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Updated: Jun 27, 2026
06:05
Assessing Urinary Tract Junction Obstruction Defects by Methylene Blue Dye Injection
Published on: October 12, 2017
[Urolithiasis and ureteropelvic junction obstruction].
C Saussine1, E Lechevallier, O Traxer
1Service d'urologie, hôpital Civil, 1, place de l'Hôpital, 67091 Strasbourg cedex, France. Christian.Saussine@chru-strasbourg.fr
Summary
Ureteropelvic junction (UPJ) obstruction can cause urinary issues and metabolic problems like hypercalciuria. Laparoscopic pyeloplasty offers a minimally invasive approach for UPJ obstruction and kidney stones, with outcomes comparable to open surgery.
Area of Science:
- Urology
- Nephrology
Context:
- Ureteropelvic junction (UPJ) obstruction is a common cause of urinary stasis.
- Urinary stasis associated with UPJ obstruction can lead to metabolic disorders, notably hypercalciuria.
- Concomitant renal calculi (kidney stones) frequently occur with UPJ obstruction.
Purpose:
- To review the literature concerning ureteropelvic junction (UPJ) obstruction and associated renal calculi.
- To highlight the link between urinary stagnation and metabolic disorders.
- To compare the efficacy of laparoscopic pyeloplasty with open surgery for UPJ obstruction.
Summary:
- Literature review indicates urinary stagnation from UPJ obstruction is linked to metabolic disorders like hypercalciuria.
- Laparoscopic pyeloplasty demonstrates outcomes equivalent to open surgery for UPJ obstruction.
- Minimal access surgery allows simultaneous treatment of UPJ obstruction and renal calculi via laparoscope or fibroscope.
Impact:
- Minimally invasive laparoscopic pyeloplasty provides a viable alternative to open surgery for UPJ obstruction.
- Simultaneous treatment of UPJ obstruction and kidney stones is achievable with laparoscopic techniques.
- Understanding the metabolic implications of UPJ obstruction can inform patient management.
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