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Randomized Controlled Trial
. 2023 Aug;55(8):1931-1936.
doi: 10.1007/s11255-023-03584-3. Epub 2023 May 19.

A novel less-traumatic needle for kidney puncture: first clinical experience

Andrey Morozov  1 , Nikita Kalinin  1 , Alexander Androsov  2 , Jonathan McFarland  3   4 , Andreas Scolarikos  5 , Daniel Saidian  6   7 , Juan Gomez Rivas  8 , Bhaskar Somani  9 , Dmitry Enikeev  10   11   12 , Petr Glybochko  1 , Magomed Gazimiev  1
Affiliations
Randomized Controlled Trial

A novel less-traumatic needle for kidney puncture: first clinical experience

Andrey Morozov et al. Int Urol Nephrol. 2023 Aug.

Abstract

Introduction: To decrease complication rate, we developed a novel MG needle for kidney puncture consisting of a pointed cannula, an atraumatic mandrin-bulb and a spring mechanism pushing the mandrin-bulb forward.

Aim of the study: To assess efficacy and safety of kidney puncture during percutaneous nephrolithotomy (PCNL) using a novel less-traumatic MG needle within a clinical trial.

Materials and methods: We conducted a prospective randomized single-center study. In the experimental group, kidney puncture was performed with a novel MG needle while in the control group, standard Trocar or Chiba puncture needles were used.

Primary endpoint: hemoglobin drop.

Results: A total of 67 patients were enrolled. Patients who underwent standard puncture (n = 33) had higher hemoglobin drop in the early postoperative period (p = 0.024). Although there was no statistical difference in overall complication rate between the two groups (p = 0.351), two severe Clavien-Dindo IIIa complications with urinoma occurred in patients from the control group.

Conclusion: Less-traumatic needle for kidney puncture may reduce hemoglobin drop and prevent the development of severe complications. At the same time, in terms of stone-free rate (SFR), the efficacy of PCNL remains the same regardless of the needle used for renal access.

Keywords: Kidney (renal) puncture; Kidney calculi; Less-traumatic puncture needle; MG needle; Percutaneous nephrolithotomy (PCNL).

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References

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