Effects of intravenous iron therapy on mortality and hospitalization of hemodialysis patients: A prospective cohort study in Korea.

Published on Aug 23, 2021in Clinical Nephrology0.991
· DOI :10.5414/CN110042
Hyunjin Ryu , Jung Pyo Lee21
Estimated H-index: 21
+ 7 AuthorsChun Soo Lim24
Estimated H-index: 24
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Abstract
Iron replacement therapy is necessary for anemia treatment in patients with advanced chronic kidney disease. Intravenous (IV) iron therapy is an efficient method for iron replacement. However, there are concerns regarding its considerable side effects, including increased risks of infection or major adverse cardiovascular events (MACE). This is a longitudinal study from a multicenter prospective cohort study conducted in the Korean end-stage renal disease population. All-cause mortality, death due to infection or MACE, hospitalization due to infection or MACE, and all adverse event of death or hospitalization due to infection or MACE were compared according to the iron replacement methods during the first 3 months of enrollment. Among 1,680 hemodialysis patients, 29.3% of patients received IV iron therapy, and 38% of patients received oral iron therapy. During the median 632 days follow-up, all-cause mortality, mortality or hospitalization due to infection or MACE, and all adverse events did not differ among iron replacement groups. There were significant differences related to the risk of all adverse events among iron replacement therapies in the log-rank test and univariate Cox regression analysis only in the prevalent dialysis patients; however, the significance was lost in multivariate Cox regression analysis. Similar results were observed in the 1-year short-term outcome analysis. High-dose IV iron did not increase adverse outcomes. All-cause mortality or all adverse events due to infection or MACE were not higher with the current clinical regimen of IV iron replacement therapy than with oral or no iron therapy in Korean hemodialysis patients.
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