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

We studied the etiology, diagnosis and management of 201 cases of urinary extravasation reported in the Japanese literature along with our five cases. Most of them were caused by urolithiasis and malignant tumors. Four of our five cases also presented with a ureter stone; two being cured by spontaneous stone passage within several days and the others being treated by ureterolithotomy or nephrectomy. The other case involving a ureter tumor was treated by nephroureterectomy with partial cystectomy. The clinical manifestations of urinary extravasation were distinguished as spontaneous peripelvic extravasation and spontaneous rupture of the renal pelvis and ureter. Performing an accurate and differential diagnosis of these cases, however, was difficult. We therefore propose a set of clinical diagnostic criteria based on our findings of X-ray examination and the macroscopic appearance seen during surgical treatment. We review the 201 reported cases along with our five cases of urinary extravasation and discuss their diagnostic procedures and treatment approaches.
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PMID:[Urinary extravasation: report of five cases and review of the Japanese literature]. 810 70

Therapeutic results of remote lithotripsy have been analyzed for 1016 patients with urolithiasis. The authors also focus on specific features of remote lithotripsy in anomalous stones, in nephroliths on the single and transplanted kidney, in location of the stone in the ureter. The efficacy of the procedure is reviewed in pediatric patients. Satisfactory results were achieved in 962 patients (95%). Remote lithotripsy is considered to be a valuable component of combined treatment of urolithiasis replacing successfully open surgery in 95% of the cases.
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PMID:[Extracorporeal lithotripsy in certain forms of urolithiasis]. 820 62

A new ureterosigmoidostomy (USS) procedure in exstrophy of the bladder in children comprises establishing a long submucous channel (SC) in the upper or middle third of the sigmoid. This is done by tenial, atraumatic for the mucosa, cut of the sigmoid wall followed by mucosal dissection along the length 2-3 mm larger than the diameter of previously immobilized ureter. After that a special instrument creates upwards an oblique SC, the ureter is placed into the SC opening made in the wall musculoserous layer. Finally, the shunt is established. The same USS procedure was conducted on the other ureter 3-4 cm above the previous shunt. The openings are intubated. Follow-up conducted for 6 years at best showed a complete urine retention existence in 7, a partial one in 1 cases. Radiologically, renal function improved in all the patients. Neither enteropelvic reflex, nor urolithiasis were observed.
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PMID:[A new method of ureter-sigmoid anastomosis in bladder exstrophy]. 820 72

A case of bilateral urolithiasis and renal insufficiency with a blind-ending branch of the right bifid ureter is presented. The diagnosis was made by retrograde ureterogram which revealed a blind-ending branch originating in the middle third of the right ureter. Stones were treated with phased extracorporeal shock wave lithotripsy after preliminary bilateral JJ stenting. The renal parameters reverted to normal and the patient was stone-free.
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PMID:Urolithiasis with blind-ending ureteral duplication and azotemia treated with shock wave therapy. 826 19

A 27-year-old male with nephrogenic adenoma of the ureter complicating urolithiasis is reported. Nephrogenic adenoma of the ureter is extremely rare, and this case is the sixth reported in Japan. The lesion was found at the site of the stone in the left ureter. Histopathologically, the tumor consisted of ducts resembling uriniferous tubules, and no signs of malignancy were noted. The cause of nephrogenic adenoma is considered to be metaplastic reaction to stimulation by stones and inflammation.
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PMID:[Nephrogenic adenoma of the ureter: a case report]. 826 59

Extracorporeal shock wave lithotripsy (ESWL) using Sonolith 3000 was performed on 153 patients with urolithiasis form October, 1990 to April, 1992. The location of the stone was as follows; kidney in 70 cases, ureter in 82 cases and a Kock reservoir in one case. A double J catheter was installed in 6 cases before ESWL. Epidural anesthesia was required in 4 cases because of severe pain. Among 149 cases available for follow up one month after ESWL, 119 cases (79.9%) became stone free and 19 cases (12.8%) retained stone fragments less than 4 mm in diameter. The effectiveness rate, calculated as the sum of the cases stated above, was 92.7%. A side effect was observed in one case which was perirenal hematoma but required no therapy.
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PMID:[Clinical experience in extracorporeal shock wave lithotripsy with Sonolith 3000 for urinary stones]. 846 98

Advances in surgical techniques have dramatically altered the management of patients with symptomatic urolithiasis requiring intervention. Extracorporeal shock wave lithotripsy, percutaneous nephrolithotomy, and ureteroscopy allow virtually any stone to be removed from the upper urinary tract without resorting to open surgical techniques. Extracorporeal shock wave lithotripsy is the preferred initial treatment for approximately 80% to 85% of calculi. Percutaneous nephrolithotomy is the preferred approach when dealing with more voluminous stone material (ie, > 2 cm). Ureteroscopy is generally reserved for distal ureteral calculi, although the recent advent of small flexible ureteroscopes have extended ureteroscopic techniques effectively into the proximal ureter and even the kidney. Staghorn stones are usually best managed initially with percutaneous nephrolithotomy followed by the addition of extracorporeal shock wave lithotripsy, if necessary. The relative advantages, disadvantages, and complications of extracorporeal shock wave lithotripsy, percutaneous nephrolithotomy, and ureteroscopy will be reviewed.
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PMID:Lithotripsy and surgery. 889 Apr 3

The author discusses the present role of extracorporeal shock wave treatment of urolithiasis. The views are based on personal experience and a review of the recent literature. Compared with the original device, second generation lithotriptors have led to almost painless treatment. They are less effective in fragmenting the stones, however, which implies a higher number of repeat treatments. The indications and contraindications for extracorporeal shock wave lithotripsy have remained unchanged over the last years. In principle, stones along the whole upper urinary tract can be treated. The ideal situation is a stone in the kidney pelvis less than 2.5 cm in diameter or an unimpacted stone in the upper or lower ureter, with normal collective system anatomy. The main determinants for treatment outcome are stone burden, number, location and chemical composition, presence of infection, intrarenal anatomy and fluid dynamics. Special situations often need additional treatment with other treatment modalities. Rest fragments, even less than 4 mm, are often of clinical significance within two years of treatment. Bioeffects of extracorporeal shock wave lithotripsy include anatomical and functional alterations. Usually they are resolved within weeks. The relationship between extracorporeal shock wave lithotripsy and new onset hypertension remains unresolved.
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PMID:[Extracorporeal shock wave lithotripsy in urolithiasis. An update]. 897 5

The clinic benefits of the Holmium: YAG laser include a pronounced haemostatic effect, fibreoptic delivery system and a wide range of power-setting options. We review our initial experience in treating 48 patients with ureteric stones. Stones were located in the upper, middle and lower ureter in 27%, 21% and 52% of patients respectively. The Holmium laser successfully fragmented all calculi and there were no major complications. We have found the Holmium laser to be a safe, effective and reliable alternative for the management of urolithiasis.
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PMID:Ureteroscopic holmium lasertripsy for ureteric stones. Initial experience. 960 77

828 patients were operated on the retroperitoneal organs since 1985 using a retroperitoneoscope. A total of 836 surgical interventions were performed. A cut of 3.0-3.5 cm long was made to revise the kidney and ureter, retroperitoneal part of the colon, tail of the pancreas, retroperitoneal vessels and lymph nodes via lumbocostal and inguinal approaches. A new intercostal (ribs X-XI) approach is proposed. Most of the patients had urolithiasis, pyoinflammatory lesions, renal cysts, varicocele, obstructive uropathies. Complications developed in 1.7% of cases. Retroperitoneoscopy is a method of choice in diagnosis and treatment of retroperitoneal diseases.
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PMID:[A method for retroperitoneoscopy in surgery on the the organs of the retroperitoneal space]. 982 45


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