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Percutaneous renal biopsy using Monopty needle

J T Jagose1, T J Vachharajani, S G Kulkarni

  • 1Dept of Nephrology, Bombay Hospital Institute of Medical Sciences.

The Journal of the Association of Physicians of India
|January 1, 1995
PubMed
Summary

The Monopty needle is safer for percutaneous renal biopsies than the Tru-cut needle, yielding fewer serious complications. While Tru-cut provided adequate tissue more often, Monopty

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Area of Science:

  • Nephrology
  • Urology
  • Medical Devices

Background:

  • Percutaneous renal biopsy is a crucial diagnostic procedure.
  • Needle selection impacts sample adequacy and complication rates.

Purpose of the Study:

  • To compare the safety and efficacy of the Monopty needle versus the Travenol Tru-cut needle for percutaneous renal biopsies.

Main Methods:

  • Forty-six percutaneous renal biopsies were performed using the Monopty needle.
  • An equal number of biopsies were performed using the Travenol Tru-cut needle.
  • Sample core length, tissue adequacy, needle reusability, and complication rates were assessed.

Main Results:

  • The Tru-cut needle yielded adequate tissue in 80.4% of cases, compared to 65.5% for the Monopty needle.

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  • Both needles demonstrated similar reusability.
  • The Tru-cut needle was associated with ten serious complications (gross hematuria, perinephric hematoma), while the Monopty needle was linked to only two cases of hematuria.

    • Conclusions:

    • The Monopty needle offers a significantly safer alternative for percutaneous renal biopsies.
    • Despite slightly lower tissue adequacy rates, the reduced risk of serious complications favors the Monopty needle.