Intravenous iron therapy can improve symptoms in patients with heart failure, anaemia and iron deficiency. The mechanisms underlying such an improvement might involve chemoreflex sensing and nocturnal breathing patterns.
Reference: Intravenous iron therapy improves the hypercapnic ventilatory response and sleep disordered breathing in chronic heart failure. Caravita S, Faini A, Vignati C, Pelucchi S, Salvioni E, Cattadori G, Baratto C, Torlasco C, Contini M, Villani A, Malfatto G, Perger E, Lombardi C, Piperno A, Agostoni P, Parati G. Eur J Heart Fail. 2022 Jul 22.