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  • Title: Renal biopsy in children: comparison of two techniques.
    Author: Webb NJ, Pereira JK, Chait PG, Geary DF.
    Journal: Pediatr Nephrol; 1994 Aug; 8(4):486-8. PubMed ID: 7947044.
    Abstract:
    Two hundred and thirty-five children who underwent percutaneous renal biopsy under real-time ultrasound guidance at The Hospital for Sick Children, between 1 January 1991 and 31 March 1993, were studied to compare the incidence of complications after biopsies with the Trucut needle (TN) and the Bard Biopty gun (BG). Of the 190 cases for which full clinical details were available and in which a single instrument was used for renal biopsy, 157 were biopsied with the BG and 33 with the TN. There was no significant difference between the two groups in variables such as age, weight, sex, number of needle passes and number of tissue cores obtained. The proportion of native and allograft biopsies in each group was similar. More children in the TN group underwent biopsy under general anaesthesia. Adequate diagnostic tissue samples were obtained in 189 of 190 cases. There were more complications in the TN group than in the BG group (P < 0.001). When allograft and native kidney biopsies were analysed separately, this difference in complications remained highly significant for the native kidney group (P < 0.005), though not for the allograft group. When the effect of needle size alone was investigated, there was no significant difference in the incidence of complications when TN biopsies were compared with 14-gauge BG biopsies or when 14- and 18-gauge BG biopsies were compared with each other.
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