The use of bowel interposed between proximal and distal ureter in urinary tract reconstruction

28 years of functioning of the ileal ureter - own experience and systematic review

A SHORT INTRODUCTION

Irreversible ureteral damage is a rare and challenging problem for pediatric urologists. Ileal replacement has become one of the limited surgical options for ureteral reconstruction. Only a few papers have examined the results of the ileal ureter and renal function outcomes. Furthermore, there are even fewer papers showing patients with the intestinal ureter, which is used to drain urine from a solitary kidney in early childhood.

AN OBJECTIVE

To perform a systematic review and analyze available cases of the long-term function of the "neoureter" and differences in the surgical approach. To present the case of a 29-year-old female with a history of ileal replacement of the ureter in a solitary kidney which was performed in this patient at the age of 14 months.

STUDY DESIGN

PubMed and Scopus were used to search for eligible articles. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines were strictly followed. Based on the titles, abstracts, and full-text reviews, 77 articles were analyzed, of which only 23 were directly related to pediatric cases of our interest. Medical records of the female patient, who has been treated in our center since 1991, were retrospectively described and reviewed.

RESULTS

Of 23 papers, we identified 75 cases of children who underwent ureteral substitution. The outcomes of the procedure are satisfactory and acceptable. The presented case of the female patient shows a good therapeutic option.

CONCLUSION

Ileal ureteral reconstruction is a safe and effective therapeutic option (even in a long-term follow-up). Despite many problems and complications, it allows preservation of renal and bladder function and social dryness.

Sustitución parcial del uréter por un segmento de íleon tratado según el procedimiento de Monti

The partial substitution of the ureter using a pediculated segment of the ileum is a technique used to re-establish ureteral transit and preserve the renal unit, following the resection of extensive ureteral lesions. Standard surgical procedure for an ileoureteroplasty consists of isolating an ileal duct of equal or greater length than the ureteral defect and interposing it in the urinary tract in an isoperistaltic direction. Monti described a surgical technique that allows for the creation of catheterizable stomas in continent urinary diversions, using the Mitrofanoff principle. These passageways were created from one or several 2.5 cm long ileal sections by means of their detubulization and transverse retubulization. The clinical case study presented here corresponds to a 57 year-old male with a history of ureteral lithiasis, with a 9 cm stenosis of the sacroiliac ureter. He was treated surgically by means of a resection of the stenotic ureter and the interposition of a duct made up of 2.5 ileal sections, treated in accordance with the Monti procedure. Since this operation, the patient's metabolic state has been completely normal. Morphological and functional results have also proved totally satisfactory, as the use of image techniques have shown.

Historical perspective of the use of bowel in urology

The use of bowel has been used in urinary tract reconstruction for more than a century. In the past 20 years, however, indications and methods for bowel utilization have multiplied enormously. This article outlines some of these exciting developments.

Ileal ureter

Ureteral replacement with ileal bowel segments has become common in the armamentarium of the reconstructive urologist. The use of ileal bowel substitution, whether total or segmental, has provided yet another surgical alternative for renal preservation. The indications, surgical technique, and results with the ileal ureter are reviewed.

Transureterocalicostomy: an alternative internal diversion technique

We report a case of an infiltrating retroperitoneal tumor that completely enveloped and obstructed the mid third of the left ureter. After resection of the tumor, including a 10 cm. long segment of ureter, the upper left ureter was successfully diverted to the upper calix of the right ectopic kidney (transureterocalicostomy). To our knowledge our report represents the first case of such surgery.

Traumatic disruption of the ureteropelvic junction managed by ileal interposition

The use of ileal interposition in the management of a patient with delayed diagnosis of traumatic disruption of the ureteropelvic junction is presented. The unusual presentation of this problem, potential options in reconstructing the ureter and successful outcome are discussed.

Ureteral reconstruction and bypass: experience with ileal interposition, the Boari flap-psoas hitch and renal autotransplantation

A total of 18 patients underwent an operation for extensive ureteral loss from 1980 to 1986. The indications included recurrent calculi, retroperitoneal fibrosis, surgical trauma and tumor. Of the patients 10 had construction of an ileal ureter (4 had bilateral reconstruction), 6 had creation of a psoas hitch with a Boari bladder tube and 2 were treated by autotransplantation. Mean duration of followup was 4.8 years. The procedure was successful in 17 patients. There were no apparent differences among the groups. Selection criteria and potential complications are discussed with regard to each technique. These procedures provide an excellent means for reconstruction of the urinary tract in patients who have failed other treatments.