Search results for "ureteral"
showing 10 items of 81 documents
Community-acquired febrile urinary tract infection caused by extended-spectrum beta-lactamase-producing bacteria in hospitalised infants.
2015
Abstract Introduction Extended-spectrum beta-lactamase (ESBL) producing bacteria are infrequent pathogens of urinary tract infections in children. The objective of our study was to investigate the presence, clinically associated characteristics and risk factors for acquisition of urinary tract infection/acute pyelonephritis (UTI/APN) in hospitalised children Methods A case-control study in a second level community hospital in Spain, in which 537 episodes of UTI/APN were investigated in a retrospective study between November 2005 and August 2014. Cases were patients with ESBL strains. For each case, four ESBL-negative controls were selected. A questionnaire with the variables of interest was…
Lithiasic obstructive uropathy. Hydronephrosis characterization by magnetic resonance pyelography.
2004
The purpose of this study was to evaluate the role of magnetic resonance (MR) pyelography in patients affected by hydronephrosis due to ureteric stones, in order to identify a pyonephrotic condition.In the last 3 years, 315 patients, who had originally been investigated by ultrasonography, were evaluated with MR pyelography in order to define the etiology of obstruction. In 67 patients hydronephrosis was referred as caused by lithiasis.MR pyelography not only confirmed urinary tract dilatation in all patients, but also identified grade and site of obstruction, both in acute dilatation (25 patients) and in chronic obstructions (42 patients). In 7 patients, MR pyelography documented pyonephro…
Comparing extracorporeal shock wave lithotripsy and ureteroscopy laser lithotripsy for treatment of urinary stones smaller than 2 cm: a cost-utility …
2021
[EN] Purpose To analyze the efficiency and cost-utility profile of ureteroscopy versus shock wave lithotripsy for treatment of reno-ureteral stones smaller than 2 cm. Methods Patients treated for urinary stones smaller than 2 cm were included in this study (n = 750) and divided into two groups based on technique of treatment. To assess the cost-utility profile a sample of 48 patients (50% of each group) was evaluated. Quality of life survey (Euroqol 5QD-3L) before-after treatment was applied, Markov model was designed to calculate quality of life in each status of the patients (stone or stone-free with and without double-J stent) and to estimate the incremental cost-utility. Monte carlo sim…
Angiotensin type 2 receptor is important in the normal development of the ureter
1999
In humans, the actions of angiotensin II are transduced through the AT1 and AT2 receptors which have recently been implicated in renal organogenesis. Polymorphisms in the human angiotensin II receptor genes have been linked to cardiovascular and nephrological disorders. In this study we evaluated 35 patients with either primary obstructive megaureter or posterior urethral valves. Each was genotyped for the A1166 AT1 polymorphism and the recently described A-1332G AT2 transition. The incidence of these genetic variants was also evaluated in normal controls without any ultrasonographic urological abnormalities. Similar to our previous findings in congenital urological abnormalities, the AT1 r…
Local excision of urothelial cancer of the upper urinary tract.
1986
Abstract In 9 of 93 patients (9.7%) with urothelial cancer of the upper tract (7 renal pelvis tumors, 3 ureteral tumors), conservative surgery was employed using a free peritoneal autotransplant for replacement of the renal pelvis in 5 kidneys. Absolute indications for conservative surgery were solitary kidneys/nonfunctioning contralateral kidneys in 4 patients and bilateral tumors in 1 patient. Local recurrences developed 1-3 years after operation in 4 of 6 kidneys (3 patients), 3 of which had grade-2 and grade-3 primary lesions. All patients were treated successfully by repeated local excision. In the presence of a normal contralateral kidney, local tumor excision was done electively in 4…
Bilateral ureteral obstruction and renal failure caused by massive retroperitoneal hematoma: is there a pelvic compartment syndrome analogous to abdo…
1998
Objectives: To describe an intrapelvic compartment syndrome analogous to abdominal compartment syndrome and to characterize its diagnosis and treatment. Design: Retrospective analysis. Setting: Level I trauma center. Patients: Three patients with pelvic ring or acetabular fractures presented with bilateral ureteral obstruction, renal organ failure. and anuria due to direct compression of both ureters in the true pelvis by a massive retroperitoneal hematoma, Intervention: Surgical therapy consisted of fracture stabilization, decompression of the retroperitoneal space, and evacuation of the hematoma. Persistent isolated bleeding points were either embolized preoperatively or ligated. Results:…
Long-Term Followup Of 158 Young Adults Surgically Treated For Vesicoureteral Reflux In Childhood: The Ongoing Risk Of Urinary Tract Infections
2002
We recorded urinary tract infections in the long term after surgical reflux correction.A total of 158 of 189 patients (160 females and 29 males) who were followed in 1985, an average of 10.8 years after reflux surgery were contacted again in 1995. At that time median patient age was 26 years (range 15.7 to 38.8) and the average period of observation was 20.3 years (range 13.4 to 26).In 82% of the patients febrile and in 18% afebrile symptomatic urinary tract infections had developed preoperatively. In the first 10-year period after operation 46% of patients continued to have symptomatic urinary tract infections compared with 52% in the second 10-year interval. In the 2 periods the incidence…
Ruptured angiomyolipoma of the kidney: a rare differential diagnosis of flank pain.
2017
Angiomyolipomas (AMLs) of the kidney are typically benign and rare, with an incidence of 2% of all renal masses [1]. They are associated with tuberous sclerosis in about 20% of cases. If ruptured, ...
Primary megaureter in adults.
1984
The terminology of megaureters, their histological findings and etiology vary greatly in the literature. Primary obstructed megaureters must be clearly differentiated from megaureters caused by infravesical obstruction. The characterization and therapeutical consequences of the two types also differ. In a retrospective study, 43 adult patients with 54 primary obstructed megaureters (male:female = 30:13) were studied. This diagnosis excluded infravesical obstruction, reflux and neurogenic disorders. The main symptoms were flank pain, infection and hematuria. An operation was performed in 25 patients; 29 were treated conservatively. The criteria for surgery are discussed in relation to sympto…
Reflux nephropathy: a clinico-pathological study of 16 cases.
1991
The pathologic features of 16 nephrectomy specimens obtained from patients with a radiological diagnosis of reflux nephropathy were analyzed. Chronic pyelonephritis was diagnosed in 7 cases, renal dysplasia in 5 and segmental atrophy in 4. Clear correlations between pathologic pictures and pathogenic mechanisms involved in the development of renal lesions in kidneys with reflux are difficult to establish. These results show, however, that 'reflux nephropathy' is a broad term, which encompasses both congenital and acquired renal lesions.