alexa Ureteral Obstruction | Singapore | PDF | PPT| Case Reports | Symptoms | Treatment

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Ureteral Obstruction

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  • Ureteral Obstruction

     Pathophysiology

    Ureteral Obstruction is structural or functional hindrance of normal urine flow, sometimes leading to renal dysfunction (obstructive nephropathy). Ureteral obstruction can be classified as intraluminal or extraluminal. Intraluminal causes include kidney stones, blood clots and scarring; these conditions usually cause unilateral obstruction and Extraluminal causes include several conditions related to enlarged masses that place pressure on the ureter and create obstructions.

  • Ureteral Obstruction

     Disease statistics

    In Singapore, about 4% of young adult females are affected. The incidence rises with age to 7% at 50 years.

  • Ureteral Obstruction

     Disease treatment

    Stents or drains placed in the ureter or in a part of the kidney called the renal pelvis may provide short-term relief of symptoms. Long-term relief from obstructive uropathy requires surgery. A Foley catheter, placed through the urethra into the bladder, may also be helpful.

  • Ureteral Obstruction

     Major research

    Recently, it has been suggested that duplex renal Doppler US, primarily when used for determining the resistive index, be used to help discriminate between obstructive and nonobstructive causes of renal collecting system dilatation. Partial obstruction may not result in an elevated resistive index, and the use of nonsteroidal antiinflammatory drugs for pain control or an antecedent IVU may alter the resistive index.

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