224 M. KESSLERDans une étude prospective longitudinale réalisée chez 123 <strong>pati<strong>en</strong>t</strong>s suivisp<strong>en</strong>dant 1 an, nous avons montré que le taux de ferritine est élevé au mom<strong>en</strong>t dela greffe (407 ± 642 µg/l) et qu’il diminue de façon rapide pour atteindre 123 ±263 µg/l à 1 an, le taux d’Hb passant de 10,3 ± 2 à 12,3 ± 1,5 g/dl, ce qui suggèreune bonne utilisation <strong>du</strong> fer pour l’érythropoïèse [59]. La supplém<strong>en</strong>tation <strong>martial</strong>edoit être faite avec précaution, <strong>en</strong> particulier au cours de la première année quisuit la greffe. L’apparition d’une car<strong>en</strong>ce <strong>martial</strong>e peut tra<strong>du</strong>ire une érythropoïèseaccélérée annonçant le développem<strong>en</strong>t d’une polyglobulie et dans ce cas l’administrationde fer peut aboutir à une augm<strong>en</strong>tation explosive de l’hématocrite [60].Dans une étude prospective destinée à évaluer la préval<strong>en</strong>ce de la polyglobuliesurv<strong>en</strong>ant après transplantation <strong>rénale</strong>, nous avons montré que 44 p. 100 des<strong>pati<strong>en</strong>t</strong>s dev<strong>en</strong>us polyglobuliques avai<strong>en</strong>t reçus <strong>du</strong> fer alors qu’aucun des <strong>pati<strong>en</strong>t</strong>snormocythémiques n’<strong>en</strong> avai<strong>en</strong>t reçu [61]. Nous suggérons donc de ne pas traiterune car<strong>en</strong>ce <strong>martial</strong>e apparaissant chez le transplanté lorsque le taux d’Hb augm<strong>en</strong>tede façon régulière.BIBLIOGRAPHIE1. ESCHBACH JW. The anemia of chronic r<strong>en</strong>al failure : pathophysiology and the effects of recombinanterythropoietin. Kidney Int, 1989, 35, 134-148.2. ESCHBACH JW, EGRIE JC, DOWNING MR et al. Correction of the anemia of <strong>en</strong>d-stage r<strong>en</strong>al diseasewith recombinant human erythropoietin : results of a combined phase I and phase II clinical trial.N Engl J Med, 1987, 316, 73-78.3. EDWARDS MS, PEGRUM GD, CURTIS JR. Iron therapy in <strong>pati<strong>en</strong>t</strong>s on maint<strong>en</strong>ance haemodialysis.Lancet, 1970, 5, 491-493.4. ESCHBACH JW, COOK JD, SCRIBNER BH et al. Iron balance in hemodialysis <strong>pati<strong>en</strong>t</strong>s. Ann InternMed, 1977, 87, 710-713.5. FUDIN R, JAICHENKO J, SHOSTAK A et al. Correction of uremic iron defici<strong>en</strong>cy anemia in hemodialyzed<strong>pati<strong>en</strong>t</strong>s : a prospective study. Nephron, 1998, 79, 299-305.6. FINCH CA, BELLOTI V, STRAY S et al. Plasma ferritin determination of a diagnostic tool. West JMed, 1986, 145, 657-663.7. MACDOUGALL IC, CAVILL I, HULME B et al. Detection of functional iron defici<strong>en</strong>cy <strong>du</strong>ring erythropoietintreatm<strong>en</strong>t : a new approach. Br Med J, 1992, 304, 225-226.8. CAVILL I. Disorders of iron metabolism. Diagnostic methods. Clin Haematol, 1982, 11, 259-275.9. ROSENBERG ME. Role of transferrin measurem<strong>en</strong>t in monitoring iron status <strong>du</strong>ring recombinanthuman erythropoietin therapy. Dial Transplant, 1992, 2, 81-90.10. BRAUN J, LINDNER K, SCHREIBER M et al. Perc<strong>en</strong>tage of hypochromic red blood cells as a predictorof erythropoietic and iron response after IV iron supplem<strong>en</strong>tation in maint<strong>en</strong>ance haemodialysis<strong>pati<strong>en</strong>t</strong>s. Nephrol Dial Transplant, 1997, 12, 1173-1181.11. SCHAEFER RM, SCHAEFER L. The hypochronic red cell : a new parameter for monitoring of ironsupplem<strong>en</strong>tation <strong>du</strong>ring rhEPO therapy. J Perinat Med, 1995, 23, 83-88.12. FISHBANE S, SHAPIRO W, DUTKA P et al. A randomized trial of iron defici<strong>en</strong>cy testing strategies inhemodialysis <strong>pati<strong>en</strong>t</strong>s. Kidney Int, 2001, 60, 2406-2411.13. FISHBANE S, GALGANO C, LANGLEY RC et al. Reticulocytes hemoglobin cont<strong>en</strong>t in the evaluationof iron status of hemodialysis <strong>pati<strong>en</strong>t</strong>s. Kidney Int, 1997, 52, 217-222.14. MITTMAN N, SREEDHARA R, MUSHNISK R. Reticulocyte hemoglobin cont<strong>en</strong>t predicts functionaliron defici<strong>en</strong>cy in hemodialysis <strong>pati<strong>en</strong>t</strong>s receiving rHuEPO. Am J Kidney Dis, 1997, 30, 912-922.15. SILVA J, ANDRADE S, VENTURA H et al. Iron supplem<strong>en</strong>tation in haemodialysis. Practical clinicalguidelines. Nephrol Dial Transplant, 1998, 13, 2572-2577.
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