Related Experiment Video
Updated: Jan 23, 2026

Author Spotlight: Minimally Invasive Relief for Occipital Neuralgia at the Nuchal Line
Published on: September 13, 2024
Comparison of 30-day postoperative outcomes of open and minimally invasive pyeloplasty utilizing the prospective
K Woo1, L Bukavina2, K Mishra2
1Case Western Reserve School of Medicine, Cleveland, OH, USA.
Insights
Open pyeloplasty (OP) is a viable surgical option for ureteropelvic junction obstruction in children, showing similar complication rates to minimally invasive pyeloplasty (MIP). OP demonstrated lower odds of procedure-related readmissions, suggesting potentially better long-term outcomes.
Area of Science:
- Pediatric Urology
- Surgical Outcomes Research
- Minimally Invasive Surgery
Background:
- Open pyeloplasty (OP) has been the traditional standard for pediatric ureteropelvic junction obstruction.
- Minimally invasive pyeloplasty (MIP) is emerging as a popular alternative for both pediatric and adult patients.
Purpose of the Study:
- To compare the outcomes of minimally invasive pyeloplasty (MIP) versus open pyeloplasty (OP) in children.
- To evaluate differences in complication rates and readmissions between MIP and OP for pediatric ureteropelvic junction obstruction.
Main Methods:
- Analysis of data from the pediatric National Surgical Quality Improvement Program (2012-2017).
- Inclusion of 1280 patients undergoing MIP and 1190 patients undergoing OP.
- Utilized propensity score matching, univariate, and multivariable regression to assess outcomes.
Main Results:
- Open pyeloplasty (OP) had significantly shorter operative times compared to minimally invasive pyeloplasty (MIP).
- No significant difference was observed in overall peri-operative complication rates between MIP and OP.
- OP was associated with lower odds of procedure-related readmissions compared to MIP.
Conclusions:
- Minimally invasive pyeloplasty (MIP) is a viable alternative to open pyeloplasty (OP) in children, with similar peri-operative complication rates.
- Open pyeloplasty (OP) demonstrated decreased odds of procedure-related readmissions, potentially indicating fewer postoperative complications.
- Increasing patient age was associated with a decreased risk of postoperative complications, irrespective of surgical approach.
Introduction:
Open pyeloplasty (OP) has traditionally been the standard for the operative management of ureteropelvic junction obstruction in children. With advances in minimally invasive pyeloplasty (MIP) techniques, it is quickly becoming a popular alternative in both adult and pediatric population.
Objective:
To evaluate the differences in outcomes between MIP and OP for the surgical correction of ureteropelvic junction obstruction in children.
Study Design:
Data were obtained from the pediatric National Surgical Quality Improvement Program 2012-2017. We identified 1280 patients who underwent MIP and 1190 patients who underwent OP between 2012 and 2017. Propensity score matching was utilized to adjust for baseline differences. Univariate and multivariable regression were performed to assess odds of complications and procedure-related readmission.
Results:
Patients who underwent OP had a significantly decreased operative time (192.42 vs 142.00 min, p < 0.001) compared to MIP. There was no significant difference in the rates of overall peri-operative complications (3.7% [MIP] vs 2.4% [OP] p = 0.397). On multivariable analysis, patients undergoing OP had a lower risk of procedure-related readmission (odds ratio [OR] 0.404, 95% confidence interval [CI] 0.157-0.951, p = 0.046) than MIP. In a multivariable linear regression model, the risk of having any postoperative complication, regardless of surgical approach, decreased with increasing patient age (OR 0.945, 95% CI 0.893-0.996, p = 0.037).
Discussion:
Although recent small, retrospective institutional studies have found decreased hospitalization time of MIP as compared to OP, in our large prospective database, we found no such association. While some studies suggest a higher rate of wound complications in the OP group, this was not reproduced in our study as well. MIP was, in fact, associated with higher rate of readmissions as compared to the OP group, which may act as a surrogate of long-term complications in these patients.
Conclusion:
MIP offers an alternative to OP in the pediatric population with similar rates of peri-operative complications. However, our study shows decreased odds of procedure-related readmission in OP, which may serve as a surrogate for less postoperative complications in these patients.
Related Concept Videos
National Nursing Organizations I
National Nursing Organizations II
The AACN emphasizes a healthy work environment through six standards to achieve an optimal patient outcome. The standards are appropriate staffing, meaningful recognition, collaboration, authentic leadership, effective communication, and decision-making. In addition, AACN provides certification programs, webinars, journals, and...
The Sense of Self: Reflected Self-Appraisal and Social Comparison
Predicting Reaction Outcomes
Outcomes of Glycolysis
Cellular respiration can occur aerobically (with oxygen) or anaerobically (without oxygen). In the presence of oxygen, cellular respiration starts with glycolysis and continues with pyruvate...
Multiple Comparison Tests
It would be easy to compare two samples using a significance alpha level of 0.05. In other words, there is only one sample pair to be compared. However, it would be difficult to identify a significantly different sample if the number...

