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      Impacto de la perfusión hipotérmica pulsativa en el injerto renal de donante subóptimo: nuestra experiencia inicial Translated title: Impact of hypothermic pulsatile perfusion on the suboptimal kidney donors: our initial experience

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          Abstract

          Resumen Objetivo: Estudios recientes han demostrado que el mantenimiento de la viabilidad de riñones con criterios expandidos durante su preservación sea un reto. La máquina de perfusión hipotérmica pretende mitigar el efecto del almacenamiento en frío sobre la calidad del órgano cuando el tiempo de isquemia fría es prolongada o el donante subóptimo. Objetivo: Evaluar las complicaciones que presentan los pacientes trasplantados renales con preservación estática fría o perfusión hipotérmica pulsátil. Material y Método: Estudio observacional retrospectivo durante 2010-2012 donde se incluyeron todos los trasplantes renales realizados en un hospital de tercer nivel. Las variables de estudio: estancia hospitalaria, horas de isquemia, necesidad de diálisis y número de sesiones post trasplante y el dispositivo de almacenamiento, edad y patologías asociadas al donante. Resultados: Se realizaron 175 trasplantes donde 70 procedieron de donantes ≥65 años. Se perfundieron en máquina 30 riñones y en 40 se utilizó la preservación estática. Nuestros hallazgos respecto al uso de la máquina de perfusión conllevan un descenso en la estancia media hospitalaria y una menor necesidad de hemodiálisis postrasplante. Conclusiones: Debido al alto porcentaje de órganos procedentes de donantes de edad avanzada y difíciles de preservar, resulta fundamental buscar técnicas de perfusión intravascular continua para una preservación más efectiva del órgano.

          Translated abstract

          Abstract Introduction: Recent studies have shown that maintaining kidney viability with expanded criteria during preservation is a challenge. The hypothermic infusion machine aims to mitigate the effect of cold storage on the quality of the organ when the time of cold ischemia is prolonged or the donor is suboptimal. Objective: To evaluate the complications presented by renal transplanted patients with cold static preservation or hypothermic pulsatile perfusion. Material and Method: Retrospective observational study during 2010-2012, including all kidney transplant patients in a third level hospital. The study variables: length of stay, hours of ischemia, need for dialysis and number of post-transplant sessions and the storage device, age and pathologies associated with the donor. Results: 175 transplants were performed, 70 of which were donors ≥65 years old. 30 kidneys were perfused in a machine and static preservation was used in 40. Our findings regarding the use of the infusion machine lead to a decrease in the average length of stay and a reduced need for post-transplant hemodialysis. Conclusions: Due to the high percentage of organs difficult to preserve and from elderly donors, it is essential to seek continuous intravascular perfusion techniques for a more effective preservation of the organ.

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          Most cited references21

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          Machine perfusion or cold storage in deceased-donor kidney transplantation.

          Static cold storage is generally used to preserve kidney allografts from deceased donors. Hypothermic machine perfusion may improve outcomes after transplantation, but few sufficiently powered prospective studies have addressed this possibility. In this international randomized, controlled trial, we randomly assigned one kidney from 336 consecutive deceased donors to machine perfusion and the other to cold storage. All 672 recipients were followed for 1 year. The primary end point was delayed graft function (requiring dialysis in the first week after transplantation). Secondary end points were the duration of delayed graft function, delayed graft function defined by the rate of the decrease in the serum creatinine level, primary nonfunction, the serum creatinine level and clearance, acute rejection, toxicity of the calcineurin inhibitor, the length of hospital stay, and allograft and patient survival. Machine perfusion significantly reduced the risk of delayed graft function. Delayed graft function developed in 70 patients in the machine-perfusion group versus 89 in the cold-storage group (adjusted odds ratio, 0.57; P=0.01). Machine perfusion also significantly improved the rate of the decrease in the serum creatinine level and reduced the duration of delayed graft function. Machine perfusion was associated with lower serum creatinine levels during the first 2 weeks after transplantation and a reduced risk of graft failure (hazard ratio, 0.52; P=0.03). One-year allograft survival was superior in the machine-perfusion group (94% vs. 90%, P=0.04). No significant differences were observed for the other secondary end points. No serious adverse events were directly attributable to machine perfusion. Hypothermic machine perfusion was associated with a reduced risk of delayed graft function and improved graft survival in the first year after transplantation. (Current Controlled Trials number, ISRCTN83876362.) 2009 Massachusetts Medical Society
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            Renal transplantation in elderly patients older than 70 years of age: results from the Scientific Registry of Transplant Recipients.

            Elderly patients (ages 70 yr and older) are among the fastest-growing group starting renal-replacement therapy in the United States. The outcomes of elderly patients who receive a kidney transplant have not been well studied compared with those of their peers on the waiting list. Using the Scientific Registry of Transplant Recipients, we analyzed data from 5667 elderly renal transplant candidates who initially were wait-listed from January 1, 1990 to December 31, 2004. Of these candidates, 2078 received a deceased donor transplant, and 360 received a living donor transplant by 31 December 2005. Time-to-death was studied using Cox regression models with transplant as a time-dependent covariate. Mortality hazard ratios (RRs) of transplant versus waiting list were adjusted for recipient age, sex, race, ethnicity, blood type, panel reactive antibody, year of placement on the waiting list, dialysis modality, comorbidities, donation service area, and time from first dialysis to first placement on the waiting list. Elderly transplant recipients had a 41% lower overall risk of death compared with wait-listed candidates (RR=0.59; P<0.0001). Recipients of nonstandard, that is, expanded criteria donor, kidneys also had a significantly lower mortality risk (RR=0.75; P<0.0001). Elderly patients with diabetes and those with hypertension as a cause of end-stage renal disease also experienced a large benefit. Transplantation offers a significant reduction in mortality compared with dialysis in the wait-listed elderly population with end-stage renal disease.
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              Machine perfusion versus cold storage for preservation of kidneys from expanded criteria donors after brain death.

              The purpose of this study was to analyze the possible effects of machine perfusion (MP) versus cold storage (CS) on delayed graft function (DGF) and early graft survival in expanded criteria donor kidneys (ECD). As part of the previously reported international randomized controlled trial 91 consecutive heart-beating deceased ECDs--defined according to the United Network of Organ Sharing definition--were included in the study. From each donor one kidney was randomized to MP and the contralateral kidney to CS. All recipients were followed for 1 year. The primary endpoint was DGF. Secondary endpoints included primary nonfunction and graft survival. DGF occurred in 27 patients in the CS group (29.7%) and in 20 patients in the MP group (22%). Using the logistic regression model MP significantly reduced the risk of DGF compared with CS (OR 0.460, P=0.047). The incidence of nonfunction in the CS group (12%) was four times higher than in the MP group (3%) (P=0.04). One-year graft survival was significantly higher in machine perfused kidneys compared with cold stored kidneys (92.3% vs. 80.2%, P=0.02). In the present study, MP preservation clearly reduced the risk of DGF and improved 1-year graft survival and function in ECD kidneys. (Current Controlled Trials number: ISRCTN83876362). © 2011 The Authors. Transplant International © 2011 European Society for Organ Transplantation.
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                Author and article information

                Journal
                enefro
                Enfermería Nefrológica
                Enferm Nefrol
                Sociedad Española de Enfermería Nefrológica (Madrid, Madrid, Spain )
                2254-2884
                2255-3517
                March 2020
                : 23
                : 1
                : 60-66
                Affiliations
                [2] orgnameHospital Universitario de Bellvitge orgdiv1Departamento de Nefrología Spain
                [1] orgnameHospital Universitario de Bellvitge orgdiv1Departamento Extracción Multiorgánica y Trasplante Renal Spain
                Article
                S2254-28842020000100060 S2254-2884(20)02300100060
                10.37551/s2254-28842020007
                d0d75205-e260-4087-8f02-332a47adbb98

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

                History
                : 15 December 2019
                : 04 January 2019
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 27, Pages: 7
                Product

                SciELO Spain

                Categories
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                hypothermic pulsatile perfusion,renal graft,injerto renal,renal transplantation,trasplante renal,perfusión hipotérmica pulsátil

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