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Query: UMLS:C0403608 (ureter)
 9,655 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Twenty nine children under 2 years old with congenital hydronephrosis have been treated in the last 14 years in our department. We report 4 cases which we found difficult to diagnose and treat. The diagnosis and the treatment of congenital hydronephrosis in children are discussed, especially concerning those patients under the age of 2 years. Pyeloplasty has been performed in 28 renal units out of 35 renal units. The results of the procedure were good in 82.1%, fair in 10.7%, no change in 3.6% and a lost case in 3.6%. The Aderson-Hynes dismembered technic was employed except for one renal unit in which the extrarenal pelvis was resected. Hydronephrosis in two renal units and one with nephrostomy for one year and one month improved spontaneously. Endopyelotomy was performed in 2 renal units and will be performed in one renal unit. Nephrectomy was carried out in one renal unit with renal dysplasia. A kidney with dysplasia excreted urine of several ml/day. Post-enhanced-X-ray computed tomography and T1-weighted image of magnetic resonance presented loss of function in the kidney. Degree of stenosis, position of stenosis and function of pelvis and ureter were different in each child. Children are constantly growing up and the condition of stenosis was changed in some cases. In conclusion, we should estimate the stenosis in children using several examinations.
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PMID:[Upper urinary tract obstruction diagnosis and treatment of congenital hydronephrosis in children]. 176 66

Partial obstruction of one ureter was created in pubescent rats (6 weeks of age) and its effects were studied after 1-15 weeks. Within 1 week, a considerable hydronephrosis and a moderate decrease in the number of glomeruli had developed. These changes did not progress with time. The renal parenchymal weight never became affected and the microstructure was only slightly influenced. Thus, the effects of a partial ureteric obstruction on renal morphology seem to be comparatively mild in this age group, and even less prominent than the modest changes previously observed in rats obstructed since the neonatal period. The reasons for this age difference and for the reduction in glomerular number are discussed.
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PMID:Partial ureteric obstruction in the pubescent rat. II. Long-term effects on the renal morphology. 177 99

The patient was a 49-year-old male. He had a history of asymptomatic hematuria that had occurred 3 years previously. The hematuria and pollakisuria developed again from about March, 1989, and he was hospitalized for bladder tamponade in April. Bilateral percutaneous nephrostomies were performed because a contracted bladder and bilateral hydronephrosis were detected. He was then admitted to our hospital on June 21. The cause of the contracted bladder was not evident, despite extensive examination. A replacement ileocystoplasty constructed by Shishido's method was used to replace the contracted bladder. A U-shape pouch was prepared by detubularization of 25 cm of the ileum and this pouch was anastomosed to the incised end of the bladder neck after subtotal cystectomy. The ureter and ileum were then anastomosed using Coffey's method. The bladder capacity and the maximum urinary flow rate after 1 year were 350 ml and 13 ml/sec, respectively, and residual urine was not noted after urination even following abdominal pressure. Urinary incontinence was not noted either.
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PMID:[A case of replacement ileocystoplasty for contracted bladder]. 178 13

Le Duc-Camey antireflux ureteroileal reimplantation was used on 15 patients with 30 ureters reimplanted into the ileum as part of a bladder substitution procedure (Kock pouch or ileal neobladder: U-bladder) or augmentation cystoplasty (Goodwin ileocystoplasty). In our experience, no reflux was observed, while hydronephrosis was identified in one ureter of ileal neobladder (4%). Le Duc-Camey antireflux ureteroileal reimplantation is suitable for reconstruction with the ileal reservoir.
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PMID:[Le Duc-Camey antireflux ureteroileal reimplantation for continent ileal reservoir]. 178 28

Significant portion of the urologic and nephrologic patients in Yemen are treated because of the early and late complications of schistosomiasis (bilharsiasis). During two years 79 patients with renal insufficiency and complications have been examined and treated by the authors. In combination with moderate restricted renal functions hepatosplenomegaly and signs of portal hypertension were observed in female patients. Granulomatous infiltration, calcification and malignous tumour of the urinary bladder was found in men. Stricture of the ureter, uni- or bilateral consecutive hydronephrosis was detected frequently. In addition to inflammatory components bladder, ureteral and renal stones were verified. In the course of treatment 45 percutaneous nephrostomies were performed and an anterograde pyelography was carried out in 60 patients. Ureteral recanalisation was accomplished by means of an ureter stent in 8 cases. Because of serious uremia maintenance haemodialysis was performed in 52 patients. The aim of this work is to contribute to recognise the disease in early stage and emphasize the importance of establishing diagnosis as early as possible and stress the role of the appropriate causal and symptomatic treatment.
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PMID:[Late urinary tract complications of schistosomiasis]. 181 Dec 3

We describe a method of differentiating physiological from pathological dilatation of the renal collecting system in pregnant patients. In physiological hydronephrosis the dilated ureter extends down only to the level of the common iliac artery. In 2 patients with distal ureteral stones a dilated ureter was visualized past the vessels. To determine the frequency and reliability of visualizing the ureters in pregnant patients 105 consecutive asymptomatic pregnant patients were examined. Hydronephrosis was found in 83 kidneys in 59 of the patients. The dilated ureter was visualized in 64 of the renal units. The anatomy was well demonstrated by color flow Doppler scanning and in all of these cases the dilated ureter was seen to taper where it crossed the common iliac artery. These results suggest that the presence of a dilated ureter past the iliac artery is strong evidence for pathological distal ureteral obstruction in pregnancy.
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PMID:Sonographic visualization of the ureter in pregnancy. 185 20

We report two cases of urinary diversion through an appendix. Case 1. An 81-year-old man was hospitalized with oliguria. The patient had a past history of left nephro-ureterectomy for left ureteral tumor. Ultrasound showed right hydronephrosis due to recurrence in the bladder and right ureter. A total cystectomy and partial ureterectomy were carried out, and an appendix conduit was constructed because the ureter was not sufficiently long for ureterocutaneostomy. Case 2. A 68-year-old woman with diabetic neurogenic bladder, hypothyroidism, and chronic obstructive lung disease was hospitalized with the complaint of difficulty in self-catheterization. Continent vesicostomy was carried out according to the method of Mitrofanoff using the appendix. Both patients were tubeless and without postoperative complications before discharge. Appendix conduit and Mitrofanoff operation, which can be performed by a simple surgical procedure, are considered to be applicable to poor risk cases.
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PMID:[Urinary diversion using an appendix: a report of two cases]. 185 92

We reported two cases of nephrotic syndrome associated with hydronephrosis. A forty four year old male patient who suddenly complained of nephrotic syndrome, showed left hydronephrosis caused by lower ureteral stenosis. Renal biopsy specimen obtained from the right kidney revealed minor glomerular abnormalities. A sixteen year old female patient had a long history of proteinuria before the onset of nephrotic syndrome. She suffered from bilateral hydronephrosis of which the etiology was unclear. Renal biopsy specimen obtained from the left kidney revealed membranous nephropathy. Because in both cases urine samples collected from each ureter showed the presence of a massive protein, the other kidney was thought to be involved with the same disease. The association of nephrotic syndrome with hydronephrosis is extremely rare. The significance of this unusual combination was discussed with respect to the literature.
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PMID:[Two cases of nephrotic syndrome associated with hydronephrosis]. 187 63

Venous compression of the ureter is a rare cause of hydronephrosis. We report a case where invasion of the inferior vena cava by a renal carcinoma led to dilation of the ovarian vein and ureteric obstruction.
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PMID:Case report: unilateral hydronephrosis following obstruction of the inferior vena cava by tumour thrombus. 188 83

A 32-year-old female visited our clinic with the chief complaints of macroscopic hematuria and pollakisuria in February 18, 1987. Cystoscopic examination revealed findings of cystitis but bleeding from the ureteral orifice was not observed. IVP showed right non visualized kidney and retrograde pyelography demonstrated right ureteral stenosis on the lower ureter and right hydronephrosis. Total hysterectomy, right oophorectomy and right ureterolysis were carried out in March 5. Right lower ureter was buried in the fibrous tissue approximately over 2 cm above the crossing with iliac vessels. Dark reddish colored small tumor was noticed in the stenosed ureter and resected. The histological diagnosis confirmed endometriosis. A total of 37 cases of ureteral endometriosis in the Japanese literature was reviewed.
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PMID:[Ureteral endometriosis: a case report]. 189 98


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