Transplantation proceedings · 2022
Impact of Prolonged Cold Ischemia Time on One Year Kidney Transplant Outcomes.
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Fletchinger Teresa, Jensen Hanna K, Wells Allison, Giorgakis Emmanouil, Patel Raj B, Barone Gary W, Khan Nasir, Burdine Marie, Sharma Aparna, Bhusal Sushma, Burdine Lyle
Аннотация
BACKGROUND: Prolonged cold ischemia times (CIT) of kidney allografts remains a significant reason for graft refusal in the new allocation system. We sought to investigate the effect of prolonged CIT on kidney transplant outcomes at a center without an international airport.
METHODS: Retrospective study of kidney transplant patients treated at an academic medical center from January 1, 2018 to May 1, 2020. The 117 patients were divided into 2 categories. Fifty-four patients (46%) had CIT of 30-35.99 hours, and 63 (54%) had CIT of 36± hours. Kidney function was evaluated using creatinine and at 12 months, which was the primary endpoint.
RESULTS: All of the transplanted allografts were carefully selected and had ≤ 20% glomerulosclerosis and an average kidney donor profile index of 54%. Among the 117 patients analyzed in this study, there was no significant difference in creatinine at 12 months between groups with CIT above 36 hours and < 35.99 hours (2.07 vs 1.78; P value .2339). There were a total of 18 rejection events (15%) and no cases of primary non-function in either group. Patients that were able to be maintained on calcineurin inhibitors had improved graft function at 12 months (1.69 vs 2.96; P value .0267).
CONCLUSIONS: Our study indicated that prolonged CITs over 36 hours were not associated with poorer patient outcomes at 1 year when using creatinine as an endpoint. They also had similar rates of rejection, consistent with previously published rates for kidney transplantation.
METHODS: Retrospective study of kidney transplant patients treated at an academic medical center from January 1, 2018 to May 1, 2020. The 117 patients were divided into 2 categories. Fifty-four patients (46%) had CIT of 30-35.99 hours, and 63 (54%) had CIT of 36± hours. Kidney function was evaluated using creatinine and at 12 months, which was the primary endpoint.
RESULTS: All of the transplanted allografts were carefully selected and had ≤ 20% glomerulosclerosis and an average kidney donor profile index of 54%. Among the 117 patients analyzed in this study, there was no significant difference in creatinine at 12 months between groups with CIT above 36 hours and < 35.99 hours (2.07 vs 1.78; P value .2339). There were a total of 18 rejection events (15%) and no cases of primary non-function in either group. Patients that were able to be maintained on calcineurin inhibitors had improved graft function at 12 months (1.69 vs 2.96; P value .0267).
CONCLUSIONS: Our study indicated that prolonged CITs over 36 hours were not associated with poorer patient outcomes at 1 year when using creatinine as an endpoint. They also had similar rates of rejection, consistent with previously published rates for kidney transplantation.