RESUMO
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Assuntos
Humanos , Feminino , Adulto , Lúpus Eritematoso Sistêmico/diagnóstico , Endocardite/diagnóstico , Anticoagulantes/uso terapêutico , Diagnóstico Diferencial , Insuficiência da Valva Aórtica/complicaçõesRESUMO
Antecedentes: La biopsia renal preimplante puede aportar información útil evolutiva postrasplante. Objetivo: Analizar el valor pronóstico de la biopsia renal de donantes de edad avanzada respecto al filtrado glomerular estimado MDRD-4 (FGe) al año del trasplante. Métodos: Estudiamos a 124 receptores de trasplante renal de donantes fallecidos de ≥60 años, con biopsia renal preimplante. Los trasplantes fueron realizados en nuestro centro, entre marzo del 2008 y mayo del 2012. Las biopsias se valoraron según el baremo propuesto por OValle et al. y se categorizaron en 3 grupos: 0-3, 4-5, 6-8 puntos. Se descartaron los riñones con una puntuación >8. El 77% de los donantes tenía ≥70 años. Resultados: El FGe medio (DE) del grupo 6-8 al año del trasplante: 38,5 (14,1) mL/min/1,73m2 fue menor que el del grupo 4-5: 46,3 (15,7) (p=0,03) y del grupo 0-3: 49,6 (12,5) (p=0,04). Se registraron 7 (19%) pacientes con FGe<30mL/min/1,73m2 en el grupo 6-8 vs. 8 (14%) en el grupo 4-5 y ninguno en el grupo 0-3 (p=0,17). En el análisis de regresión logística, OR (IC 95%), que valoró los pacientes con FGe<30mL/min/1,73m2 al año del trasplante, la función retrasada del injerto (6,3 [1,9-21,3]) y el rechazo agudo (5,8 [1,1-31]) fueron significativos. La puntuación del daño histológico de las biopsias, grupo 6-8 vs. 0-5, presentó un OR ajustado no significativo de 2,2 (0,7-7,3). Conclusiones: Los riñones con mayor afectación histológica presentaron un menor FGe al año del trasplante. La función renal retrasada del injerto y el rechazo fueron factores de riesgo significativos de un bajo FGe al año del trasplante (AU)
Background: Preimplantation renal biopsy provides potentially valuable information about post-transplant renal function. Objective: To assess the prognostic value of preimplantation kidney biopsy from older donors in determining 1-year post-transplant estimated glomerular filtration rate MDRD-4 (eGFR). Methods: We evaluated a cohort of 124 renal transplant recipients from deceased donors ≥60 years old, performed at our center between March 2008 and May 2012. Biopsies were assessed by applying the score proposed by OValle et al. The overall score was stratified into 3 levels: 0-3, 4-5 and 6-8 points. Kidneys scoring > 8 points were discarded. A total of 77% of the donors were ≥70 years. Results: One year post-transplant, mean eGFR (SD) was lower in transplant recipients with 6-8 points (38.5 [14.1] mL/min/1.73m2) than in the group scoring 4-5 points (46.3 [15.7] [p=0.03]) and the group scoring 0-3 (49.6 [12.5] [P=.04]). Seven patients (19%) had eGFR <30mL/min/1.73m2 1 year post-transplant in group 6-8 vs. 8 (14%) in group 4-5 and none in group 0-3. In the logistic regression, OR (95% IC), to determine patients with 1-year post-transplant eGFR (<30mL/min/1.73m2), delayed graft function (6.3 [1.9-21.3]) and acute rejection (5.8 [1.1-31]), were significant. The adjusted OR of biopsy score group 6-8 vs. 0-5, was 2.2 (0.7-7.3). Conclusions: Allografts with higher pathologic score in preimplantation renal biopsy were associated with a worse 1-year post-transplant eGFR. Delayed graft function and acute rejection were significant risk factors for 1-year post-transplant low eGFR (AU)
Assuntos
Humanos , Biópsia/estatística & dados numéricos , Transplante de Rim/estatística & dados numéricos , Função Retardada do Enxerto/epidemiologia , Rejeição de Enxerto/epidemiologia , Doadores de Tecidos/estatística & dados numéricos , 50293 , Prognóstico , Taxa de Filtração Glomerular , Fatores de RiscoRESUMO
BACKGROUND: Preimplantation renal biopsy provides potentially valuable information about post-transplant renal function. OBJECTIVE: To assess the prognostic value of preimplantation kidney biopsy from older donors in determining 1-year post-transplant estimated glomerular filtration rate MDRD-4 (eGFR). METHODS: We evaluated a cohort of 124 renal transplant recipients from deceased donors ≥60 years old, performed at our center between March 2008 and May 2012. Biopsies were assessed by applying the score proposed by O'Valle et al. The overall score was stratified into 3 levels: 0-3, 4-5 and 6-8 points. Kidneys scoring > 8 points were discarded. A total of 77% of the donors were ≥70 years. RESULTS: One year post-transplant, mean eGFR (SD) was lower in transplant recipients with 6-8 points (38.5 [14.1] mL/min/1.73m(2)) than in the group scoring 4-5 points (46.3 [15.7] [p=0.03]) and the group scoring 0-3 (49.6 [12.5] [P=.04]). Seven patients (19%) had eGFR <30mL/min/1.73m(2) 1 year post-transplant in group 6-8 vs. 8 (14%) in group 4-5 and none in group 0-3. In the logistic regression, OR (95% IC), to determine patients with 1-year post-transplant eGFR (<30mL/min/1.73m(2)), delayed graft function (6.3 [1.9-21.3]) and acute rejection (5.8 [1.1-31]), were significant. The adjusted OR of biopsy score group 6-8 vs. 0-5, was 2.2 (0.7-7.3). CONCLUSIONS: Allografts with higher pathologic score in preimplantation renal biopsy were associated with a worse 1-year post-transplant eGFR. Delayed graft function and acute rejection were significant risk factors for 1-year post-transplant low eGFR.
Assuntos
Biópsia , Sobrevivência de Enxerto , Transplante de Rim , Rim/patologia , Taxa de Filtração Glomerular , Rejeição de Enxerto , Humanos , Prognóstico , Estudos Retrospectivos , Fatores de Tempo , Doadores de Tecidos , Resultado do TratamentoRESUMO
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