Long term ureteral stents are commonly changed every 3 to 6 months. This is a procedure performed by a urologist. This is done to prevent the build up of scale and calcium on the stents that may cause further blockage of the kidneys. I am unable to predict the result of stent change. In this case, the only thing that can be done is to change the stents regularly and monitor the kidney function to make sure the blockage does not recur.
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