Ureteropelvic junction (UPJ) obstruction is a blockage in the renal pelvis of your kidney, causing pee to slow or stop completely. Treatment may include surgery.

UPJ obstruction occurs most often in children and prevents the proper flow of urine, thereby threatening the integrity of the kidney. UPJ obstruction can also occur in adults. In children, UPJ obstruction is often present at birth and may be due to narrowing of the proximal ureter or the presence of an abnormal blood vessel over the ureter.

If left untreated, a UPJ kidney stone can impede the flow of urine and cause urine build-up and swelling (hydronephrosis) in the kidney. If left untreated this can eventually lead to kidney damage. Most stones that get stuck at UPJ are 5 mm and larger. It is rare for stones smaller than 5 mm to block the UPJ.

Ureteropelvic junction (UPJ) obstruction is a blockage in the area that connects the renal pelvis (part of the kidney) to one of the tubes (ureters) that move urine to the bladder. It generally …

The term ureteropelvic junction (UPJ) obstruction describes a blockage to this area. The obstruction impedes the flow of urine down to the bladder, causing the urine to back up in the kidney and dilate it (hydronephrosis).

Ureteropelvic junction obstruction refers to a blockage at the point where the kidney meets the ureter, which impairs the flow of urine. This article will explore the condition’s risk factors, symptoms, diagnostic tests, medications, procedures, and home management strategies.

2023年7月10日 · Ureteropelvic junction obstruction (UPJO) is a well-recognized clinical entity that results in impaired urine flow from the renal pelvis into the ureter and, if not detected and treated properly, can result in complete loss of the affected kidney.

ESWL is the first choice of treatment for UPJ stones that are 4 mm – 5 mm in diameter. Shockwave lithotripsy has fewer complications than ureteroscopy and has similar success rates up to 90% for small UPJ stones.

Ureteropelvic junction (UPJ) obstruction is a partial or total blockage at the place where the organ that produces urine (the kidney) and the tube that carries it to the bladder (the ureter) are joined.

Ureteropelvic junction (UPJ) obstruction occurs when the area connecting the renal pelvis (part of the kidney) to one of two tubes that connect with the bladder (ureter) becomes blocked, causing urine to build up, which damages the kidneys.