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Related Experiment Video

Updated: Nov 19, 2025

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A modified Whitaker test (upper urinary tract videourodynamics) using for evaluating complex upper urinary tract

Yang Yang1, Xinfei Li1, Yunxiang Xiao1

  • 1Department of Urology, Peking University First Hospital Institute of Urology, Peking University National Urological Cancer Center, Beijing, China.

Translational Andrology and Urology
|February 3, 2021
PubMed
Summary

The modified Whitaker test is a safe and feasible method for assessing upper urinary tract reconstruction. This videourodynamics technique helps determine when to safely remove nephrostomy tubes post-surgery.

Keywords:
Videourodynamicsreconstructionsurgeryupper urinary tract

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Area of Science:

  • Urology
  • Surgical Innovation
  • Diagnostic Imaging

Background:

  • Complex upper urinary tract reconstruction presents challenges in postoperative management.
  • Evaluating the functional recovery of the reconstructed urinary tract is crucial.

Purpose of the Study:

  • To assess the feasibility and efficacy of upper urinary tract videourodynamics.
  • To evaluate the modified Whitaker test in complex upper urinary tract reconstruction.

Main Methods:

  • 12 patients undergoing complex upper urinary tract reconstruction were included.
  • Modified Whitaker test performed 3 months post-operation.
  • Analysis of relative pelvic pressure and ureteral peristalsis via videourodynamics.

Main Results:

  • The modified Whitaker test was successfully completed in all 12 patients without adverse events.
  • Three types of pressure/flow patterns were identified, guiding nephrostomy tube management.
  • All patients avoided further treatment for recurrent symptoms or hydronephrosis post-tube removal.

Conclusions:

  • The modified Whitaker test is a safe and feasible tool for postoperative evaluation of complex upper urinary tract reconstruction.
  • Videourodynamics provides valuable data for safe nephrostomy tube removal decisions.