Effect of puncture needles with different diameter on percutaneous biopsy for transplant kidney under ultrasound guidance

  Objective  To compare the effect of puncture needles with different diameter on percutaneous biopsy for transplant kidney under ultrasound guidance.

  Methods  A total of 82 cases underwent percutaneous renal biopsy for transplant kidney under ultrasound guidance, and were divided into two groups based on the diameters of puncture needles, Group 18 G (n=31) and Group 16 G (n=51). The effect of biopsy and complications were compared between the two groups.

  Results  Compared with Group18 G, Group16 G used less puncture needles and obtained more glomeruli (both P＜0.01). The qualified rate of renal specimens in Group 16 G was significantly higher than that of Group 18 G(P＜0.05). There was no significant difference in postoperative complications between the two groups (P＞0.05). Further stratified comparison was conducted, and the results showed that complications of the two groups were not statistically significant in case of puncture with 2 needles or 3 needles (both P＞0.05).

  Conclusions   There is similar safety of 16 G puncture needle and 18 G puncture needle to perform renal biopsies under ultrasound guidance. Under the allowable condition of patients, 16 G puncture needle is superior to 18 G puncture needle and realizes high quality of renal specimens.