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Adequacy and Complication Rates with 14‐ vs. 16‐gauge Automated Needles in Percutaneous Renal Biopsy of Native Kidneys
Author(s) -
Chunduri Svetha,
Whittier William L.,
Korbet Stephen M.
Publication year - 2014
Publication title -
seminars in dialysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.899
H-Index - 78
eISSN - 1525-139X
pISSN - 0894-0959
DOI - 10.1111/sdi.12332
Subject(s) - medicine , percutaneous , complication , percutaneous biopsy , biopsy , radiology , urology , surgery
In performing percutaneous renal biopsy ( PRB ) of native kidneys, an increasing use of 16‐gauge automated biopsy needles has been observed. We compare the adequacy and safety of PRB s in adults performed with a 14‐gauge ( n = 82) vs. 16‐gauge ( n = 55) automated needle using real‐time ultrasound ( US ) from 1/2010 to 12/2013. Baseline clinical and laboratory data along with outcome data (renal US 1‐hour postbiopsy, biopsy adequacy, and safety) were collected prospectively. There was no difference in age, gender, blood pressure, serum creatinine, or pre‐ PRB hemoglobin at baseline for PRB s performed with a 14‐ vs. 16‐gauge needle. The number of glomeruli obtained per biopsy was similar (29 ± 11 vs. 31 ± 14, p = 0.6) and adequate tissue for diagnosis was obtained in 99% and 100% of biopsies. The clinical complication (8.5% vs. 9.1%, p = 1.0), transfusion (7.3% vs. 7.2%, p = 1.0), and embolization (3.7% vs. 1.8%, p = 0.6) rates were not significantly different for 14‐ vs. 16‐gauge needles, but by routine renal US 1‐hour post‐ PRB , a perinephric hematoma was demonstrated more often in biopsies done with the 14‐gauge needle (39% vs. 22%, P 0.04). Thus, while the success of PRB of native kidneys is similar for both needle gauges, the potential for complication may be less using a 16‐gauge automated needle.