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Related Experiment Videos

An experimental technique for renal intrapelvic access.

P C Ryan1, H McAllister, J M Fitzpatrick

  • 1Department of Urology, Meath Hospital, Dublin, Ireland.

Urological Research
|January 1, 1990
PubMed
Summary

Researchers developed a simple, reliable technique for long-term canine renal pelvis access using an indwelling cannula. This method facilitates various experimental measurements and procedures with minimal complications.

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Area of Science:

  • Urology
  • Nephrology
  • Surgical Techniques

Background:

  • Accurate measurement of renal pelvic parameters is crucial for understanding kidney function.
  • Existing methods for accessing the canine renal pelvis can be invasive or unreliable for long-term studies.

Purpose of the Study:

  • To describe a novel experimental technique for inserting an indwelling cannula into the canine renal pelvis.
  • To demonstrate the utility of this technique for various physiological and diagnostic measurements in dogs.

Main Methods:

  • A system comprising a cannula, Heplock, and fixation disc was designed.
  • The system was inserted into 53 canine kidneys (48 dogs) via surgical implantation.
  • Percutaneous needle access to the renal pelvis was achieved through the Heplock.

Main Results:

  • The technique was successful in 131 separate procedures with a high success rate.
  • Few complications were reported following cannula insertion and use.
  • The cannula enabled reliable measurement of pelviureteric pressure, motility, creatinine clearance, and Whitaker tests.

Conclusions:

  • The indwelling intrapelvic cannula provides a simple, cost-effective, and reliable method for long-term renal pelvic access in dogs.
  • This technique offers significant potential for various experimental applications in canine nephrology and urology.

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