My wife had a stent because she had a lot of problems with stomach pain after six months of testing and guessing about the cause of her pains they hit at the root of pain,all this time she was in and out of Kaiser hospital five or six times. My question is how long is this going to stay put? Because now its been one year ago and I worried about the "stent" breaking down or just becoming useless.Thank you for allowing me to post this,John Esparza