Articles Vol. 67 No. CĐ11-NCKH 31/07/2026

OUTCOMES OF CONGENITAL HYDRONEPHROSIS TREATED WITH ANDERSON–HYNES PYELOPLASTY VIA POSTERIOR LUMBAR APPROACH IN INFANTS UNDER 12 MONTHS

Nguyen Thi Mai Thuy1,2, Hoang Danh Minh1,2
1 Department of Pediatric Urology - Vietnam National Children's Hospital
2 Khoa ngoại tiết niệu - Bệnh viện Nhi Trung ương
DOI: 10.52163/yhc.v67iCD11.6019
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Keywords
hydronephrosis, Anderson–Hynes pyeloplasty, surgical posterior approach
Abstract

Objective: To contribute to the evaluation of surgical outcomes of Anderson–Hynes pyeloplasty for ureteropelvic junction obstruction in children under 12 months of age.

Subjects and Methods: A retrospective study of infants under 12 months who underwent Anderson–Hynes pyeloplasty via a posterior lumbar approach from January 2021 to December 2024 at the National Children’s Hospital.

Results: From January 2021 to December 2024, 83 infants under 1 year of age were diagnosed with congenital hydronephrosis due to ureteropelvic junction obstruction and underwent Anderson–Hynes pyeloplasty via a posterior lumbar incision. Left-sided surgery was performed in 54/83 (65.1%); on the right-sided was 21/83 (25,3%); and 8/83 (9,6%) of patients was performed on both side. The mean preoperative anteroposterior renal pelvic diameter was 36.7 ± 11.3 mm. The mean age at surgery was 4.5 ± 3.2 months, and the mean operative time was 46.8 ± 25.7 minutes. No anastomotic leakage was reported. The average hospital stay was 3.5 days. Postoperative followup was conducted using ultrasound measurement of the anteroposterior renal pelvic diameter. The mean follow-up duration was 16.8 ± 8.7 months. The mean postoperative anteroposterior diameter decreased to 7.5 ± 4.2 mm. Three out of 83 patients required reoperation due to recurrent anastomotic stricture.

Conclusion: Anderson–Hynes pyeloplasty via a posterior lumbar approach for the treatment of hydronephrosis in infants under 1 year of age yields favorable outcomes.

 

References
[1]
Bansal R, Ansari MS, Srivastava A, Kapoor R. Long-Term Results of Pyeloplasty in Poorly Functioning Kidneys in the Pediatric Age Group. Journal of Pediatric Urology. 2012 Feb;8(1):25-8. DOI: 10.1016/j.jpurol.2010.12.012 Google Scholar
[2]
Ylinen E, Ala-Houhala M, Wikstrom S. Outcome of Patients with Antenatally Detected Pelviureteric Junction Obstruction. Pediatric Nephrology. 2004 Aug;19(8). Google Scholar
[3]
DOI: 10.1007/ s00467-004-1498-9 Google Scholar
[4]
Herthelius M. Antenatally Detected Urinary Tract Dilatation: Long-Term Outcome. Pediatric Nephrology. 2023 Oct;38(10):3221-7. DOI: 10.1007/s00467-023-05907-z Google Scholar
[5]
Piepsz A. Antenatal Detection of Pelviureteric Junction Stenosis: Main Controversies. Seminars in Nuclear Medicine. 2011 Jan;41(1):11-9. Google Scholar
[6]
DOI: 10.1053/j.semnuclmed.2010.07.008 Google Scholar
[7]
Wickramasekara N, Ignatius J, Lamahewage A. Sonographic Follow-up after Pyeloplasty: A Large, Retrospective Cohort Analysis. Pediatric Surgery International. 2023 Feb;39(1):132. DOI: 10.1007/s00383-023-05422-0 Google Scholar
[8]
Heinlen JE, Manatt CS, Bright BC, Kropp BP, Campbell JB, Frimberger D. Operative Versus Nonoperative Management of Ureteropelvic Junction Obstruction in Children. Urology. 2009 Mar;73(3):521-5. DOI: 10.1016/j.urology.2008.08.512 Google Scholar
[9]
Tabel Y, Haskologlu ZS, Karakas HM, Yakinci C. Ultrasonographic Screening of Newborns for Congenital Anomalies of the Kidney and the Urinary Tracts. J Urol. 2010;7(3):161-7. Google Scholar
[10]
Kaneyama K, Yamataka A, Someya T, Itoh S, Lane GJ, Miyano T. Magnetic Resonance Urographic Parameters for Predicting the Need for Pyeloplasty in Infants with Prenatally Diagnosed Severe Hydronephrosis. J Urol. 2006;176(4 Pt 2):1781-4; discussion 4-5. https://doi.org/10.1016/j.juro.2006.03.122 Google Scholar