移植肾穿刺活检在肾移植术后的临床应用

目的 :探讨移植肾活检在肾移植术后的临床应用价值 .方法 :3 4 (男 2 8,女 6)例均为同种异体肾移植患者 ,平均年龄 3 4 6岁 (18～ 5 2岁 ) ,其中 2 0例术后尿素氮和肌酐正常 ,10例临床诊断为急性排斥反应 ,4例为肾功能延迟恢复 .分别在彩色B超 (2 6例 )和CT引导 (8例 )下行移植肾活检 .结果 :3 4例患者共行穿刺 3 7人次 .一次穿刺成功率为 :B超 89% ,CT 10 0 % .2例术后出现轻度肉眼血尿 ,余无其他并发症 .B超组 (n =2 9)与CT组 (n =8)比较 ,肾小球数 :(13 9± 3 2 )vs(11 1± 4 7) ;动脉数 :(2 6± 0 7)vs (2 1± 1 1) ;不合格标本 :3 (10 3 % )vs 0 ;穿刺时间 :(1.0± 0 5 )minvs(5 0± 1 0 )min(P <0 .0 1) .根据Banff97分类 :肾功正常组 (n =2 0 )中 18例为正常 ,2例为临界改变 .临床诊断为急性排斥反应 (n =10 ) ,急性排斥反应为 7例 ,其中IA2例 ,ⅡA 3例 ,ⅡB 1例 ,Ⅲ 1例 .2例为环孢素A中毒 ,1例为急性肾小管坏死 .肾功能延迟恢复组 (n =4 )中 2例为急性肾小管坏死 ,1例为环孢素A中毒 ,1例为急性肾小管坏死合并急性排斥反应 .临床诊断正确率为 73 5 % .结论 :移植肾穿刺活检能够及时准确地对肾移植术后肾功能异常者进行诊断和疗效判断 .CT介导移植肾活检的穿刺标本质量优于B超

Diagnosis of the status of renal allograft by using renal graft biopsy

AIM: To ascertain the value and importance of renal graft biopsy in the evaluation of renal allograft function. METHODS: Thirty four cases of renal allograft recipients were included in this study. There were 28 male cases and 6 female cases. The patients were aged from 18 to 52 with a mean age of 34 6. After transplantation, 20 cases had normal BUN (blood urea nitrogen) and Cr (creatinine), 10 cases were clinically diagnosed as acute rejection and 4 cases as delayed graft function. Of the 34 cases of renal biopsis (RB), 26 were conducted under the real time ultrasound and 8 cases under CT, respectively. RESULTS: Biopsy was conducted in all the 34 cases and the success rate of puncture under ultrasound guided was 89%, while under CT was 100%. Compared with pathological diagnosis, the correct rate of the clinical diagnosis was 73 5%. CONCLUSION: Renal graft biopsy provides reliable indexes in the evaluation of renal allograft function. CT guided puncture has a high success rate than ultrasound guided puncture.