Validación del test de aclaramiento del verde de indocianina como predictor de descarte del injerto en los donantes hepáticos en muerte encefálica : estudio multicéntrico nacional
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2026
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19/03/2025
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Universidad Complutense de Madrid
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El 30% de los injertos hepáticos de donantes en muerte encefálica (DME) en España se descartan por mala calidad tras la valoración presencial del cirujano extractor. Ningún dato demográfico, clínico, analítico o radiológico del donante, conocido antes de la donación, puede, por si solo y de manera inequívoca, predecir el descarte del injerto hepático. Un valor bajo de aclaramiento de verde de indocianina (ICG-PDR), medido en los donantes antes de la extracción, se ha asociado, en estudios previos, a disfunción del injerto una vez trasplantado y al descarte del órgano por parte del cirujano trasplantador. El objetivo principal de este estudio es de validar interna y externamente el ICG-PDR como medida para predecir la no validez de los injertos hepáticos y establecer un nivel de corte adecuado para evitar perder órganos potencialmente válidos. Los objetivos secundarios son de evaluar la correlación entre el ICG-PDR de los donantes y la presencia de alteraciones histológicas de los injertos rechazados y, en los injertos implantados, de valorar si existe una asociación del aclaramiento de ICG del donantes con las disfunción precoz del injerto, la pérdida del injerto al mes del trasplante o el desarrollo de colangiopatía. Además, se ha estudiado la variación de aclaramiento del ICG entre el momento de la donación hasta el momento sucesivo al implante...
Thirty percent of liver grafts from donors after brain dead (DBD) in Spain are discarded due to poor quality, detected by direct assessment of the procurement surgeon. None of the demographic, clinical, analytical or radiological data of the donor, known before donation, can, on its own and unequivocally, predict the discarding of the liver graft.A low indocyanine green clearance value (ICG-PDR), measured in donors before procurement, has been associated, in previous studies, with graft dysfunction after transplantation and with organ discard by the transplant surgeon.The main objective of this study was to internally and externally validate the ICG-PDR as a tool to predict the unsuitability of liver graft and to establish an appropriate cut-off level to avoid missing potentially valid organs.Secondary objectives were to evaluate the correlation between the donor's ICG-PDR and the presence of histological alterations in the rejected grafts and, in the implanted grafts, to assess the possible association of the donor's ICG clearance with early allograft dysfunction (EAD), one month graft’s loss, and the development of cholangiopathy. Furthermore, the variation in ICG clearance from donor (T0) to recipient has been studied (T1)...
Thirty percent of liver grafts from donors after brain dead (DBD) in Spain are discarded due to poor quality, detected by direct assessment of the procurement surgeon. None of the demographic, clinical, analytical or radiological data of the donor, known before donation, can, on its own and unequivocally, predict the discarding of the liver graft.A low indocyanine green clearance value (ICG-PDR), measured in donors before procurement, has been associated, in previous studies, with graft dysfunction after transplantation and with organ discard by the transplant surgeon.The main objective of this study was to internally and externally validate the ICG-PDR as a tool to predict the unsuitability of liver graft and to establish an appropriate cut-off level to avoid missing potentially valid organs.Secondary objectives were to evaluate the correlation between the donor's ICG-PDR and the presence of histological alterations in the rejected grafts and, in the implanted grafts, to assess the possible association of the donor's ICG clearance with early allograft dysfunction (EAD), one month graft’s loss, and the development of cholangiopathy. Furthermore, the variation in ICG clearance from donor (T0) to recipient has been studied (T1)...
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Tesis inédita de la Universidad Complutense de Madrid, Facultad de Medicina, leída el 19-03-2025











