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A ureteral stent (pronounced you-REE-ter-ul), or ureteric stent, is a thin tube inserted into the ureter to prevent or treat obstruction of the urine flow from the kidney. The length of the stents used in adult patients varies between 24 and 30 cm. Additionally, stents come in differing diameters or gauges, to fit different size ureters.
The tube in (A) and the pigtail in (B) are marked with white arrows. [ 1 ] A nephrostomy or percutaneous nephrostomy is an artificial opening created between the kidney and the skin which allows for the urinary diversion directly from the upper part of the urinary system ( renal pelvis ). [ 2 ]
Obstruction occurring in the lower urinary tract can also cause this increased pressure through the reflux of urine into the kidney. Common causes include bladder dysfunction (such as neurogenic bladder) and urethral obstruction (such as posterior urethral valves in male infants) or compression (such as from benign prostatic hyperplasia in ...
Brickers bladder (also called Ileal conduit) problems. Up to 10% of patients who undergo ileal conduit urinary diversion may go on to develop ureteroileal anastomotic stenosis. [2] This can lead to obstructive symptoms as side pain, infection and finally deterioration in renal function which can be relieved by the treatment with this balloon ...
Causes include blockage of the urethra, nerve problems, certain medications, and weak bladder muscles. [1] Blockage can be caused by benign prostatic hyperplasia (BPH), urethral strictures, bladder stones, a cystocele, constipation, or tumors. [1] Nerve problems can occur from diabetes, trauma, spinal cord problems, stroke, or heavy metal ...
Urinary tract obstruction is a urologic disease consisting of a decrease in the free passage of urine through one or both ureters and/or the urethra. It is a cause of urinary retention . Complete obstruction of the urinary tract requires prompt treatment for renal preservation. [ 1 ]
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Ureter cancer rarely causes problems in the early stages, but as the cancer progresses, there are often side effects. [5] Symptoms of ureteral cancer may include "blood in the urine (); diminished urine stream and straining to void (caused by urethral stricture); frequent urination and increased nighttime urination (); hardening of tissue in the perineum, labia, or penis; itching; incontinence ...