The Ureteropelvic Junction
is located where the pelvis of the kidney meets the ureter (the tube that drains urine into the bladder).
Pathophysiology of ureteropelvic junction
obstruction: Clinical and experimental observations.
The determined stones distributed in the ureterovesical junction (UVJ), renal pelvis, ureteropelvic junction
(UPJ), upper ureter, lower ureter and midureter in 36.5%, 23%, 16.7%, 11.9%, 7.1% and 4.8% respectively (Table-III).
Computed tomography (CT) abnormalities leading to CT-initiated exclusion from kidney donation in 81 patients n Collecting system 41 Renal calculi 39 Ureteropelvic junction
obstruction 2 due to crossing vessels Renal vasculature 29 Supernumerary arteries and/or early 20 arterial branching Renal arterial aneurysms 2 Renal vein anomalies 2 Atherosclerotic plaque at the renal arterial ostium 1 Duplicated IVC 1 Fibromuscular dysplasia 1 Polyarteritis nodosa 1 Renal arterio-venous malformation 1 Renal parenchyma 9 Autosomal dominant polycystic kidney disease 3 Renal cell carcinoma 2 Renal scarring 2 Complex renal cyst 1 Segmental renal infarction 1 Extra-renal 2 Pulmonary nodule 2 Katerina Mastrocostas (1); Christina M.
Zhong, "Robot-assisted versus laparoscopic pyeloplasty for patients with ureteropelvic junction
obstruction: an updated systematic review and meta-analysis," Scandinavian Journal of Urology, vol.
obstruction (UPJO) has a reported incidence of 1 in 500 live births , more commonly in males than females and more frequently found on the left side.
The typical course of the ureters begins at the ureteropelvic junction
, posterior to the renal vein and artery.
Due to the shortage of organ donors, the use of marginal donors including donors with ureteropelvic junction
obstruction (UPJO) is becoming more prevalent.[sup] An anastomosis of allograft pelvis to native ureter has been reported to be a treatment for donor kidney with UPJO at initial transplantation;[sup] however, few studies focused on the surgical option for urinary tract reconstruction of donor kidney with UPJO in re-transplantation.
Methods: The retrospective study was conducted at Aga Khan University Hospital, Karachi, and comprised records of patients who underwent surgical correction of ureteropelvic junction
obstruction between during January 2008 and December 2012.
* Urinary tract; looking for any history of issues, such as ureterovesical or ureteropelvic junction
obstructions, vesicoureteral reflux, duplicated drainage systems, and bladder function assessment.
Lack of adequate flow of contrast from the renal pelvis to the ureter on imaging studies is diagnostic of an Obstruction of the Ureteropelvic junction
Subsequently, several refined reconstructive techniques such as the laparoscopic pyeloplasty for obstruction of the ureteropelvic junction
(UPJ) have been developed (JARRETT et al., 2002).