Ultra-mini-PCNL using the urological Dyna-CT in small infants: a single-center experience

Britta Grüne; Marie-Claire Rassweiler-Seyfried; Kim Müller; Philipp Nuhn; Maurice Stephan Michel; Nina Younsi; Raimund Stein; Jonas Herrmann

doi:10.1007/s11255-022-03150-3

Ultra-mini-PCNL using the urological Dyna-CT in small infants: a single-center experience

Int Urol Nephrol. 2022 May;54(5):979-984. doi: 10.1007/s11255-022-03150-3. Epub 2022 Feb 26.

Authors

Britta Grüne¹, Marie-Claire Rassweiler-Seyfried¹, Kim Müller¹, Philipp Nuhn¹, Maurice Stephan Michel¹, Nina Younsi², Raimund Stein², Jonas Herrmann³

Affiliations

¹ Department of Urology, University Medical Center Mannheim, University of Heidelberg, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany.
² Center for Pediatric, Adolescent and Reconstructive Urology, University Medical Center Mannheim, University of Heidelberg, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany.
³ Department of Urology, University Medical Center Mannheim, University of Heidelberg, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany. jonas.herrmann@umm.de.

PMID: 35220549
DOI: 10.1007/s11255-022-03150-3

Abstract

Purpose: To analyze and share our experience with ultra-mini-PCNL using the urological Dyna-CT in small infants.

Methods: A retrospective analysis was performed on all infants younger than 3 years of age who underwent ultra-mini-PCNL at our institution since 2016. Operating time, fluoroscopy time, dose area product (DAP), stone-free status, intra- and postoperative complications and the duration of hospital stay were analyzed.

Results: A total of nine interventions conducted on eight children were evaluated. The mean age of infants was 22.8 ± 11.9 months. The mean operation time and the mean fluoroscopy time were 119.2 ± 51.8 min, and 190.4 ± 93.8 s, respectively. The mean DAP was 11.4 ± 6.9 μGym² and the stone clearance at 3 months was 87.5%. No major postoperative complications were assessed, and no transfusion was given. The mean hospital stay was 4 (IQR 3-6) days.

Conclusion: Ultra-mini-PCNL utilizing the urological Dyna-CT can safely and effectively be performed in small infants with kidney stones. In this setting, the urological Dyna-CT allows for a very low radiation exposure.

Keywords: Dyna-CT; Infants; Nephrolithiasis; Percutaneous nephrolitholapaxy.

MeSH terms

Child
Child, Preschool
Fluoroscopy
Humans
Infant
Kidney Calculi* / diagnostic imaging
Kidney Calculi* / surgery
Nephrostomy, Percutaneous*
Postoperative Complications
Retrospective Studies
Tomography, X-Ray Computed
Treatment Outcome