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Updated: Dec 7, 2025
Vessel-sparing Excision and Primary Anastomosis
Published on: January 7, 2019
Comparison of outcomes between 2 week versus 4 week stenting in pediatric pyeloplasty-A single centre observational
Santosh Dey1, Venkat Shankar Raman1, Tarun Peela1
1Department of Pediatric Surgery, Army Hospital, Pune, India.
Insights
Early removal of double J stents after pediatric open pyeloplasty is as effective as late removal. Shorter stenting periods improve surgical outcomes and renal function while reducing complications.
Area of Science:
- Pediatric Urology
- Surgical Outcomes
- Renal Function
Background:
- Pyeloplasty is a common procedure for ureteropelvic junction obstruction in children.
- Double J stents are often used post-pyeloplasty to ensure urine drainage.
- The optimal duration for stent placement remains a subject of investigation.
Purpose of the Study:
- To compare surgical outcomes, renal function improvement, and complications between early (2 weeks) and late (4 weeks) stent removal after pediatric open pyeloplasty.
Main Methods:
- A retrospective study of 72 pediatric patients undergoing open pyeloplasty.
- Group 1: Late stent removal (4 weeks, n=43).
- Group 2: Early stent removal (2 weeks, n=29).
- Comparison of pre- and post-operative data including drainage patterns, split renal function, and complications.
Main Results:
- No significant difference in pre-operative split renal function between groups (p=0.37).
- Similar postoperative improvement in drainage patterns (95% vs 97%) and split renal function (97% vs 88%, p=0.51).
- Lower complication rate in the early removal group (7% vs 16%).
Conclusions:
- Early double J stent removal (2 weeks) is effective post-pyeloplasty.
- Shorter stenting duration achieves comparable surgical success and renal function improvement.
- Early removal is associated with a reduced risk of stent-related complications.
Objective:
To compare the surgical outcomes, improvement in renal function and complications between early stent removal (2 weeks) and late stent removal (4 weeks) after pediatric open pyeloplasty.
Methods:
A total of 72 open pyeloplasty were included in the study. Forty-three underwent late stent removal (Group 1) and 29 underwent early stent removal (Group 2). Pre-operative and post-operative follow-up data were compared to see the effect of early stent removal on the postoperative drainage pattern at 6 months after surgery and improvement in split function of affected kidney. The complications between the two groups were also compared.
Results:
Both the groups were matched with respect to age, sex, side and antero-posterior diameter of pelvis. Pre-operative mean split function in Group 1 was 42% (26%-54%) while it was 39% (19%-42%) in Group 2 (p=0.37). Postoperative improvement in drainage pattern was seen in 69 out of 72 (96%) patients, 41 out of 43 (95%) in Group 1 and 28 out of 29 (97%) in Group 2. Improvement in split function occurred in 35 of 38 (97%) in Group 1 and 23 of 26 (88%) patients in Group 2 (p=0.51). Complications were seen in nine out of 72 (12.5%) patients. Incidence of complication in Group 1 was 16% (7/43) and Group 2 was 7% (2/29), and relative risk was 2.36.
Conclusion:
A shorter duration of double J stenting is as effective as a longer stenting period in terms of surgical success outcomes and improvement in split renal function along with a decreased risk of stent related complications.
