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Intraoperative double-J stent insertion in children with scintigraphic impaired renal function and obstructive
E Erculiani1, N Zampieri, M Cecchetto
1Paediatric Surgical Unit, Department of Surgical Sciences, Policlinico ''G. B. Rossi'', University of Verona, Verona, Italy.
Insights
Ureteral double-J (DJ) stents safely improve kidney growth in children with urinary tract malformations. Long-term stenting (over 3 months) shows the best clinical and radiological results.
Area of Science:
- Pediatric Urology
- Nephrology
- Medical Devices
Background:
- Ureteral double-J (DJ) stents are common in urology.
- Their efficacy in pediatric patients requires further clarification.
Purpose of the Study:
- To assess the benefits and effectiveness of ureteral stents in children.
- To correlate clinical and radiological data with stent duration.
Main Methods:
- 24 pediatric patients (2-13.5 months) with obstructive urinary tract malformations underwent ureteral stenting.
- Evaluated clinical and radiological variables, including blood tests and imaging, pre-, intra-, and post-stenting.
Main Results:
- Stent insertion improved renal parenchymal thickness and growth.
- Improvements correlated with stent duration (>3 months), but not with blood or scintigraphic values.
- No significant correlation found between improved blood tests and scintigraphic values.
Conclusions:
- Long-term internal urinary diversion with DJ stents is safe and effective in pediatric patients.
- Late complications associated with ureteral stents are infrequent.
Aim:
Ureteral double-J (DJ) stents are frequently used in modern urologic practice. At present the role of stents in urological and surgical practice and their efficacy in paediatric age are not yet clear. The aim of this study is to evaluate advantages and efficacy of ureteral stents, correlating clinical and radiological data with the permanence of stent in situ.
Methods:
Between July 1999 and July 2004 surgery with ureteral stenting was performed on 24 consecutive patients aged between 2 and 13.5 months with scintigraphic impaired renal function due to an obstructive urinary tract malformation. During the study the performance and the efficacy of indwelling stent have been evaluated through clinical and radiological variables: pre-, intra-, and post stenting blood tests, ultrasonographic and scintigraphic parameters were also evaluated.
Results:
The stent insertion was useful to improve renal parenchymal thickness and renal growth. No correlation was found between improved blood tests and scintigraphic values. The improvements of clinical and radiological data were strictly correlated with the time of stenting (>3 months).
Conclusion:
The insertion of DJ stents as long-term internal urinary diversion is useful and safe. Late complications related to the use of stents are not frequent.
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