Yield and complications in percutaneous renal biopsy. A comparison between ultrasound-guided gun-biopsy and manual techniques in native and transplant kidneys.
OBJECTIVE
To compare the yield and complications of ultrasound-guided gun-biopsy and manual Tru-Cut techniques in percutaneous renal biopsy.


METHODS
A total of 448 biopsies were reviewed. They comprised 124 manual and 131 gun-biopsies in native kidneys, and 111 manual and 82 gun-biopsies in transplant kidneys. The gun-biopsies were performed under real-time ultrasound (US) guidance. The manual technique used US mainly for marking the position of the kidney.


RESULTS
There was a significantly higher diagnostic yield and fewer complications in the gun-biopsy group. A total of 8 major complications were found, all in the manual group.


CONCLUSIONS
Provided that the operator is experienced in US scanning, a switch from the manual technique to real-time US-guided gun-biopsy will result in the improvement of diagnostic accuracy together with a reduced risk of complications.
Nyman
R S
RS
Department of Radiology, King Faisal Specialist Hospital and Research Centre, Riyadh, Kingdom of Saudia Arabia.
Cappelen-Smith
J
J
al Suhaibani
H
H
Alfurayh
O
O
Shakweer
W
W
Akhtar
M
M
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001164:Arteriovenous Fistula / Q000209:etiology; D001707:Biopsy, Needle / Q000009:adverse effects / Q000379:methods*; D001803:Blood Transfusion; D002648:Child; D002675:Child, Preschool; D005260:Female; D006406:Hematoma / Q000209:etiology; D006417:Hematuria / Q000209:etiology; D006801:Humans; D007223:Infant; D007668:Kidney / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D007678:Kidney Glomerulus / Q000473:pathology; D016030:Kidney Transplantation / Q000000981:diagnostic imaging / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D009403:Nephrostomy, Percutaneous; D012307:Risk Factors; D007507:Therapeutic Irrigation; D018084:Ultrasonography, Interventional / Q000009:adverse effects; D001743:Urinary Bladder / Q000293:injuries