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[Ureteral strictures caused by bilharziasis].

S Al-Shukri1, M H Alwan, M Nayef

  • 1Chirurgische Klinik des Al-Sabah-Krankenhauses Kuwait.

Zeitschrift Fur Urologie Und Nephrologie
|November 1, 1987
PubMed
Summary

This study analyzed 512 patients with ureteral strictures caused by bilharziasis, a parasitic infection. The researchers found that the lower third of the ureter was most commonly affected, with 91.7% of strictures occurring in this region. Bilateral involvement was common, affecting 63.7% of patients. The most frequently used surgical techniques were passage ureteroneocystostomy (40.7%), neoimplantation (25.1%), and nipple-ureteroneocystostomy (19.2%). Postoperative complications occurred in 6.1% of cases, with no surgical deaths. The authors propose that careful selection of surgical techniques and prevention of reinfection are key to successful treatment.

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Area of Science:

  • Urology
  • Parasitic disease outcomes
  • Surgical intervention studies

Background:

Ureteral strictures are a known complication of bilharziasis, a parasitic infection affecting the urinary tract. Prior research has shown that bilharziasis can cause chronic inflammation and scarring in the urosystem. However, the exact distribution of strictures along the ureter and their surgical management remains unclear. No prior work had resolved the frequency of strictures in specific ureteral segments. That uncertainty drove the need for a comprehensive analysis of clinical data. This gap motivated a detailed review of patient records to determine patterns of stricture occurrence. The study aimed to clarify whether certain ureteral regions are more commonly affected. It also sought to evaluate the effectiveness of various surgical techniques. Understanding these factors could improve treatment strategies for affected patients.

Purpose Of The Study:

The purpose of this study was to analyze the anatomical distribution and surgical outcomes of ureteral strictures caused by bilharziasis. The researchers propose to determine which ureteral segments are most frequently affected. They also aimed to assess the success rates of different surgical interventions. This study sought to provide evidence-based guidance for treatment decisions. The motivation was to improve clinical outcomes for patients with this condition. By examining a large cohort, they aimed to identify patterns in stricture location. The study also intended to evaluate postoperative complication rates. These findings could inform best practices in urological surgery.

Keywords:
Ureteral stricture treatmentBilharziasis complicationsUrological surgeryParasitic disease outcomes

Frequently Asked Questions

The lower third of the ureter was most frequently affected, with 737 strictures (91.7%).

Passage ureteroneocystostomy was the most common surgical approach, used in 40.7% of cases.

Bilateral strictures were present in 63.7% of patients, indicating a high likelihood of affecting both ureters.

The authors propose that selecting the appropriate surgical technique improves outcomes and reduces complications.

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Main Methods:

The study analyzed data from 512 patients diagnosed with bilharziasis-related ureteral strictures. Researchers reviewed medical records to determine the anatomical distribution of strictures. They classified strictures into upper, middle, and lower thirds of the ureter. The most common surgical techniques were recorded and categorized. The team also documented postoperative complications and mortality rates. Bilateral involvement was assessed in a subset of patients. The researchers used descriptive statistics to summarize the data. They focused on identifying trends in treatment approaches and outcomes.

Main Results:

The study found that 804 strictures were identified in 512 patients with bilharziasis. Bilateral strictures were present in 326 patients, accounting for 63.7% of cases. The lower third of the ureter was most frequently affected, with 737 strictures (91.7%). Strictures in the middle and upper thirds were less common, with 67 cases (8.3%). The most common surgical technique was passage ureteroneocystostomy (40.7%). Nipple-ureteroneocystostomy was used in 19.2% of cases. Neoimplantation at the bladder roof was performed in 25.1% of surgeries. Postoperative complications occurred in 31 patients (6.1%), with no reported mortality.

Conclusions:

The authors propose that the lower third of the ureter is most commonly affected by bilharziasis-induced strictures. They suggest that bilateral involvement is frequent in this patient population. The study indicates that passage ureteroneocystostomy is the most commonly used surgical approach. The researchers propose that careful selection of surgical techniques improves outcomes. They suggest that preventing reinfection is essential for long-term success. No prior work had resolved the optimal surgical approach for these cases. The authors state that complication rates remain relatively low with current techniques. These findings may guide clinical decision-making in managing bilharziasis-related strictures.

Postoperative complications occurred in 31 patients (6.1%), with no reported mortality.

The authors suggest that preventing reinfection is essential for long-term success in managing these strictures.