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A Bibliometric Analysis of Research Trends in Paediatric Pelvic-Ureteric Junction Obstruction

Alvin Tung Yong Zong1, Oon Chong Chew2, Wei Kang Yap3

  • 1Urology, Mersey and West Lancashire Teaching Hospitals NHS Trust, Prescot, GBR.

Cureus
|November 24, 2025
PubMed

Insights

Research on pelvic-ureteric junction obstruction (PUJO) in children shows a steady increase in publications. Trends are shifting towards advanced robotic surgery and imaging, with future focus on minimally invasive techniques and biomarkers.

Area of Science:

  • Pediatric Urology
  • Nephrology
  • Bibliometrics

Background:

  • Pelvic-ureteric junction obstruction (PUJO) is a primary cause of pediatric renal impairment.
  • Significant evolution in diagnostic and therapeutic approaches for PUJO has occurred over recent decades.

Purpose of the Study:

  • To conduct a comprehensive quantitative bibliometric analysis of research trends in PUJO over the last four decades.
  • To identify publication patterns, leading contributors, and evolving research themes in pediatric PUJO.

Main Methods:

  • Bibliometric analysis of 2019 articles published between 1985 and 2025 from Web of Science Core Collection.
  • Utilized Bibliometrix R package and VOSviewer for data analysis.
  • Analyzed publication counts, country productivity, journal activity, influential authors, and keyword co-occurrence.

Main Results:

  • A consistent rise in annual publications related to PUJO was observed.
  • The United States led in productivity (574 articles), and the Journal of Pediatric Urology was the most active journal (255 articles).
  • Keyword analysis indicated a shift from traditional methods (open surgery, ultrasonography) to modern techniques (robotic surgery, magnetic resonance urography).

Conclusions:

  • Research output in pediatric PUJO is growing, reflecting increased global interest.
  • The field is transitioning towards advanced, minimally invasive surgical and imaging modalities.
  • Future research priorities include refining minimally invasive techniques, assessing long-term outcomes, and identifying novel biomarkers for PUJO.

Keywords:
bibliometric analysisminimally invasivepaediatricpelvic-ureteric junction obstructionresearch trends

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