Laparoscopic Repair of Circumcaval Ureter: One-year Follow-up of Three Patients and Literature Review

Bagheri, Fariborz; Pusztai, Csaba; Szántó, Árpád; Holman, E.; Juhász, Zsolt; Beöthe, Tamás; Banyai, Daniel; Farkas, László

doi:10.1016/j.urology.2009.02.048

Cited by 16 publications

(14 citation statements)

References 20 publications

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“…In humans, this condition can be diagnosed later in life (at 30 to 60 years of age). [21][22][23] This seems to be a condition similar to that identified in the dog of this report.…”

Section: Discussionsupporting

confidence: 84%

Endoscopic placement of ureteral stents for treatment of congenital bilateral ureteral stenosis in a dog

Lam

Berent²,

Weisse³

et al. 2012

javma

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“…In humans, this condition can be diagnosed later in life (at 30 to 60 years of age). [21][22][23] This seems to be a condition similar to that identified in the dog of this report.…”

Section: Discussionsupporting

confidence: 84%

Endoscopic placement of ureteral stents for treatment of congenital bilateral ureteral stenosis in a dog

Lam

Berent²,

Weisse³

et al. 2012

javma

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“…The majority of the non‐obstructed (89%; Group 3) and obstructed (80%; Group 1) CUs were on the right side, which is similar to that previously reported in cats and humans . The cause of a ureteral obstruction with an associated CU is speculated to either be from compression of the ureter by the vena cava, kinking of the ureter due to the tortuous course it takes around the vena cava, a localized fibrotic reaction that occurs within the ureter, a periureteral venous ring that can occur with gonadal and lumbar veins, and the development of a ureteral stricture that occurs during embryological development as the ureteric bud is being formed, and concurrently compressed by the vein . In humans, marked hydronephrosis is seen in 50% of patients with Type I CUs, which ultimately develop obstructive disease .…”

Section: Discussionsupporting

confidence: 80%

Clinical Presentation and Outcome of Cats with Circumcaval Ureters Associated with a Ureteral Obstruction

Steinhaus¹,

Berent²,

Weisse³

et al. 2014

Veterinary Internal Medicne

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BackgroundCircumcaval ureters (CU) are a rare embryological malformation resulting in ventral displacement of the caudal vena cava, which crosses the ureter, potentially causing a ureteral stricture.ObjectivesTo evaluate cats with obstructed CU(s) and report the presenting signs, diagnostics, treatment(s), and outcomes. Cats with obstructed CU(s) were compared to ureterally obstructed cats without CU(s).Animals193 cats; 22 circumcaval obstructed (Group 1); 106 non‐circumcaval obstructed (Group 2); 65 non‐obstructed necropsy cases (Group 3).MethodsRetrospective study, review of medical records for cats treated for benign ureteral obstructions from AMC and University of Pennsylvania between 2009 and 2013. Inclusion criteria: surgical treatment of benign ureteral obstruction, complete medical record including radiographic, ultrasonographic, biochemistry, and surgical findings.ResultsSeventeen percent (22/128) of obstructed cats had a CU (80% right‐sided) compared to 14% (9/65) non‐obstructed necropsy cats (89% right‐sided). Clinical presentation, radiographic findings, and creatinine were not statistically different between Groups 1 and 2. Strictures were a statistically more common (40%) cause of ureteral obstruction in Group 1 compared to Group 2 (17%) (P = .01). The MST for Groups 1 and 2 after ureteral decompression was 923 and 762 days, respectively (P = .62), with the MST for death secondary to kidney disease in both groups being >1,442 days. Re‐obstruction was the most common complication in Group 1 (24%) occurring more commonly in ureters of cats treated with a ureteral stent(s) (44%) compared to the subcutaneous ureteral bypass (SUB) device (8%) (P = .01).Conclusions and Clinical ImportanceUreteral obstructions in cats with a CU(s) have a similar outcome to those cats with a ureteral obstruction and normal ureteral anatomy. Long‐term prognosis is good for benign ureteral obstructions treated with a double pigtail stent or a SUB device. The SUB device re‐obstructed less commonly than the ureteral stent, especially when a ureteral stricture was present.

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“…Although the retrocaval segment could be easily freed from the vena cava laparoscopically, the decision of whether to resect or preserve the retrocaval segment of the ureter has been controversial. 6 Singh et al 7 and Li et al 8 suggested that the retrocaval segment of the ureter was reserved when they had a grossly normal appearance without obvious stenosis, and the obvious stenotic retrocaval segment of the ureter was excised. Zhang et al 9 suggested excising the retrocaval segment if a 8F catheter could not pass through the segment easily.…”

Section: Laparoscopic Ureteroureterostomy For Retrocaval Ureter 805mentioning

confidence: 99%

Treatment of Retrocaval Ureter by Retroperitoneal Laparoscopic Ureteroureterostomy: Experience on 12 Patients

Chen

et al. 2011

Journal of Laparoendoscopic & Advanced Surgical Techniques

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Laparoscopic Repair of Circumcaval Ureter: One-year Follow-up of Three Patients and Literature Review

Cited by 16 publications

References 20 publications

Endoscopic placement of ureteral stents for treatment of congenital bilateral ureteral stenosis in a dog

Endoscopic placement of ureteral stents for treatment of congenital bilateral ureteral stenosis in a dog

Clinical Presentation and Outcome of Cats with Circumcaval Ureters Associated with a Ureteral Obstruction

Treatment of Retrocaval Ureter by Retroperitoneal Laparoscopic Ureteroureterostomy: Experience on 12 Patients

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