Ultrasound Video showing ureteral stenosis at ureterovesical junction. скачать в хорошем качестве

Ultrasound Video showing ureteral stenosis at ureterovesical junction.

This video shows Ureteral stenosis at ureterovesical junction. A ureteral stricture is a narrowing of the ureter that causes an obstruction in the flow of urine. This narrowing causes an obstruction in the flow of urine. It can also be caused by kidney stones, upper urinary tract inflammation, or a tumor. Ureteral obstruction can be curable. However, if it's not treated, symptoms can quickly move from mild — pain, fever, and infection — to severe — loss of kidney function, sepsis, and death. The most common form of ureteral stricture is ureteropelvic junction (UPJ) obstruction, which is a congenital or acquired narrowing at the level of the UPJ. Ureterovesical junction (UVJ) obstruction refers to a blockage to this area. The obstruction impedes the flow of urine down to the bladder, causing the urine to back up into and dilate the ureters and kidney (megaureter and hydronephrosis). Because BPH is so common in older men, obstruction is more common among men. Other common causes of obstruction include strictures (narrowing caused by scar tissue) of the ureter or urethra that develop after radiation therapy, surgery, or procedures done on the urinary tract. Stones that block the ureter or any of the kidney's drainage tubes may cause symptoms that include: Severe, intermittent (comes and goes) pain in the upper flank (in the back, under the lower ribs) that can radiate (spread) to the lower abdomen, and; Nausea and vomiting. The most common cause for this blockage is a kidney stone, but scarring and blood clots can also cause acute unilateral obstructive uropathy. A blocked ureter can cause urine to go back up into the kidney, which causes swelling, tumors in or near the ureter, narrowing of the ureter from an injury or birth defect. Kidneys make urine, so when the kidneys are failing, the urine may change. The patient may urinate less often, or in smaller amounts than usual, with dark-colored urine. Urine may contain blood. Treatment for ureteral stricture may include surgical implantation of a stent to open the narrowed section of the ureter or minimally invasive robotic surgery to reconstruct the urinary tract. The goal is to fix the stricture permanently and avoid the long term use of stents, whenever possible.