Upper urinary tract dilation due to conglutination of intraluminal distal ureters after orthotopic neobladder with split-cuff nipple ureteral reimplants: Early results of 8 cases

Background: Upper urinary tract dilation, the most common urological manifestation of the Wolfram syndrome (WS), is mainly non-obstructive and secondary to other components of the disease such as diabetes insipidus. Misdiagnosis of the type of the hydroureter in Wolfram patients and encountering them as obstructive uropathies has led to ineffectual surgeries such as ureter re-implantation. Based on previous studies drainage related ultrasonography (DRUS) is a beneficial means of distinction between obstructive and non-obstructive hydroureters. Objectives: To avoid unnecessary interventions in patients with WS by detecting hydroureters’ types using DRUS. Methods: Seven patients (14 ureters) with a mean ± SD age of 24.43 ± 4.25 months who were diagnosed with WS were included in this retrospective study. The definite diagnosis of the non-obstructive type of hydroureter was assessed by appropriate imaging modalities. The maximum diameter of these 14 ureters, before (D1) and after (D2) 3 hours of catheterization were observed by ultrasonography. Values were recorded as D ratio ( [(|D1 - D2|)/D1] × 100) and the cutoff point of 22% for D ratio was set to discriminate the subtypes of the hydroureter. Results: Measurement of maximum diameter of ureter prior to catheterization indicated a mean ± SD diameter of 20.64 ± 2.73 mm; decreasing to 11.07 ± 2.64 mm after 3 hours of catheterization which indicates a significant decrease. Mean D ratio of 14 hydroureters was 45.95 ± 13.01% which indicated significantly higher percentage than 22%, revealing that hydroureters’ type in WS is non-obstructive. Conclusions: DRUS is a useful method for the assessment of the hydroureter’s type in WS and it could prevent performing unnecessary surgeries in WS patients.

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Characterizing upper urinary tract dilation on ultrasound: a survey of North American pediatric radiologists’ practices

Pediatric Radiology ◽

10.1007/s00247-014-3221-8 ◽

2014 ◽

Vol 45 (5) ◽

pp. 686-694 ◽

Cited By ~ 14

Author(s):

David W. Swenson ◽

Kassa Darge ◽

Sonja I. Ziniel ◽

Jeanne S. Chow

Keyword(s):

Urinary Tract ◽

North American ◽

Upper Urinary Tract ◽

Tract Dilation ◽

Urinary Tract Dilation

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Influence of Febrile Urinary Tract Infection on Ultrasonic Measurements of Nonreflux Upper Urinary Tract Dilation in Infants

10.21203/rs.3.rs-231568/v1 ◽

2021 ◽

Author(s):

Peiqiang Li ◽

Fuyun Liu ◽

Yan Huang

Keyword(s):

Urinary Tract Infection ◽

Urinary Tract ◽

Tract Infection ◽

Upper Urinary Tract ◽

Febrile Urinary Tract Infection ◽

Ureterovesical Junction ◽

Febrile Uti ◽

Ultrasonic Measurements ◽

Tract Dilation ◽

Urinary Tract Dilation

Abstract Background To investigate the changes in ultrasonic measurements of nonreflux upper urinary tract dilation in infants with febrile urinary tract infection (UTI).Methods There were 28 cases of nonreflux upper urinary tract dilatation with febrile UTI: 14 cases of ureteropelvic junction obstruction (UPJO) (14 kidneys) and 14 cases of ureterovesical junction obstruction (UVJO) (16 kidneys). Changes in anteroposterior renal pelvic diameter (APD) and ureteral dilatation during infection and after infection were compared in UPJO and UVJO patients, respectively.Results In the UPJO with febrile UTI group, the APD was 24.1±10.0 mm at the time of UTI and 16.6±7.0 mm 1 week after infection recovery (P<0.001). In the UVJO with febrile UTI group, the APD was 19.3±8.5 mm at the time of UTI and 15.2±7.7 mm 1 week after infection recovery (P<0.001). In the UVJO with febrile UTI group, the ureteric diameter was 11.0±3.2 mm during UTI and 6.8±2.6 mm 1 week after infection recovery (P<0.001).Conclusions In UPJO patients, the APD decreased after febrile UTI treatment compared with that during infection. In UVJO patients, the APD and ureteric diameter decreased after febrile UTI treatment compared with that during infection.

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