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

The effects of five iodinated contrast media and of physiologic saline on bladder capacity were studied. It was found that a significantly greater volume of sodium chloride was tolerated than of Cysto-Conray, Conray 30. Hypaque meglumine 30, Hypaque sodium, and Dimer X. Dimer X was tolerated in the smallest volume. The reason for the difference in volume tolerated is not known. The bladder mucosa showed dehydration changes 6 hr after saline cystogram with no change at 24 hr, 48 hr, 7 days, and 3 months. The contrast media produced dehydration and hydropic and desquamative changes in the bladder mucosa with at least one of these changes persisting up to 3 months. There was no significant difference in the severity of the changes produced by the various contrast media. No evidence of inflammatory changes was seen in the bladder mucosa or wall or in the ureter with any of the agents.
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PMID:Contrast media used in cystourethrography. Experimental evaluation. 23 1

This study covers 230 Wetheim operations. Sixty-seven patients had Stage II carcinoma (29.17%), and 163 patients had Stage I carcinoma (70.80%). Until 1968, x-ray treatment was used after the Vienna Wertheim operation, but since then the approach has changed. Tele- and brachio-cobalt therapy is now included. The operative death-rate was 0.96%. One patient died of peritonitis, another of renal uremia. In the Vienna Wertheim group, ureteric fistulae occurred in 7.23% of patients. With the introduction of mesentery and the ureter roof into the Wertheim procedure, ureteric fistulae have currently disappeared from the material examined (133 cases), although the operation was more radical than the classical Vienna Wertheim technique. Urography examination shows that changes are twice are frequent, and later anatomical changes in the urinary system are more than twice as frequent, with the Vienna Wertheim technique. A considerable number of early hydronephroses were found to have disappeared during the first year. Urography examination has shown that the mesentery of the ureter also has a beneficial effect on the flow of urine. It serves in the prophylaxis of fistulae, and prevents greater displacement of the ureter in the parametrial vacancies.
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PMID:Wertheim hysterectomy: a ten year experience. 26 62

Ureteric obstruction resulting from retrocaval ureter may be due to either compression of the ureter by the vena cava or stenosis of the postcaval segment. If obstruction is due to stenosis, the commonly described operation of division and anastomosis through the proximal dilated ureter or pelvis, after repositioning of the ureter, is likely to fail, as is division of the vena cava itself. Excision of the postcaval segment with anastomosis of the spatulated ureter over a Silastic splint is therefore recommended. Three case histories of patients with retrocaval ureter treated surgically are presented and support this view.
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PMID:The surgical treatment of retrocaval ureter. 27 96

Following a difficult nephrectomy for pyonephrosis, two large calculi in the left pelvic ureter were not removed. The upper of these two calculi finally found its way into the bladder after ulcerating into the sigmoid colon and thence into the bladder. The calculi and the residual ureter were removed and the fistulae closed, with a successful outcome.
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PMID:Migration of a ureteric calculus to the bladder via a ureterocolic and a vesicocolic fistula. 27 1

A case of gunshot injury of the upper third of the ureter is reported. The injury was managed by ileal replacement with complete conservation of the kidney, after an attempt at primary repair had failed. A survey of the literature has not disclosed any previous report of a gunshot injury of ureter being treated by this method. However, we recommend it only in cases where the conventional procedure of end-to-end repair fails.
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PMID:Ileal replacement for gunshot injury of the ureter. 27 3

In a consecutive series of 88 cases of carcinoma of the kidney and upper urinary tract seen at one hospital, 31 had malignant urothelial tumours of the renal pelvis or ureter. Forty-two per cent of these transitional-cell carcinomas occurred in patients with renal papillary necrosis following upon prolonged and heavy analgesic ingestion. Other possible aetiological factors were heavy cigarette smoking (61% of cases), long standing urinary obstruction or infection (23%) and possible occupational exposure (6%); in only four cases (13%) was there no identifiable aetiological factor. Those cases with analgesic nephropathy were characterised by renal functional impairment, hypertension and interstitial nephritis, but there was no difference in the clinical behaviour or pathological appearances of the tumours in the two groups. The clinical and experimental evidence that certain metabolites of phenacetin are carcinogenic is reviewed.
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PMID:Analgesic abuse, renal parenchymal disease and carcinoma of the kidney or ureter. 27 65

Current daily use of artificial sweeteners (AS) and diet drinks was evaluated for 1,862 patients hospitalized for cancer and for 10,874 "control" patients hospitalized for other conditions believed not to be associated with use of these substances. The data were derived from an ongoing survey in seven countries. For cancer of most sites, the age-standardized proportion of users of AS was somewhat less than that for controls. A greater proportion of users among cancer patients than among controls was noted only for cancer of the stomach among women. Little information on urinary tract cancer was available; there were no users of AS among 13 patients with cancer of the bladder, 5 with cancer of the renal pelvis, and 2 with cancer of the ureter. There were 455 cancer patients known to have been interviewed during their initial hospitalization for the disease. Based on these cases, an age-sex-country-standardized estimate of cancer incidence for users of AS, relative to nonusers, was 1.0. Only a very small proportion of patients reported daily use of diet drinks, and the proportion of users did not differ substantially between cancer patients and controls. The present data provide virtually no support for an overall positive association of AS with cancer.
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PMID:Use of artificial sweeteners by cancer patients. 28 12

Primary benign mesodermal tumours of the ureter mostly occur in the proximal part of the ureter. A case of a large fibrous polyp of the lower end of the ureter is described. The clinical presentation, radiological findings and treatment are discussed.
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PMID:Giant fibrous polyp of the lower end of the ureter: case report and review of the literature. 29 11

Three types of cultured mammalian cells, from a rat ureter carcinoma (RUC-2), from a mouse mammary carcinoma (M8013), and from a Chinese hamster lung cell-line (CH-V79), have been compared with respect to various treatments. Using cloning assay, the sensitivity of these cell-lines was measured for ionizing radiation, U.V.-light and for temperatures of 41 degrees, 42 degrees, 43 degrees, 44 degrees and 45 degrees C. RUC-2 cells are the least sensitive to these treatments, except for 45 degrees C. M8013 is sensitive to gamma-rays and U.V.-irradiation. CH-V79 is sensitive to gamma-radiation and hyperthermia. Since sensitivity to one type of treatment does not correlate with similar susceptibility to the others, it is concluded that different mechanisms may be involved in inactivation by these treatments.
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PMID:Comparison of three mammalian cell-lines with respect to their sensitivities to hyperthermia, gamma-rays and U.V.-radiation. 30 14

The induction by gamma radiation of reproductive death in cultured cells derived from a rat ureter carcinoma (RUC-2) and from Chinese-hamster lung tissue (CH-V79) was shown to be enhanced by hyperthermic treatments at 41, 43 and 45 degrees C. The degree of enhancement was found to depend on the line of cells studied, the temperature employed and the level of damage considered. The influence of accumulating sublethal damage was decreased by hyperthermia, and the final slope of the radiation survival curve was increased. The degree of enhancement of lethal damage was found to depend on the time interval between the heat treatment and irradiation, especially at 41 degrees C.
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PMID:Thermal enhancement of the effectiveness of gamma radiation for induction of reproductive death in cultured mammalian cells. 30 51


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