Kidney stone disease One ureteroscopic technique involves the placement of a ureteral stent (a small tube extending from the bladder, up the ureter and into the kidney) to provide immediate relief of an obstructed kidney. Stent placement can be useful for saving a kidney at risk for postrenal acute renal failure due to the increased hydrostatic pressure, swelling and infection (pyelonephritis and pyonephrosis) caused by an obstructing stone. Ureteral stents vary in length from and most have a shape commonly referred to as a "double-J" or "double pigtail", because of the curl at both ends. They are designed to allow urine to flow
Bladder stone is performed under general anesthesia as an inpatient procedure. The first step is a cystoscopy to examine the bladder, then an incision is made in the lower abdomen. Once the stone is removed, the bladder is repaired with an absorbable stitch, and a catheter is inserted into the bladder via the urethra. Occasionally it is necessary to gently drip fluid in and out of the bladder for a period, as there is often some bleeding following the procedure. The majority of patients do not have major side effects following cystolithotomy, but it may be followed by a minor burning sensation