Quality -of-life scores ( Piper Fatigue Scale MD 0.73 , 95 % CI 0.29 to 1.18 ; I2 = 0 % ; studies = 3 ) and peak oxygen consumption ( MD 2.77 mL/kg/min , 95 % CI -0.89 to 6.43 ; I2 = 36 % ; 2 studies , 32 participants ) were associated with very low- quality evidence , and we remain uncertain about the role of intravenous iron for these metrics .
Current evidence is insufficient to show benefit of intravenous iron preparations for the treatment of non-anaemic iron deficiency across a variety of patient population s , beyond stating that it may result in a small , clinical ly insignificant increase in haemoglobin concentration .
BACKGROUND Iron deficiency is one of the most common nutritional deficiencies , and has a number of physiological manifestations .
Early , or non-anaemic iron deficiency can result in fatigue and diminished exercise capacity .
Oral iron preparations have a high incidence of intolerable side effects , and are ineffective in certain forms of iron deficiency .
Consequently , intravenous iron preparations are increasingly used in the treatment of non-anaemic iron deficiency .
The newer , more stable iron preparations in particular purport to have a lower incidence of side effects , and are now used across a range of different patient population s. OBJECTIVES To assess the effects of intravenous iron therapy in the treatment of adults with non-anaemic iron deficiency .
IRON-HF study: a randomized trial to assess the effects of iron in heart failure patients with anemia.
BACKGROUND Anemia in heart failure patients and has been associated with increased morbi-mortality . Previous studies have treated anemia in heart failure patients with either erythropoietin alone or combination of erythropoietin and intravenous ( i.v . ) iron . However , the effect of i.v . or oral ( p.o . ) iron supplementation alone in heart failure patients with anemia was virtually unknown . AIM To compare , in a double-blind design , the effects of i.v . iron versus p.o . iron in anemic heart failure patients . METHODS IRON-HF study was a multicenter , investigator initiated , r and omized , double-blind , placebo controlled trial that enrolled anemic heart failure patients with preserved renal function , low transferrin saturation ( TSat ) and low-to-moderately elevated ferritin levels . Interventions were Iron Sucrose i.v . 200 mg , once a week , for 5 weeks , ferrous sulfate 200 mg p.o . TID , for 8 weeks , or placebo . Primary endpoint was variation of peak oxygen consumption ( peak VO2 ) assessed by ergospirometry over 3 month follow-up . RESULTS Eighteen patients had full follow-up data . There was an increment of 3.5 ml/kg/min in peak VO2 in the i.v . iron group . There was no increment in peak VO2 in the p.o . iron group . Patients ' ferritin and TSat increased significantly in both treated groups . Hemoglobin increased similarly in all groups . CONCLUSION I.v . iron seems to be superior in improving functional capacity  of heart failure patients . However , correction of anemia seems to be at least similar between p.o . iron and i.v . iron supplementation
Quality -of-life scores ( Piper Fatigue Scale MD 0.73 , 95 % CI 0.29 to 1.18 ; I2 = 0 % ; studies = 3 ) and peak oxygen consumption ( MD 2.77 mL/kg/min , 95 % CI -0.89 to 6.43 ; I2 = 36 % ; 2 studies , 32 participants ) were associated with very low- quality evidence , and we remain uncertain about the role of intravenous iron for these metrics .
Current evidence is insufficient to show benefit of intravenous iron preparations for the treatment of non-anaemic iron deficiency across a variety of patient population s , beyond stating that it may result in a small , clinical ly insignificant increase in haemoglobin concentration .
BACKGROUND Iron deficiency is one of the most common nutritional deficiencies , and has a number of physiological manifestations .
Early , or non-anaemic iron deficiency can result in fatigue and diminished exercise capacity .
Oral iron preparations have a high incidence of intolerable side effects , and are ineffective in certain forms of iron deficiency .
Consequently , intravenous iron preparations are increasingly used in the treatment of non-anaemic iron deficiency .
The newer , more stable iron preparations in particular purport to have a lower incidence of side effects , and are now used across a range of different patient population s. OBJECTIVES To assess the effects of intravenous iron therapy in the treatment of adults with non-anaemic iron deficiency .