不同直径穿刺针对超声引导下经皮移植肾活检的影响

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

目的比较在超声引导下应用不同直径穿刺针行经皮移植肾活组织检查(活检)的效果。方法接受超声引导下经皮移植肾穿刺活检的患者82例,按所用穿刺针直径将其分成两组,18 G组(31例)和16 G组(51例)。比较两组活检效果及并发症的发生情况。结果与18 G组比较,16 G组的穿刺针数较少,且取得的肾小球数量较多(均为P<0.01)。16 G组的取材合格率明显高于18 G组(P<0.05)。两组患者术后并发症发生率比较差异无统计学意义(P>0.05)。进一步分层比较,同为2针或3针穿刺时,两组的并发症发生率比较差异亦无统计学意义(均为P>0.05)。结论在超声引导下行移植肾穿刺活检,采用16 G穿刺针和18 G穿刺针穿刺的安全性相近。在患者病情的允许下,采用16 G穿刺针较18 G穿刺针更具有优势,肾取材标本的质量较高。

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.