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Iron metabolism imbalance at the time of listing increases overall and infectious mortality after liver transplantation

查看全文 作　　者：Elodie [1]Fallet;Michel [2]Rayar;Amandine [1]Landrieux;Christophe [3]Camus;Pauline Houssel-[1,2]Debry;Caroline [1]Jezequel;Ludivine [1]Legros;Thomas [1]Uguen;Martine Ropert-[4]Bouchet;Karim [2]Boudjema;Dominique [1]Guyader;Edouard Bardou-[1]Jacquet 高影响力作者 机构地区：[1]Service des Maladies du Foie,CHU Rennes,University Rennes,Rennes 35033,France;[2]Service de Chirurgie Hepatobilaire,CHU Rennes,University Rennes,Rennes 35033,France;[3]Service de Réanimation médicale,CHU Rennes,University Rennes,Rennes 35033,France;[4]Laboratoire de biochimie,CHU Rennes,University Rennes,Rennes 35033,France高影响力机构 出　　处：《World Journal of Gastroenterology》索引2020年第26卷第16期,共12页高影响力期刊 摘　　要：BACKGROUND Liver transplantation(LT)is the best treatment for patients with liver cancer or end stage cirrhosis,but it is still associated with a significant mortality.Therefore identifying factors associated with mortality could help improve patient management.The impact of iron metabolism,which could be a relevant therapeutic target,yield discrepant results in this setting.Previous studies suggest that increased serum ferritin is associated with higher mortality.Surprisingly iron deficiency which is a well described risk factor in critically ill patients has not been considered.AIM To assess the impact of pre-transplant iron metabolism parameters on posttransplant survival.METHODS From 2001 to 2011,553 patients who underwent LT with iron metabolism parameters available at LT evaluation were included.Data were prospectively recorded at the time of evaluation and at the time of LT regarding donor and recipient.Serum ferritin(SF)and transferrin saturation(TS)were studied as continuous and categorical variable.Cox regression analysis was used to determine mortality risks factors.Follow-up data were obtained from the local and national database regarding causes of death.RESULTS At the end of a 95-mo median follow-up,196 patients were dead,38 of them because of infections.In multivariate analysis,overall mortality was significantly associated with TS>75%[HR:1.73(1.14;2.63)],SF<100μg/L[HR:1.62(1.12;2.35)],hepatocellular carcinoma[HR:1.58(1.15;2.26)],estimated glomerular filtration rate(CKD EPI Cystatin C)[HR:0.99(0.98;0.99)],and packed red blood cell transfusion[HR:1.05(1.03;1.08)].Kaplan Meier curves show that patients with low SF(<100μg/L)or high SF(>400μg/L)have lower survival rates at 36 mo than patients with normal SF(P=0.008 and P=0.016 respectively).Patients with TS higher than 75%had higher mortality at 12 mo(91.4%±1.4%vs 84.6%±3.1%,P=0.039).TS>75%was significantly associated with infection related death[HR:3.06(1.13;8.23)].CONCLUSION Our results show that iron metabolism imbalance(either deficiency or overload)is associated with post-transplant overall and infectious mortality.Impact of iron supplementation or depletion should be assessed in prospective study. 关 键 词：Iron deficiency OVERLOAD Cirrhosis Infection Death FERRITIN TRANSFERRIN saturation
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