I thought in those cases they just waited for the kidney stones to be flushed from the body. But I guess if they are stopping the flow of urine then these stents would be a necessity.
Based on what I’ve read about the difficulties with heart stents, I think patients with temporary urethral stents would be better off. The problem with all of these stents is that the body treats them as foreign objects and then tries to work its way around it or throw its attack mechanisms on it.
Personally, I believe that doctors need to come up with biological implants, kind of like synthetic stents made of cells, that will cooperate with the body’s mechanisms. That way they won’t be treated as foreign cells and can be permanently assimilated into the body.