Related Experiment Videos
Infant pyeloplasty is a low-risk procedure
D B Shaul1, J A Cunningham, P Lowe
1Division of Pediatric Urology, Children's Hospital, Los Angeles, CA.
Insights
Early pyeloplasty in infants is safe for maximizing kidney function. Comparing younger infants (under 2 months) to older infants, outcomes were similar, with slightly higher nephrostomy use in younger patients.
Area of Science:
- Pediatric Surgery
- Urology
- Nephrology
Background:
- Congenital ureteropelvic junction obstruction requires timely intervention.
- Maximizing nephron salvage is crucial for long-term kidney health.
- Surgical risks in young infants must be carefully considered.
Purpose of the Study:
- To compare the outcomes of pyeloplasty in younger infants (less than 2 months) versus older infants (over 2 months).
- To evaluate the safety and efficacy of early pyeloplasty for ureteropelvic junction obstruction.
Main Methods:
- Retrospective analysis of infant pyeloplasty records over 7 years.
- Comparison of younger infant group (YIG) and older infant group (OIG) outcomes.
- Preoperative evaluation included imaging and renography; postoperative assessment used imaging.
Main Results:
- No significant differences in overall surgical outcomes between YIG and OIG.
- YIG infants more often presented in utero (87% vs 53%); OIG infants more often presented with urinary tract infections (44% vs 0%).
- YIG had higher rates of postoperative nephrostomy drainage (67% vs 45%).
Conclusions:
- Pyeloplasty in infants less than 2 months of age is associated with comparable outcomes to older infants.
- Early pyeloplasty can be performed safely in young infants, balancing nephron salvage with surgical risks.
- Careful patient selection and monitoring are essential for successful pyeloplasty outcomes.
Abstract:
Early pyeloplasty for the treatment of congenital ureteropelvic junction obstruction to maximize nephron salvage is only justified if the potential hazards of operating on small infants are avoided. The records of all infants who underwent pyeloplasty by the authors over a 7-year period were analyzed. The outcome of surgery in the younger infant group (YIG; patients less than 2 months of age) was compared with that of the older infant group (OIG; patients more than 2 months of age). Preoperative evaluation in cases of mild or moderate hydronephrosis was directed toward ruling out a nonobstructed collecting system and included voiding cysto-urethrography and serial ultrasonography and/or dual isotope diuretic renography. Open pyeloplasty was performed if collecting systems had deteriorated or were demonstrated to be obstructed; it was also performed for severe cases of hydronephrosis. Postoperative assessment consisted of serial ultrasonography and/or nuclear imaging to confirm decompression and relief of obstruction. Thirty three pyeloplasties were performed in 31 patients in the YIG (two bilateral), and 33 were performed in 32 infants in the OIG (one bilateral). The only significant differences between the groups were as follows. Patients in the YIG were more likely to present in utero (87% v 53%; P < .01), whereas those in the OIG were more likely to present with a urinary tract infection (44% v 0%; P < .01). The YIG was more likely to have nephrostomy drainage postoperatively (67% v 45%; P < .01). In the overall series, there were five complications, all of which were postoperative infections requiring intravenous antibiotic therapy. Two occurred in the YIG and three in the OIG.(ABSTRACT TRUNCATED AT 250 WORDS)