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Related Experiment Videos

Infundibular stenosis after percutaneous nephrolithotomy.

J Kellogg Parsons1, Thomas W Jarrett, Vanessa Lancini

  • 1Brady Urological Institute, The Johns Hopkins Medical Institutions, Baltimore, MD, USA.

The Journal of Urology
|December 18, 2001
PubMed
Summary

Infundibular stenosis is a rare complication after percutaneous nephrolithotomy (PCNL), occurring in 2% of cases. It is linked to longer procedures, multiple stone removals, and prolonged drainage, potentially leading to renal impairment.

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Area of Science:

  • Urology
  • Nephrology
  • Surgical Complications

Background:

  • Acquired infundibular stenosis is a potential complication following percutaneous nephrolithotomy (PCNL).
  • Understanding the incidence and risk factors is crucial for patient management.

Purpose of the Study:

  • To review the institutional experience with infundibular stenosis after PCNL.
  • To identify factors associated with its development and outcomes.

Main Methods:

  • Retrospective analysis of patients diagnosed with infundibular stenosis post-PCNL (1995-2000).
  • Evaluation of medical history, stone characteristics, surgical techniques, and treatment outcomes.
  • Correlation of stenosis development with prior procedures and operative parameters.

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Main Results:

  • Infundibular stenosis occurred in 2% of 223 PCNL cases.
  • Associated factors included prolonged operative time (mean 258 min), multiple procedures, and extended nephrostomy drainage (mean 33 days).
  • Stenosis typically developed within a year at prior access sites; mild/moderate cases treated with observation/dilation, severe cases impacted renal function.

Conclusions:

  • Infundibular stenosis is a rare but significant complication of PCNL.
  • Risk factors include prolonged operative time, large stone burden, and extensive drainage.
  • Management varies by severity, with severe cases potentially causing renal impairment.