Endometriosis is the leading cause of female pelvic pain and infertility and affects approximately 10% of women. Lesions involve the urinary tract in up to 6% of cases with ureteral involvement in a smaller subset of .08% to 1%. Multiple authors describe open and laparoscopic approaches to management of ureteral endometriosis; however, this report describes 2 cases of ureteral obstruction secon...

background the most important surgical complications of renal transplantation are stenosis and obstruction of anastomosis of the ureter to the bladder. hence, routine use of ureteral stents to prevent such complications seems logical; however, the optimal time to remove the ureteral stent is still controversial. objectives the purpose of this study was to compare the benefits and complications ...

Key points  Ureteral obstruction secondary to urolithiasis is the most common indication for ureteral surgery in dogs and cats.  The number of ureteroliths, the integrity of the ureteral wall, infection, and the presence or absence of concurrent nephrolithiasis, will often dictate the treatment that is performed.  Prospective studies comparing traditional surgery to the novel technique of st...

Obstrution of the urinary tract is a potential cause of renal failure. Acute unilateral obstruction of the kidney is associated with an increase in pelvic pressure followed by a decrease in ipsilateral renal blood flow (1). Concomitantly with these pressure changes the synthesis of renal vasoactive hormones is changed. There are different opinions about the effects of prostaglandins (PGs) on re...

BACKGROUND Heparin exerts beneficial effects in different experimental models of nephropathy, as observed by the preservation of the structural morphology of the kidney after heparin therapy. Here we investigate molecular and cellular events involved in the protective effects of heparin in the progression of renal disease after unilateral ureteral obstruction. METHODS Thirty-six rats were div...

A canine model with partial ureteral obstruction and progressive hydroureteronephrosis was utilized to validate and compare the accuracy of several diagnostic methods currently used to assess urinary tract obstruction. Tests of renal function and measurements of intrapelvic pressure were not helpful in following the progress of hydroureteronephrosis but did provide insight into the mechanisms b...

The kinetics for mesangial uptake and transport of radiolabeled aggregated human immunoglobulin (Ig)G (AHIgG(125)I) deviated markedly from normal in male Sprague-Dawley rats with ureteral obstruction. Four experimental groups, each containing 25 rats, were used: (a) bilateral ureteral ligation (BUL) with release of one ureter 24 h later; (b) unilateral ureteral ligation with release 24 h later ...

Background: Gonadal vein thrombosis (GVT) has been reported in association with malignancy and pelvic inflammatory conditions. Patients who develop GVT often require systemic anticoagulation to reduce the risk of pulmonary embolism and other local and distant thromboembolic effects. As the gonadal vein courses from the pelvis toward its outlet in the upper abdomen, its intimate relationship to ...