Ureteropelvic junction (UPJ) obstruction is a blockage in the renal pelvis of your kidney. Each of your kidneys has a renal pelvis. The renal pelvis is located at the upper end of each tube that drains pee from your kidneys to your bladder (ureter). The renal pelvis has a funnel-like shape, and it collects pee.

2025年3月3日 · Ureteropelvic junction (UPJ) obstruction or pelviureteric junction (PUJ) obstruction partially obstructs the passage of urine from the renal pelvis to the ureter. It is the most frequent cause of hydronephrosis in the fetus and can also present in adulthood.

The point where your kidney’s renal pelvis and ureter meet is known as the ureteropelvic junction (UPJ). Obstruction in this area can lead to complications, such as pain, infection and kidney damage. Pyeloplasty is one way healthcare providers manage the problem. Who needs pyeloplasty? About 1 in 1,500 people are born with a UPJ obstruction.

What Is UPJ Obstruction? 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.

The ureteropelvic junction (UPJ) is the area where the upper end of the ureter meets the renal pelvis (the part of the kidney that funnels urine into the ureter). This is the second most common area for stones to get stuck and cause symptoms because it is …

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. Shockwave is a less invasive procedure than ureteroscopy.

A ureteropelvic junction obstruction (UPJO) is a blockage of urine flow from the renal pelvis to the ureter. The renal pelvis is the part of the kidney that collects the urine made by the kidney and the ureter is the tube that carries the urine from the renal pelvis to the bladder (see figure 1).

2006年8月24日 · 輸尿管 (ureteral stone) ─ 可分為上、中、下三段, 必須註明左右邊。 4. 輸尿管膀胱間 (UVJ stone) 5. 膀胱 (vesical stone) 6. 尿道 (urethral stone) B. 大小 (stone burden)：X-光片上最大直徑或所有結石直徑之和。 C. 合併症之有無：包括血尿, 疼痛, 感染或敗血症 (urosepsis), 阻塞 (obstruction), 腎水腫 (hydronephrosis), 腎功能損傷, 甚至惡性腫瘤之可能性。

Ureteropelvic junction obstruction (UPJO), or pelviureteric junction obstruction, is defined as a blockage or obstruction of urine flow from the kidney into the proximal upper ureter. This obstruction can lead to an increase in back-pressure on the kidney, hydronephrosis, and progressive. damage to the kidney function.

本文选取2022版EAU指南中涉及小儿上尿路扩张疾病，肾盂输尿管连接部（ureteropelvic junction，UPJ）与输尿管膀胱连接处（ureterovesical junction，UVJ）梗阻，与后尿道瓣膜疾病治疗的更新内容及其临床意义进行介绍和解读。