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Sam AE, Weber Z, Peña A, Henderson C, King JM, Carr NR. A pilot study to evaluate clinical factors associated with iron and ferritin elevations during pediatric extracorporeal membrane oxygenation. Perfusion 2024; 39:585-592. [PMID: 36725017 DOI: 10.1177/02676591231154750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Introduction: Elevations in serum ferritin and serum iron occur during pediatric extracorporeal membrane oxygenation (ECMO). Previous reports attribute the elevation to frequent red blood cell transfusions and/or hemolysis. Chronic transfusion can cause iron deposition in tissues leading to multisystem organ dysfunction. This study aims identify clinical factors associated with elevated ferritin and iron in pediatric ECMO patients, along with post-decannulation magnetic resonance imaging (MRI) assessment of iron deposition in liver and brain.Methods: Prospective, pilot study, using descriptive statistics to investigate potential associations between patient characteristics, serum ferritin and iron levels, and post-decannulation hepatic and basal ganglia iron deposition.Results: In this study, nine patients (100%) had elevated serum ferritin levels during ECMO. High ferritin levels were more common with veno-arterial than with veno-venous cannulation (p = 0.026) and were also associated with high plasma free hemoglobin levels (p < 0.001). Five patients presented with elevated serum iron levels. High serum iron levels were associated with higher daily (p = 0.016) and cumulative transfusion volumes (p = 0.013) as well ECMO duration beyond 7 days. MRI scans were performed on three patients with no evidence of abnormal iron deposition detected in the liver or brain.Conclusions: This pilot study shows that during pediatric ECMO, elevations in serum ferritin and serum iron occur and those elevations may be related to the cannulation modality, ECMO duration, amount of hemolysis, and volume of red blood cell transfusions. Further investigation is warranted to fully understand the implications of elevated serum iron and ferritin in pediatric ECMO.
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Affiliation(s)
- Ashley E Sam
- Brooke Army Medical Center, Fort Sam Houston, Texas, USA
- Department of Anesthesia, Critical Care, and Pain Medicine, Boston Children's Hospital, Boston, MA, USA
| | - Zachary Weber
- Brooke Army Medical Center, Fort Sam Houston, Texas, USA
- National Capital Consortium, Bethesda, MD, USA
| | - Alejandra Peña
- University Medical Center, Lubbock, TX, USA
- University of Texas Health Science Center San Antonio Joe and Teresa Lozano Long School of Medicine, San Antonio, TX, USA
| | - Cody Henderson
- Children's Hospital of San Antonio, San Antonio, TX, USA
| | | | - Nicholas R Carr
- Brooke Army Medical Center, Fort Sam Houston, Texas, USA
- Department of Pediatrics, University of Utah, Salt Lake City, UT, USA
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Claus MA, Smart L, Raisis AL, Sharp CR, Abraham S, Gummer JPA, Mead MK, Bradley DL, Van Swelm R, Wiegerinck ETG, Litton E. Effect of Deferoxamine on Post-Transfusion Iron, Inflammation, and In Vitro Microbial Growth in a Canine Hemorrhagic Shock Model: A Randomized Controlled Blinded Pilot Study. Vet Sci 2023; 10:vetsci10020121. [PMID: 36851425 PMCID: PMC9962370 DOI: 10.3390/vetsci10020121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/27/2023] [Accepted: 02/03/2023] [Indexed: 02/08/2023] Open
Abstract
Red blood cell (RBC) transfusion is associated with recipient inflammation and infection, which may be triggered by excessive circulating iron. Iron chelation following transfusion may reduce these risks. The aim of this study was to evaluate the effect of deferoxamine on circulating iron and inflammation biomarkers over time and in vitro growth of Escherichia coli (E. coli) following RBC transfusion in dogs with atraumatic hemorrhage. Anesthetized dogs were subject to atraumatic hemorrhage and transfusion of RBCs, then randomized to receive either deferoxamine or saline placebo of equivalent volume (n = 10 per group) in a blinded fashion. Blood was sampled before hemorrhage and then 2, 4, and 6 h later. Following hemorrhage and RBC transfusion, free iron increased in all dogs over time (both p < 0.001). Inflammation biomarkers interleukin-6 (IL6), CXC motif chemokine-8 (CXCL8), interleukin-10 (IL10), and keratinocyte-derived chemokine (KC) increased in all dogs over time (all p < 0.001). Logarithmic growth of E. coli clones within blood collected 6 h post-transfusion was not different between groups. Only total iron-binding capacity was different between groups over time, being significantly increased in the deferoxamine group at 2 and 4 h post-transfusion (both p < 0.001). In summary, while free iron and inflammation biomarkers increased post-RBC transfusion, deferoxamine administration did not impact circulating free iron, inflammation biomarkers, or in vitro growth of E. coli when compared with placebo.
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Affiliation(s)
- Melissa A. Claus
- School of Veterinary Medicine, Murdoch University, Murdoch, WA 6150, Australia
- Perth Veterinary Specialists, Osborne Park, WA 6017, Australia
- Correspondence:
| | - Lisa Smart
- School of Veterinary Medicine, Murdoch University, Murdoch, WA 6150, Australia
- Small Animal Specialist Hospital, Tuggerah, NSW 2259, Australia
| | - Anthea L. Raisis
- School of Veterinary Medicine, Murdoch University, Murdoch, WA 6150, Australia
| | - Claire R. Sharp
- School of Veterinary Medicine, Murdoch University, Murdoch, WA 6150, Australia
| | - Sam Abraham
- School of Veterinary Medicine, Murdoch University, Murdoch, WA 6150, Australia
| | - Joel P. A. Gummer
- Forensic Sciences Laboratory, ChemCentre, Resources and Chemistry Precinct, Bentley, WA 6102, Australia
- School of Science, Edith Cowan University, Joondalup, WA 6027, Australia
| | - Martin K. Mead
- School of Veterinary Medicine, Murdoch University, Murdoch, WA 6150, Australia
| | - Damian L. Bradley
- Intensive Care Unit, Rockingham General Hospital, Cooloongup, WA 6168, Australia
| | - Rachel Van Swelm
- Hepcidinanalysis.com, Department of Laboratory Medicine, Translational Metabolic Laboratory (TML 830), Radboud University Medical Center, 6525 Nijmegen, The Netherlands
| | - Erwin T. G. Wiegerinck
- Hepcidinanalysis.com, Department of Laboratory Medicine, Translational Metabolic Laboratory (TML 830), Radboud University Medical Center, 6525 Nijmegen, The Netherlands
| | - Edward Litton
- Intensive Care Unit, Fiona Stanley Hospital, Murdoch, WA 6150, Australia
- School of Medicine, University of Western Australia, Crawley, WA 6009, Australia
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Cibulskis CC, Maheshwari A, Rao R, Mathur AM. Anemia of prematurity: how low is too low? J Perinatol 2021; 41:1244-1257. [PMID: 33664467 DOI: 10.1038/s41372-021-00992-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 01/20/2021] [Accepted: 02/04/2021] [Indexed: 12/11/2022]
Abstract
Anemia of prematurity (AOP) is a common condition with a well-described chronology, nadir hemoglobin levels, and timeline of recovery. However, the underlying pathophysiology and impact of prolonged exposure of the developing infant to low levels of hemoglobin remains unclear. Phlebotomy losses exacerbate the gradual decline of hemoglobin levels which is insidious in presentation, often without any clinical signs. Progressive anemia in preterm infants is associated with poor weight gain, inability to take oral feeds, tachycardia and exacerbation of apneic, and bradycardic events. There remains a lack of consensus on treatment thresholds for RBC transfusion which vary considerably. This review elaborates on the current state of the problem, its implication for the premature infant including association with subphysiologic cerebral tissue oxygenation, necrotizing enterocolitis, and retinopathy of prematurity. It outlines the impact of prophylaxis and treatment of anemia of prematurity and offers suggestions on improving monitoring and management of the condition.
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Affiliation(s)
- Catherine C Cibulskis
- Department of Pediatrics, Division of Neonatal-Perinatal Medicine, Saint Louis University School of Medicine, St. Louis, MO, USA
| | - Akhil Maheshwari
- Department of Pediatrics, Division of Neonatal-Perinatal Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Rakesh Rao
- Department of Pediatrics, Division of Newborn Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Amit M Mathur
- Department of Pediatrics, Division of Neonatal-Perinatal Medicine, Saint Louis University School of Medicine, St. Louis, MO, USA.
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Li M, Lv Y, Ying J, Xu L, Chen W, Zheng Q, Ji C, Shao J. Effect of Daily Iron Supplementation on Infantile Iron Homeostasis in Preterm Infants. Front Pediatr 2021; 9:687119. [PMID: 34123978 PMCID: PMC8192839 DOI: 10.3389/fped.2021.687119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 04/30/2021] [Indexed: 11/15/2022] Open
Abstract
Objective: The aim of this study was to investigate the effects of unified iron supplementation and identify the factors related to the iron homeostasis among preterm infants. Method: A total of 250 preterm infants were divided into neonatal anemic (NA, n = 154) and non-neonatal anemic group (NNA, n = 96). Iron supplements at a dose of 2 mg/kg per day were given from 40 weeks' gestational age to 6 months. Iron status parameters were measured at 3 and 6 months, respectively. Prevalence of iron deficiency (ID) and iron deficiency anemia (IDA), and the correlated factors were analyzed. Growth and side-effects were monitored. Results: There were no significant differences for the prevalence of ID or IDA between the two groups. Multivariate regression analyses showed that higher Hb at birth and early treatment of blood transfusion reduced the risk of ID/IDA at 3 months (all p < 0.05); while higher level of Hb at 3 months (p = 0.004) and formula feeding reduced the occurrence of ID/IDA at 6 months (p < 0.05); males had a 3.35 times higher risk to develop ID/IDA than girls (p = 0.021). No differences in growth and side effects were found. Conclusion: A daily dose of 2 mg/kg iron supplement is beneficial to maintain iron homeostasis in majority preterm infants within 6 months regardless of their neonatal anemia history. Under the routine iron supplementation, Hb level at birth and at 3 months, early treatment of blood transfusion, gender and feeding patterns are the major factors affecting the prevalence of ID/IDA among preterm infants in infancy.
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Affiliation(s)
- Mingyan Li
- Department of Pediatric Health Care, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Ying Lv
- Department of Pediatric Health Care, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Jionghuan Ying
- Department of Pediatrics, Cixi People's Hospital, Cixi, China
| | - Lin Xu
- Department of Pediatric Health Care, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Weijun Chen
- Department of Pediatric Health Care, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Quan Zheng
- Department of Pediatric Health Care, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Chai Ji
- Department of Pediatric Health Care, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Jie Shao
- Department of Pediatric Health Care, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
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Wang Y, Wu Y, Li T, Wang X, Zhu C. Iron Metabolism and Brain Development in Premature Infants. Front Physiol 2019; 10:463. [PMID: 31105583 PMCID: PMC6494966 DOI: 10.3389/fphys.2019.00463] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Accepted: 04/04/2019] [Indexed: 12/12/2022] Open
Abstract
Iron is important for a remarkable array of essential functions during brain development, and it needs to be provided in adequate amounts, especially to preterm infants. In this review article, we provide an overview of iron metabolism and homeostasis at the cellular level, as well as its regulation at the mRNA translation level, and we emphasize the importance of iron for brain development in fetal and early life in preterm infants. We also review the risk factors for disrupted iron metabolism that lead to high risk of developing iron deficiency and subsequent adverse effects on neurodevelopment in preterm infants. At the other extreme, iron overload, which is usually caused by excess iron supplementation in iron-replete preterm infants, might negatively impact brain development or even induce brain injury. Maintaining the balance of iron during the fetal and neonatal periods is important, and thus iron status should be monitored routinely and evaluated thoroughly during the neonatal period or before discharge of preterm infants so that iron supplementation can be individualized.
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Affiliation(s)
- Yafeng Wang
- Department of Neonatology (NICU), Children’s Hospital Affiliated Zhengzhou University, Zhengzhou, China
- Henan Key Laboratory of Child Brain Injury, Institute of Neuroscience and Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Department of Clinical Neuroscience, Center for Brain Repair and Rehabilitation, Institute of Neuroscience and Physiology, University of Gothenburg, Gothenburg, Sweden
| | - Yanan Wu
- Henan Key Laboratory of Child Brain Injury, Institute of Neuroscience and Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Tao Li
- Department of Neonatology (NICU), Children’s Hospital Affiliated Zhengzhou University, Zhengzhou, China
- Henan Key Laboratory of Child Brain Injury, Institute of Neuroscience and Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Department of Clinical Neuroscience, Center for Brain Repair and Rehabilitation, Institute of Neuroscience and Physiology, University of Gothenburg, Gothenburg, Sweden
| | - Xiaoyang Wang
- Henan Key Laboratory of Child Brain Injury, Institute of Neuroscience and Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Department of Physiology, Sahlgrenska Academy, Institute of Neuroscience and Physiology, University of Gothenburg, Gothenburg, Sweden
| | - Changlian Zhu
- Henan Key Laboratory of Child Brain Injury, Institute of Neuroscience and Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Department of Clinical Neuroscience, Center for Brain Repair and Rehabilitation, Institute of Neuroscience and Physiology, University of Gothenburg, Gothenburg, Sweden
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Stripeli F, Kapetanakis J, Gourgiotis D, Drakatos A, Tsolia M, Kossiva L. Post-transfusion changes in serum hepcidin and iron parameters in preterm infants. Pediatr Int 2018; 60:148-152. [PMID: 29236334 DOI: 10.1111/ped.13478] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Revised: 07/16/2017] [Accepted: 08/22/2017] [Indexed: 01/08/2023]
Abstract
BACKGROUND Packed red blood cell transfusion is common in preterm neonates. Hepcidin acts as a negative feedback iron regulator. Iron parameters such as immature reticulocyte fraction (IRF) and high-light-scatter reticulocytes (HLR) are used to clarify iron metabolism. Very little is known about the regulation of hepcidin in preterm infants because most reports have evaluated prohepcidin. The aim of this study was therefore to evaluate serum hepcidin and establish hematological parameters in preterm infants after transfusion. METHODS The subjects consisted of 19 newborns (10 boys) with mean gestational age 29.1 ± 2.0 weeks, who had been transfused at the chronological age of 44.84 ± 19.61 days. Blood sample was collected before the transfusion and thereafter at 5 days and at 1 month. Serum hepcidin and other iron parameters were evaluated. RESULTS Mean serum hepcidin before and 5 days after transfusion was significantly different (5.5 ± 5.1 vs 10 ± 7.9 ng/mL respectively, P = 0.005). IRF and % HLR were also decreased significantly, 5 days after transfusion (0.4 ± 0.2 vs 0.2 ± 0.1, P = 0.009; 1.4 ± 1.5% vs 0.5 ± 0.4%, P = 0.012, respectively). Changes in hepcidin 5 days after transfusion were correlated significantly with changes in mean corpuscular hemoglobin (β, 0.13; SE, 0.05; P = 0.017), total iron binding capacity (β, 3.74; SE, 1.56; P = 0.016) and transferrin (β, 2.9, SE, 1.4; P = 0.039). CONCLUSIONS Serum hepcidin concentration, along with IRF and HLR, are potentially useful in estimating pre- and post-transfusion iron status. Larger studies are needed to evaluate the sensitivity and specificity of hepcidin compared with ordinary iron parameters in premature infants.
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Affiliation(s)
- Fotini Stripeli
- Neonatal Intensive Care Unit, P&A Kyriakou Children's Hospital, Athens, Greece
| | - John Kapetanakis
- Neonatal Intensive Care Unit, P&A Kyriakou Children's Hospital, Athens, Greece
| | - Dimitris Gourgiotis
- Research Laboratory of Clinical Biochemistry-Molecular Diagnostics, P&A Kyriakou Children's Hospital, Athens, Greece
| | - Antonis Drakatos
- Laboratory of Biochemistry, P&A Kyriakou Children's Hospital, Athens, Greece
| | - Maria Tsolia
- Second Department of Pediatrics, National and Kapodistrian University of Athens, P&A Kyriakou Children's Hospital, Athens, Greece
| | - Lydia Kossiva
- Second Department of Pediatrics, National and Kapodistrian University of Athens, P&A Kyriakou Children's Hospital, Athens, Greece
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Ichinomiya K, Maruyama K, Inoue T, Koizumi A, Inoue F, Fukuda K, Yamazaki Y, Arakawa H. Perinatal Factors Affecting Serum Hepcidin Levels in Low-Birth-Weight Infants. Neonatology 2017; 112:180-186. [PMID: 28601871 DOI: 10.1159/000473871] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Accepted: 03/30/2017] [Indexed: 12/28/2022]
Abstract
BACKGROUND Hepcidin, an iron-regulatory hormone, plays a key role in preventing iron overload. Few studies have investigated the regulation of hepcidin in low-birth-weight (LBW) infants who are vulnerable to iron imbalance. OBJECTIVES To identify perinatal factors associated with serum hepcidin levels in LBW infants. METHODS Ninety-two LBW infants with a median gestational age (GA) of 32.6 weeks and birth weight of 1,587 g were prospectively enrolled. Serum hepcidin-25 (Hep25) levels were measured from umbilical cord blood using liquid chromatography-tandem mass spectrometry. The relationship between Hep25 levels and prematurity or other possible hepcidin-regulatory factors was evaluated. RESULTS The median Hep25 level was 7.3 ng/mL (interquartile range: 2.85-16.38). log(Hep25) correlated with birth weight (r = 0.229, p = 0.028), log(interleukin-6 [IL-6]) (r = 0.408, p < 0.001), log(erythropoietin) (r = -0.302, p = 0.004), transferrin saturation (r = 0.29, p = 0.005), soluble transferrin receptor (r = -0.500, p < 0.001), and log(ferritin) (r = 0.696, p < 0.001). Serum iron and hemoglobin levels did not correlate with log(Hep25). Hep25 levels were higher among infants with chorioamnionitis and infants born vaginally and lower among infants born to mothers with pregnancy-induced hypertension than among infants without the respective characteristics. Stepwise multiple linear regression analysis confirmed the significant association of log(Hep25) with GA, log(IL-6), log(erythropoietin), and soluble transferrin receptor. CONCLUSIONS Among LBW infants, GA, IL-6, erythropoietin, and soluble transferrin receptor were associated with Hep25 levels. Therefore, prematurity, inflammation, hypoxia, and erythropoietic activity may be important perinatal factors that affect hepcidin levels.
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Affiliation(s)
- Kenji Ichinomiya
- Department of Neonatology, Gunma Children's Medical Center, Gunma, Japan
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