Management of full-length complete ureteral avulsion

Complications and Management of Retained Double-J Stents in Children During the Coronavirus Disease-2019 Pandemic

Background

Double-J (DJ) stents were commonly used for internal drainage after major reconstructive procedures or in cases of obstruction and ureteral injuries. They should be removed or changed within the stipulated time; otherwise, they can lead to various complications such as stent occlusion, migration, breakage, encrustation, stone formation at either end of the stent, and entanglement of the two stents if bilateral stenting was done. The present study focuses on the complications and the management due to delay in the removal of the DJ stents due to the coronavirus disease-2019 pandemic.

Materials and Methods

This is a cross-sectional study over a period of 9 months. Children <12 years were included in the study. The patients' demographic data, indication for DJ stenting, time gap between DJ stenting and removal, complication with delay in DJ stent removal, and its management were recorded. Indwelling duration for >4 months was considered a delay in removal. All patients were followed up for 3 months.

Results

A total of 10 patients were included in the study. Encrustation, proximal migration, distal migration, knotting of the stent, and entanglement of the bilateral stents in the bladder were observed. These complications were managed by various endourological procedures such as ureteroscopy, percutaneous nephroscopic, and cystoscopic removal. During follow-up, all patients were symptom-free.

Conclusion

Prolonged indwelling stents can cause various complications. Endourological procedures are an essential armamentarium for a pediatric surgeon to manage these complications. Proper patient counseling regarding indwelling stents and maintaining stent registry and sending automatic messages and e-mails to patients may prevent these complications.

Endourological management of mucosal ureteral avulsion: Case report

The ureteral avulsion is the most horrific complication of ureteroscopy. The traditional treatment of ureteral avulsion is open ureteral repair. However, mucosal avulsion is a new terminology that could be managed endoscopically. Herein, we present a patient with mucosal avulsion. This case was followed-up with imaging and there wasn't any evidence of ureteral stenosis. We believe that mucosal ureteral avulsion could be managed by endourology techniques in selected patients. However, pros and cons of this treatment option should be carefully discussed with patients and long term follow up is necessary in these group of patients.

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The traditional treatment of ureteral avulsion is open ureteral repair.

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Mucosal avulsion is a new terminology that we believe that mucosal ureteral avulsion could be managed by endourology techniques in selected patients.

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Pros and cons of this treatment option should be carefully discussed with patients and long term follow up is necessary in these group of patients.

Reconstruction of full-length ureter defects by laparoscopic bladder flap forming

To evaluate the safety and efficacy of laparoscopic bladder muscle flap reconstruction in the treatment of extensive ureteral avulsion. Patients with full-length (re length > 20 cm) and upper ureteral (avulsion length > 10 cm) defects were eligible. All patients were treated with laparoscopic bladder muscle flap reconstruction. Peri-operative information and post-operative complications were recorded. The kidney function, urinary ultrasound or computed tomography (CT), sun-renal function tests emission computed tomography (ECT) and cystography after operation were recorded. Ten patients were included (7 with full-length and 3 with upper ureteral defects). Median age was 56 years and 70% of them were female. The average operation time and blood loss was 124 min and 92.2 ml. There was no treatment-related adverse effects including urinary leakage, renal colic, fever, etc. The median follow-up was 18.5 months (3–39 months). The surgery did not significantly alter the renal function and separation degree of the renal pelvis during long-term follow-up. Double J stents were removed in nine patients (90%) within six months after operation. Only one case was diagnosed with post-operative anastomotic stricture, and subsequently received laparoscopic ipsilateral nephrectomy one year after the reconstruction operation. All cases had normal voiding and pear-shaped cystography. Laparoscopic bladder flap repair is a safe and effective treatment approach together with several advantages for patients with full-length or upper ureteral avulsion.

Case report series: management of complete ureteral avulsion with review of the relevant literature

Background

Endoscopic operations and ureteroscopy have become the first choice for ureteral calculi and ureter-related operations. The ratios of the complications, which are mostly iatrogenic, range between 9 and 11%. Total ureteral avulsion during URS is quite rare with a prevalence of 0–0.3%. We present three total ureteral avulsions we experienced in our clinic during the last 2 years and their treatment.

Case presentation

During the last 2 years, we experienced three total ureteral avulsions: one of these occurred in our clinic and the other two occurred in an external center and were referred to us. In two cases, the omental flap was rotated after ureteral reimplantation and the ureter was completely wrapped inside the omental flap. In the third case, boari flap was formed from the bladder. Due to the presence of extrarenal wide renal pelvis, anastomosis was made with boari flap after a y–v flap was rotated on the renal pelvis. D-J stents of the patients were removed at the end of 3 months. Although there was mild hydronephrosis, parenchymal thinning and a significant decrease in functions were not observed. Ureteral avulsion of the patients was successfully managed without the need for nephrectomy.

Conclusion

Ureteral avulsion management is an extremely difficult condition for both the surgeon and the patient. So, the most important thing is to prevent ureteral avulsion. Ureteroplasty and omental flap treatment are applicable methods with quite successful results for complete ureteral avulsions.

Management of ureteric avulsion during ureteroscopy: a systematic review and our experience

Background

Ureteric avulsion is a disastrous intraoperative complication that can happen to any urologist during a common endoscopic procedure like ureteroscopy. The aim of this study is to evaluate the various management options of ureteric avulsion during ureteroscopy and also report our relevant experience in this topic.

Results

The Preferred Reporting Items for Systematic Reviews and Meta-Analyses of existing literature in English language was used in the period 1967–2019 with a literature search in PubMed, Cochrane Library and Google Scholar. Forty-three patients in twenty-three articles who had undergone management of ureteric avulsion during ureteroscopy were identified for review. There were 15 proximal, 19 two-point (“scabbard”) and 9 distal avulsions. All distal avulsions were managed successfully with ureteroneocystostomies or Boari flaps. Boari flaps and ureteropyelostomy with ureterovesicostomy were the common procedures used for proximal avulsions. Proximal avulsions had more varied outcomes with salvage rates of 86.9%. Procedures which incorporated the avulsed distal ureter for reconstruction had poor results.

Conclusion

Management of ureteric avulsion during ureteroscopy is a surgical challenge. While management of distal avulsions is straightforward in the form of ureteroneocystostomies and has uniformly good results in most hands, proximal avulsions need expertise in management and choosing ideal reconstruction, with variable results following reconstruction. Extended Boari flaps, ileal ureter and autotransplantation are good options for proximal avulsions. Reconstruction using the distal avascular ureter should be avoided for better long-term results.

Ureteral Avulsion during Semirigid Ureteroscopy: A Single-Centre Experience

Aims

The aim of the study is to present our experience with the management of ureteral avulsions following semirigid ureteroscopy for ureteral stones. This is one of the largest series reported so far.

Methods and Materials

It is a retrospective and observational study done at Sri Ramachandra Institute of Higher Education and Research over the last 18 years.

Results

There were seven cases of ureteral avulsion following semirigid ureteroscopy. All patients were males with a mean age of 35.7 years. All had impacted stones, with proximal ureteric location in 6 patients and distal ureteric location in 1 patient. Five cases had two-point avulsions with loss of entire ureter. Two cases had one-point avulsion: one distal ureteric and the other mid-ureteric. Of the five cases with whole length ureteral avulsion, four were managed by classical ileal replacement of ureter and the the fifth case was managed by ileal replacement of ureter by the Yang–Monti technique. Of the two cases with one-point avulsion, one was managed by uretero-neocystostomy and the other by uretero-ureterostomy. All the patients had successful outcome.

Conclusions

Even though rare, ureteral avulsion can potentially happen especially when dealing with impacted ureteric stones. Being conscious of the possible occurrence of this serious complication during any difficult ureteroscopy and exercising utmost care during the procedure are important preventive measures. However, this catastrophe can be successfully managed by either immediate definitive repair or in a staged manner.