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A Journal on Nephrology and Urology

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Minerva Urologica e Nefrologica 2001 June;53(2):65-7

language: Italian

Percutaneous renal biopsy with a semi-automate device. A 9-year experience

Aimino M., Francisco M., Garnieri G., Chioso P. *, Ollino M. *, Comune M., Giacchino F.

ASL n. 9 - Ivrea (TO) *Divisione di Urologia Servizio di Nefrologia e Dialisi


Background. The percutaneous renal biopsy is a fundamental investigation in the diagnostic procedure for renal diseases. The introduction of the kidney localisation by “real-time” ultrasounds made the procedure more effective and safe. The use of semi-automated and automated biopsy devices seems to go in the same way.
Methods. In this paper a retrospective investigation is made on 118 renal biopsies performed at our Nephrology Unit from 1990 to 1999 with the semi-automated device “Biopty Bard” and with direct ultrasounds guidance. The number of post-biopsy complications have been evaluated.
Results. Any major complications (as surgical interventions and deaths) have been observed. The number of “minor” complications was low and in agreement with the literature data (post-biopsy macrohematuria = 6.8%, hemoglobin loss ≥20% = 0.8%, hematoma = 5.1%, lumbar pain 0.8%). The 98.4% of renal biopsies were diagnostic and 91.4% had a number of glomeruli ≥5.
Conclusions. The automated ultrasound-guided procedure is a feasible and reliable technique for percutaneous renal biopsy. It gives a greater yield of diagnostic tissue without increasing the rate of clinical complications, even in Nephrology Units, such as ours, that perform a small number of biopsies every years.

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