BACKGROUND: Ureteral stent placement at kidney transplantation may reduce stenosis or leakage (S/L) complication rates. However, stent placement may also increase risk for early urinary tract infection (early UTI; <3 months after transplant) and BK virus allograft nephropathy (BKVAN). In children, the usefulness of stent placement is not well defined. METHODS: We analyzed retrospective data from children transplanted at our center for the three above outcomes in relation to stents. At our center, stent placement decision is driven by surgeon preference. RESULTS: Among 129 transplants from 1996 to 2006, early UTI was seen in 9.3% and S/L in 4.6%. By univariate analyses, stent placement was a significant risk factor for early UTI (P=0.0399) but not protective for S/L (P=0.23). In multivariate analyses, stent placement, human leukocyte antigen match, and bladder augmentation increased the odds ratio for early UTI. Only deceased donor source increased the odds ratio for S/L. In a truncated data set from 1999 to 2006, BKVAN occurred in 9 of 93 (9.6%). Per minute increase in warm ischemia time was the only significant risk factor for BKVAN by both univariate and Cox regression analyses. Stent placement did not improve graft survival (P=0.5726) but required general anesthesia for removal in the operating room, leading to additional cost and potential risk. CONCLUSION: Routine stent placement in children in this era of low urological complication rates and BKVAN needs reevaluation.
BACKGROUND: Ureteral stent placement at kidney transplantation may reduce stenosis or leakage (S/L) complication rates. However, stent placement may also increase risk for early urinary tract infection (early UTI; <3 months after transplant) and BK virus allograft nephropathy (BKVAN). In children, the usefulness of stent placement is not well defined. METHODS: We analyzed retrospective data from children transplanted at our center for the three above outcomes in relation to stents. At our center, stent placement decision is driven by surgeon preference. RESULTS: Among 129 transplants from 1996 to 2006, early UTI was seen in 9.3% and S/L in 4.6%. By univariate analyses, stent placement was a significant risk factor for early UTI (P=0.0399) but not protective for S/L (P=0.23). In multivariate analyses, stent placement, human leukocyte antigen match, and bladder augmentation increased the odds ratio for early UTI. Only deceased donor source increased the odds ratio for S/L. In a truncated data set from 1999 to 2006, BKVAN occurred in 9 of 93 (9.6%). Per minute increase in warm ischemia time was the only significant risk factor for BKVAN by both univariate and Cox regression analyses. Stent placement did not improve graft survival (P=0.5726) but required general anesthesia for removal in the operating room, leading to additional cost and potential risk. CONCLUSION: Routine stent placement in children in this era of low urological complication rates and BKVAN needs reevaluation.
Authors: Joseph G Maliakkal; Daniel C Brennan; Charles Goss; Timothy A Horwedel; Howard Chen; Dennis K Fong; Nikhil Agarwal; Jie Zheng; Kenneth B Schechtman; Vikas R Dharnidharka Journal: Transpl Int Date: 2016-12-28 Impact factor: 3.782
Authors: Abhijit S Naik; Vikas R Dharnidharka; Mark A Schnitzler; Daniel C Brennan; Dorry L Segev; David Axelrod; Huiling Xiao; Lauren Kucirka; Jiajing Chen; Krista L Lentine Journal: Transpl Int Date: 2015-12-09 Impact factor: 3.782
Authors: Loes Oomen; Charlotte Bootsma-Robroeks; Elisabeth Cornelissen; Liesbeth de Wall; Wout Feitz Journal: Front Pediatr Date: 2022-04-08 Impact factor: 3.569