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Seetharaman J, Sarma MS. Chelation therapy in liver diseases of childhood: Current status and response. World J Hepatol 2021; 13:1552-1567. [PMID: 34904029 PMCID: PMC8637676 DOI: 10.4254/wjh.v13.i11.1552] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 05/07/2021] [Accepted: 08/20/2021] [Indexed: 02/06/2023] Open
Abstract
Chelation is the mainstay of therapy in certain pediatric liver diseases. Copper and iron related disorders require chelation. Wilson’s disease (WD), one of the common causes of cirrhosis in children is treated primarily with copper chelating agents like D-penicillamine and trientine. D-Penicillamine though widely used due its high efficacy in hepatic WD is fraught with frequent adverse effects resulting discontinuation. Trientine, an alternative drug has comparable efficacy in hepatic WD but has lower frequency of adverse effects. The role of ammonium tetra-thiomolybdate is presently experimental in hepatic WD. Indian childhood cirrhosis is related to excessive copper ingestion, rarely seen in present era. D-Penicillamine is effective in the early part of this disease with reversal of clinical status. Iron chelators are commonly used in secondary hemochromatosis of liver in hemolytic anemias. There are strict chelation protocols during bone marrow transplant. The role of iron chelation in neonatal hemochromatosis is presently not in vogue due to its poor efficacy and availability of other modalities of therapy. Hereditary hemochromatosis is rare in children and the use of iron chelators in this condition is limited.
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Affiliation(s)
- Jayendra Seetharaman
- Department of Pediatric Gastroenterology, Sanjay Gandhi Post-graduate Institute of Medical Sciences, Lucknow 226014, Uttar Pradesh, India
| | - Moinak Sen Sarma
- Department of Pediatric Gastroenterology, Sanjay Gandhi Post-graduate Institute of Medical Sciences, Lucknow 226014, Uttar Pradesh, India
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A phase 2 trial of N-Acetylcysteine in Biliary atresia after Kasai portoenterostomy. Contemp Clin Trials Commun 2019; 15:100370. [PMID: 31193715 PMCID: PMC6542754 DOI: 10.1016/j.conctc.2019.100370] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 03/26/2019] [Accepted: 04/25/2019] [Indexed: 12/12/2022] Open
Abstract
Background Biliary atresia (BA) is a life-threatening liver disease of infancy, characterized by extrahepatic biliary obstruction, bile retention, and progressive liver injury. The Kasai portoenterostomy (KP) is BA's only nontransplant treatment. Its success is variable and depends on restoration of hepatic bile flow. Many adjunctive therapeutics have been studied to improve outcomes after the KP, but none demonstrate effectiveness. This study tests if N-acetylcysteine (NAC), a precursor to the choleretic glutathione, improves bile flow after KP. Methods This report describes the design of an open-label, single center, Phase 2 study to determine the effect of NAC following KP on markers of bile flow and outcomes in BA. The intervention is intravenous NAC (150 mg/kg/day) administered continuously for seven days starting 0-24 h after KP. The primary outcome is normalization of total serum bile acid (TSBA) concentrations within 24 weeks of KP. The secondary objectives are to describe NAC therapy's effect on other clinical parameters followed in BA for 24 months and to report adverse events occurring with therapy. This study follows the "minimax" clinical trial design. Discussion This is the first clinical trial to test NAC's effectiveness in improving bile flow after KP in BA. It introduces three important concepts for future BA therapeutic trials: (1) the "minimax" study design, a pertinent design for rare diseases because it detects potential effects quickly with small subject size; (2) the more sensitive bile flow marker, TSBAs, which may correlate with positive long-term outcomes better than traditional bile flow markers such as serum bilirubin; and (3) liver enzyme changes immediately after KP, which can be a guideline for potential drug-induced liver injury in other BA peri-operative adjunctive therapeutic trials.
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Key Words
- ALT, Alanine transaminase
- AST, Aspartate aminotransferase
- BA, Biliary atresia
- Bc, Conjugated bilirubin
- Biliary atresia
- DILI, Drug-induced liver injury
- DSMB, Data and Safety Monitoring Board
- DoL, Day of life
- Drug-induced liver injury
- FDA, Food and Drug administration
- GGT, Gamma-glutamlytransferase
- IOC, Intraoperative cholangiogram
- KP, Kasai portoenterostomy
- Kasai portoenterostomy
- Minimax design
- N-acetylcysteine
- NAC, N-acetylcysteine
- START, Steroids in Biliary Atresia Randomized Trial
- Serum bile acids
- TB, Total bilirubin
- TCH, Texas Children's Hospital
- TSBA, Total serum bile acids
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Behairy BES, Konswa HAA, Ahmed HT, El-Azab DS, Adawy NM, Sira AM. Serum ferritin in neonatal cholestasis: A specific and active molecule or a non-specific bystander marker? Hepatobiliary Pancreat Dis Int 2019; 18:173-180. [PMID: 30833173 DOI: 10.1016/j.hbpd.2019.02.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Accepted: 02/16/2019] [Indexed: 02/05/2023]
Abstract
BACKGROUND Serum ferritin (SF) and consequently hepatic iron have long been considered important in liver fibrosis progression. They have been studied in different liver diseases with no previous reports in neonatal cholestasis (NC). This study aimed to measure SF in different etiologies of NC and investigate its relation to hepatic iron and fibrosis. METHODS SF was measured in 75 infants, including 50 with NC and 25 with sepsis. SF was compared between these two groups. Biochemical parameters, hepatic iron grades, and liver fibrosis and other histopathological characteristics and correlated with SF were assessed in NC group. Finally, a comparison between intrahepatic cholestasis and obstructive etiology was performed. RESULTS SF was elevated in NC (1598 ± 2405 ng/mL) with no significant difference from those with sepsis (P = 0.445). NC and sepsis constituted augmenting factors leading to more elevation of SF (2589 ± 3511 ng/mL). SF was significantly correlated with hepatic iron grades (r = 0.536, P < 0.0001) and a cut-off value of 803.5 ng/mL can predict higher grades (≥ grade 3) of iron deposition with sensitivity of 100%, specificity of 70% and accuracy of 85%. Moreover, SF was significantly higher (P < 0.0001) in those with intrahepatic cholestasis (2602 ± 3154 ng/mL) and their prevalent pathological findings of giant cell transformation (P = 0.009) and hepatocyte swelling (P = 0.023) than those with obstructive etiology (672 ± 566 ng/mL) and their prevalent pathological findings of ductular proliferation (P = 0.003) and bile plugs (P = 0.002). SF was unrelated to the grade of liver fibrosis (P = 0.058). CONCLUSIONS SF is non-specifically elevated in NC, with positive correlation to hepatic iron grades. SF ≥ 803.5 ng/mL can predict higher grades (≥ grade 3) of hepatic iron. However, an active role of increased SF and hepatic iron in disease progression remains questionable.
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Affiliation(s)
- Behairy El-Sayed Behairy
- Department of Pediatric Hepatology, Gastroenterology, and Nutrition, National Liver Institute, Menofiya University, 32511 Shebin El-koom, Menofiya, Egypt
| | - Hatem Abd-Alsattar Konswa
- Department of Pediatric Hepatology, Gastroenterology, and Nutrition, National Liver Institute, Menofiya University, 32511 Shebin El-koom, Menofiya, Egypt
| | - Hanaa Talaat Ahmed
- Department of Pediatric Hepatology, Gastroenterology, and Nutrition, National Liver Institute, Menofiya University, 32511 Shebin El-koom, Menofiya, Egypt
| | - Dina Shehata El-Azab
- Department of Pathology, National Liver Institute, Menofiya University, 32511 Shebin El-koom, Menofiya, Egypt
| | - Nermin Mohamed Adawy
- Department of Pediatric Hepatology, Gastroenterology, and Nutrition, National Liver Institute, Menofiya University, 32511 Shebin El-koom, Menofiya, Egypt
| | - Ahmad Mohamed Sira
- Department of Pediatric Hepatology, Gastroenterology, and Nutrition, National Liver Institute, Menofiya University, 32511 Shebin El-koom, Menofiya, Egypt.
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Taylor SA, Kelly S, Alonso EM, Whitington PF. The Effects of Gestational Alloimmune Liver Disease on Fetal and Infant Morbidity and Mortality. J Pediatr 2018; 196:123-128.e1. [PMID: 29499991 DOI: 10.1016/j.jpeds.2017.12.054] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Revised: 12/14/2017] [Accepted: 12/19/2017] [Indexed: 01/05/2023]
Abstract
OBJECTIVES To evaluate pregnancy outcomes in pedigrees of neonatal hemochromatosis to determine the spectrum of gestational alloimmune liver disease (GALD) in a large cohort. STUDY DESIGN We prospectively collected data from women with a prior offspring with proven neonatal hemochromatosis between 1997 and 2015 and analyzed pregnancy outcomes. RESULTS The pedigrees from 150 women included 350 gestations with outcomes potentially related to GALD. There were 105 live-born infants without liver disease, 157 live-born infants with liver failure, and 88 fetal losses. Fetal loss occurred in 25% of total gestations. Ninety-seven pedigrees contained a single affected offspring, whereas 53 contained multiple affected offspring. Analysis of these 53 pedigrees yielded a per-pregnancy repeat occurrence rate of 95%. Notably, the first poor outcome occurred in the first pregnancy in 60% of pedigrees. Outcomes of the 157 live-born infants with liver failure were poor: 18% survived, 82% died. Of the 134 live-born infants with treatment data, 20 received intravenous immunoglobulin with or without double-volume exchange transfusion of which 9 (45%) survived; 14 infants (10%) received a liver transplant of which 6 (43%) survived. CONCLUSIONS GALD is a significant cause of both fetal loss and neonatal mortality with a high rate of disease recurrence in untreated pregnancies at risk. Poor outcomes related to GALD commonly occur in the first gestation, necessitating a high index of suspicion to diagnose this disorder at first presentation.
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Affiliation(s)
- Sarah A Taylor
- Department of Pediatrics, Ann and Robert H Lurie Children's Hospital of Chicago, Chicago, IL.
| | - Susan Kelly
- Department of Pediatrics, Ann and Robert H Lurie Children's Hospital of Chicago, Chicago, IL
| | - Estella M Alonso
- Department of Pediatrics, Ann and Robert H Lurie Children's Hospital of Chicago, Chicago, IL
| | - Peter F Whitington
- Department of Pediatrics, Ann and Robert H Lurie Children's Hospital of Chicago, Chicago, IL
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HEPATITIS ALOINMUNE FETAL. REVISTA MÉDICA CLÍNICA LAS CONDES 2015. [DOI: 10.1016/j.rmclc.2015.06.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Sheflin-Findling S, Annunziato RA, Chu J, Arvelakis A, Mahon D, Arnon R. Liver transplantation for neonatal hemochromatosis: analysis of the UNOS database. Pediatr Transplant 2015; 19:164-9. [PMID: 25557040 DOI: 10.1111/petr.12418] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/21/2014] [Indexed: 11/27/2022]
Abstract
NH is the most common identifiable cause of ALF in the neonate. LT is the definitive treatment for neonates with NH who have failed medical therapy. Our aim was to determine the outcomes of LT in infants with NH. Patients (less than one yr of age) with NH who were listed for LT and patients who underwent LT between 1994 and 2013 were identified from the UNOS database for analysis. Risk factors for death and graft loss were analyzed by multivariate logistic regression. Thirty-eight infants with NH with a total of 43 transplants were identified. One- and five-yr patient and graft survival were 84.2%, 81.6%, 71.1%, and 68.4%, respectively. The outcomes for NH were not significantly different when compared to the same age-matched recipients with other causes of ALF. There were no statistically significant risk factors identified for graft loss or death. Ninety infants with NH were listed for LT. Reasons for removal included transplanted (49%), death (27%), too sick to transplant (7%), and improved status (13%). LT for infants with NH has a high rate of graft loss and death; however, outcomes are comparable to the same age-matched recipients with other causes of ALF.
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Affiliation(s)
- Shari Sheflin-Findling
- Division of Pediatric Hepatology, Mount Sinai Medical Center, New York, NY, USA; Recanati/Miller Transplantation Institute, Mount Sinai Medical Center, New York, NY, USA
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Schaefer B, Effenberger M, Zoller H. Iron metabolism in transplantation. Transpl Int 2014; 27:1109-17. [PMID: 24964028 DOI: 10.1111/tri.12374] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Revised: 06/02/2014] [Accepted: 06/17/2014] [Indexed: 01/19/2023]
Abstract
Recipient's iron status is an important determinant of clinical outcome in transplantation medicine. This review addresses iron metabolism in solid organ transplantation, where the role of iron as a mediator of ischemia-reperfusion injury, as an immune-modulatory element, and as a determinant of organ and graft function is discussed. Although iron chelators reduce ischemia-reperfusion injury in cell and animal models, these benefits have not yet been implemented into clinical practice. Iron deficiency and iron overload are associated with reduced immune activation, whose molecular mechanisms are reviewed in detail. Furthermore, iron overload and hyperferritinemia are associated with poor prognosis in end-stage organ failure in patients awaiting kidney, or liver transplantation. This negative prognostic impact of iron overload appears to persist after transplantation, which highlights the need for optimizing iron management before and after solid organ transplantation. In contrast, iron deficiency and anemia are also associated with poor prognosis in patients with end-stage heart failure. Intravenous iron supplementation should be managed carefully because parenterally induced iron overload could persist after successful transplantation. In conclusion, current evidence shows that iron overload and iron deficiency are important risk factors before and after solid organ transplantation. Iron status should therefore be actively managed in patients on the waiting list and after transplantation.
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Affiliation(s)
- Benedikt Schaefer
- Department of Medicine II, Gastroenterology and Hepatology, Medical University of Innsbruck, Innsbruck, Austria
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Agrawal S, Dhiman RK. Hepatobiliary quiz-9 (2014). J Clin Exp Hepatol 2014; 4:81-4. [PMID: 25755542 PMCID: PMC4188737 DOI: 10.1016/j.jceh.2014.03.054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Affiliation(s)
| | - Radha K. Dhiman
- Address for correspondence: Radha K. Dhiman, Department of Hepatology, Postgraduate Institute of Medical Education and Research, Chandigarh 160012, India.
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Clinical and Imaging Resolution of Neonatal Hemochromatosis following Treatment. Case Rep Crit Care 2014; 2014:650916. [PMID: 25057417 PMCID: PMC4095653 DOI: 10.1155/2014/650916] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2014] [Revised: 05/31/2014] [Accepted: 06/07/2014] [Indexed: 11/17/2022] Open
Abstract
Neonatal hemochromatosis (NH) is an acute liver disease associated with both hepatic and extrahepatic iron deposition and is a leading cause of neonatal liver transplantation. The concept that NH is an alloimmune disease has led to the emergence of a new treatment approach utilizing exchange transfusion and intravenous immunoglobulin therapy. We present a two-day old neonate with progressive liver dysfunction who was diagnosed with NH. Magnetic resonance imaging confirmed tissue iron overload. Treatment with intravenous immunoglobulins and exchange transfusion led to rapid improvement in liver function. Follow-up physical examination at the age of 8 months showed normal development and near normal liver function. A repeat abdominal magnetic resonance scan at 8 months showed no signs of iron deposition in the liver, pancreas, or adrenal glands. The present report provides further support for the use of exchange transfusion and immunoglobulin therapy in NH and is the first to document resolution of typical iron deposition by magnetic resonance imaging.
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Abstract
Neonatal hemochromatosis is a clinical condition in which severe liver disease in the newborn is accompanied by extrahepatic siderosis. Gestational alloimmune liver disease (GALD) has been established as the cause of fetal liver injury resulting in nearly all cases of NH. In GALD, a women is exposed to a fetal antigen that she does not recognize as "self" and subsequently begins to produce IgG antibodies that are directed against fetal hepatocytes. These antibodies bind to fetal liver antigen and activate the terminal complement cascade resulting in hepatocyte injury and death. GALD can cause congenital cirrhosis or acute liver failure with and without iron overload and siderosis. Practitioners should consider GALD in cases of fetal demise, stillbirth, and neonatal acute liver failure. Identification of infants with GALD is important as treatment is available and effective for subsequent pregnancies.
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Affiliation(s)
- Amy G. Feldman
- Address for correspondence. Amy G. Feldman, MD, Ann & Robert H. Lurie Children's Hospital of Chicago, 225 East Chicago Avenue, Box 57, Chicago, IL 60611-2605, United States. Tel.: +1 312 227 7600; fax: +1 312 227 9645.
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Primary biliary cirrhosis-specific antimitochondrial antibodies in neonatal haemochromatosis. Clin Dev Immunol 2013; 2013:642643. [PMID: 24171034 PMCID: PMC3792542 DOI: 10.1155/2013/642643] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2013] [Accepted: 08/22/2013] [Indexed: 01/14/2023]
Abstract
Background and Aim. Neonatal hemochromatosis (NH) is characterised by severe liver injury and extrahepatic siderosis sparing the reticuloendothelial system. Its aetiology is obscure, although it has been proposed as an alloimmune disease, resulting from immunological reaction to self-antigens (alloantigens) which the body recognizes as foreign. We studied an infant with NH and his mother whose sera contained antimitochondrial antibody (AMA), the hallmark of primary biliary cirrhosis (PBC). Material and Methods. To investigate the origin of AMA in the infant, we studied isotype distributions in serum from the mother and infant. Serum samples were obtained at diagnosis of NH, after liver transplantation (LT; age 1 month), and over the ensuing 17 months. Results. At NH diagnosis, infant and maternal serum contained AMA of the IgG isotype, predominantly of the G3 and G1 subclasses. AMA strongly reacted against the pyruvate dehydrogenase complex E2 subunit (PDC-E2), the major PBC-specific AMA autoantigen. Anti-PDC-E2 responses in both infant and mother declined over time, being present 2 months after LT (mother and child) and absent 10 months later (mother) and 17 months later (child). Conclusion. The association of maternally transferred IgG1 and IgG3 subclass AMA with the appearance of liver damage in an infant with NH may suggest a causal link between antibody and liver damage.
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Systemerkrankungen. PÄDIATRISCHE GASTROENTEROLOGIE, HEPATOLOGIE UND ERNÄHRUNG 2013. [PMCID: PMC7498801 DOI: 10.1007/978-3-642-24710-1_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Systemerkrankungen als Ursache einer Lebererkrankung sind häufig, ohne dass man genaue Zahlen angeben kann. Die verschiedenen Grunderkrankungen sind für sich betrachtet zwar selten, nur dadurch, dass viele Erkrankungen in Betracht gezogen werden müssen, ergibt sich eine relative Häufung. Durch Fortschritte auf dem Gebiet der molekularbiologischen Diagnostik insbesondere bei den Stoffwechselerkrankungen lassen sich heute bereits viele der in Frage kommenden Grunderkrankungen eindeutig nachweisen. Allerdings ist bei keiner der Erkrankungen ein hundertprozentiger molekularbiologischer Nachweis möglich. Damit ergibt sich eine sichere Diagnose nur bei einem positiven Nachweis. Bei fehlendem Nachweis einer bisher bekannten für die Erkrankung spezifischen Mutation bleibt die Zuordnung entweder enzymatischen Tests oder klinischer Diagnose vorbehalten. Insbesondere bei der Manifestation als akutes Leberversagen ist die für die Diagnosesicherung erforderliche Zeit damit oft nicht vorhanden.
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Babor F, Hadzik B, Stannigel H, Mayatepek E, Hoehn T. Successful management of neonatal hemochromatosis by exchange transfusion and immunoglobulin: a case report. J Perinatol 2013; 33:83-5. [PMID: 23269232 DOI: 10.1038/jp.2012.9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Neonatal hemochromatosis (NH) is a rare and severe liver disease of mainly intra-uterine onset, characterized by neonatal liver failure, hepatic and extrahepatic iron accumulation. This leads to an altered iron metabolism with resulting siderosis. The disease represents the most common cause of liver failure in neonates and is also the most common indication for neonatal liver transplantation. We present a case of a newborn diagnosed with NH and life threatening liver failure. Initial treatment consisted of chelation therapy and antioxidants, but lack of laboratory and clinical improvement led to an exchange transfusion followed by the singular substitution of intravenous immunoglobulin (IVIG). Both, exchange transfusion and IVIG were tolerated well and led to an improvement of the general condition of the patient and recovery of liver synthetic function. The subsequent favorable course of the disease is described in this case report.
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Affiliation(s)
- F Babor
- Department for Pediatric Oncology, Hematology and Clinical Immunology, Center for Child and Adolescent Health, Heinrich Heine-University, Düsseldorf, Germany.
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Zoller H, Knisely AS. Control of iron metabolism--lessons from neonatal hemochromatosis. J Hepatol 2012; 56:1226-9. [PMID: 22402293 DOI: 10.1016/j.jhep.2012.02.012] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2012] [Accepted: 02/24/2012] [Indexed: 01/16/2023]
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Paupe A, Duclos B, Leroy B, Molho M. [Prenatal treatment of neonatal hemochromatosis with maternal administration of intravenous immunoglobulins (about four cases)]. GYNECOLOGIE, OBSTETRIQUE & FERTILITE 2011; 39:418-424. [PMID: 21742537 DOI: 10.1016/j.gyobfe.2011.03.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2010] [Accepted: 03/15/2011] [Indexed: 05/31/2023]
Abstract
OBJECTIVES Neonatal hemochromatosis is a very bad prognosis disease; liver transplantation was the only way to avoid an unfavourable evolution. Nowadays, hypothesis of an alloimmune mechanism for this disease has purposed to administrate high doses of immunoglobulins. PATIENTS AND METHODS In this study, we report four cases of women whose previous child had neonatal hemochromatosis and who received such a treatment during the next pregnancy from 18 weeks to the term. RESULTS This treatment allowed to lead their pregnancy to success. At birth, all four neonates were alive. Two of them presented transitory biologic symptoms of liver deficiency. All had a favourable evolution later. DISCUSSION AND CONCLUSION Maternal treatment with high doses of immunoglobulins during pregnancy seems to improve dramatically the prognosis of neonatal hemochromatosis as it has been already reported. It could also apply to other diseases, which proceed from the same mechanism.
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Affiliation(s)
- A Paupe
- Département de gynécologie-obstétrique et médecine néonatale, hôpital Poissy-Saint-Germain, université Versailles-Saint-Quentin, 10 rue du Champ-Gaillard, Poissy cedex, France.
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Darwish AA, McKiernan P, Chardot C. Paediatric liver transplantation for metabolic disorders. Part 2: Metabolic disorders with liver lesions. Clin Res Hepatol Gastroenterol 2011; 35:271-80. [PMID: 21376696 DOI: 10.1016/j.clinre.2011.01.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Liver based metabolic disorders account for 10 to 15% of the indications for paediatric liver transplantation. In the last three decades, important progress has been made in the understanding of these diseases, and new therapies have emerged. Concomitantly, medical and surgical innovations have lead to improved results of paediatric liver transplantation, patient survival nowadays exceeding 80% 10 year after surgery with close to normal quality of life in most survivors. This review is a practical update on medical therapy, indications and results of liver transplantation, and potential future therapies, for the main liver based metabolic disorders in which paediatric liver transplantation may be considered. Part 1 focuses on metabolic based liver disorders without liver lesions, and part 2 on metabolic liver diseases with liver lesions.
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Affiliation(s)
- Ahmed A Darwish
- University of Geneva Children's hospital, Paediatric Surgery Unit, Geneva, Switzerland
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Annagür A, Altunhan H, Yüksekkaya HA, Örs R. Therapeutic management of neonatal hemochromatosis: Report of four cases and literature review. Hum Exp Toxicol 2011; 30:1728-34. [DOI: 10.1177/0960327110396534] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Neonatal hemochromatosis (NH) is a rare disease of iron metabolism that starts at intrauterine period causing liver failure and extrahepatic siderozis. The etiology of NH has not been understood exactly, yet it is accepted that a maternofetal alloimmune disorder that leads to liver failure in fetus causes the illness. The prognosis of NH is generally bad and death is inevitable if left untreated. The efficiency of chelation–antioxidant coctail used in medical treatment is between 10% and 20% and these patients frequently need liver transplantation. In our study, we presented four newborn cases diagnosed as NH and treated medically. Of the four patients, one died of pulmonary hemorrhage and another died of multiorgan failure in the first week of hospitalization. The other two patients' clinical status and laboratory parameters recovered with medical treatment. However, since liver transplantation was not carried out, one of these patients died at the age of two and a half months and the other at eighth month due to sepsis. In this study, we would like to emphasize the importance of early liver transplantation in patients recovered with medical treatment.
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Affiliation(s)
- Ali Annagür
- Division of Neonatology, Selcuk University Meram Medical Faculty, Konya, Turkey
| | - Hüseyin Altunhan
- Division of Neonatology, Selcuk University Meram Medical Faculty, Konya, Turkey
| | - Hasan Ali Yüksekkaya
- Division of Pediatric Gastroenterology, Selcuk University Meram Medical Faculty, Konya, Turkey
| | - Rahmi Örs
- Division of Neonatology, Selcuk University Meram Medical Faculty, Konya, Turkey
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Blasco Alonso J, González Gómez JM, Blasco Alonso M, Gil Gómez R, Navas López VM, Sierra Salinas C, González Escañuela E, Herrera Peral J. [Neonatal haemochromatosis: a new and promising horizon]. An Pediatr (Barc) 2011; 74:139-40. [PMID: 21215717 DOI: 10.1016/j.anpedi.2010.09.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2009] [Revised: 08/28/2010] [Accepted: 09/19/2010] [Indexed: 11/30/2022] Open
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Neonatal hemochromatosis and exchange transfusion: treating the disorder as an alloimmune disease. J Pediatr Gastroenterol Nutr 2010; 50:471-2. [PMID: 20639702 DOI: 10.1097/mpg.0b013e3181d24517] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
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Abstract
Liver failure in newborns can present formidable diagnostic challenges. The presentation of neonatal liver failure is variable and the initial assessment is crucial in the determination of potentially treatable causes. We present a case of neonatal hemochromatosis, review genetic and metabolic causes of neonatal liver failure, and outline an updated differential diagnosis of neonatal liver failure. In addition, we propose a comprehensive initial work-up of neonatal liver failure, and review current treatments for neonatal hemochromatosis.
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Rand EB, Karpen SJ, Kelly S, Mack CL, Malatack JJ, Sokol RJ, Whitington PF. Treatment of neonatal hemochromatosis with exchange transfusion and intravenous immunoglobulin. J Pediatr 2009; 155:566-71. [PMID: 19560784 DOI: 10.1016/j.jpeds.2009.04.012] [Citation(s) in RCA: 127] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2008] [Revised: 01/27/2009] [Accepted: 04/08/2009] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To determine if immunomodulatory treatment including intravenous immunoglobulin (IVIG) can favorably affect survival in neontatal hemochromatosis (NH) diagnosed postnatally because it can effectively prevent occurrence of NH when applied during gestations at risk. STUDY DESIGN We treated 16 newborn infants with liver failure due to NH with high-dose IVIG, in combination with exchange transfusion in 13 (ET/IVIG), and compared the outcome with 131 historical controls treated conventionally. RESULTS The severity of liver disease as estimated by prothrombin time was similar in the subjects receiving ET/IVIG and the historical controls, and the medical therapy was equivalent with the exception of the ET/IVIG therapy. Twelve subjects (75%) had good outcome, defined as survival without liver transplantation, whereas good outcome was achieved in only 17% (23/131) of historical control patients (P < .001). Four subjects died, 2 without and 2 after liver transplant. Survivors were discharged 6 to 90 days after receiving ET/IVIG therapy, and those followed for more than 1 year are within normal measures for growth, development, and liver function. CONCLUSIONS Immune therapy with ET/IVIG appears to improve the outcome and reduce the need for liver transplantation in patients with NH.
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Affiliation(s)
- Elizabeth B Rand
- Department of Pediatrics, Children's Hospital of Philadelphia, Philadelphia, PA, USA
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23
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Abstract
Neonatal hemochromatosis is a rare disease of iron metabolism, characterized by the excess accumulation of iron in the tissues. This occurs in utero and can lead to fetal demise or an infant who presents with advanced liver disease in the neonatal period. A case of neonatal hemochromatosis is reported in a 37-week infant who presented at birth with thrombocytopenia, coagulopathy, and abnormal liver imaging studies. The diagnoses of infection and metabolic errors were excluded before the confirmation of neonatal hemochromatosis was made. This diagnosis was confirmed by elevated ferritin levels and extrahepatic siderosis excluding the reticuloendothelial system. Anti-oxidant therapy was initiated with N-acetyl cysteine, selenium, vitamins C and E and intravenous immunoglobulin. The infant demonstrated a positive response and was discharged home with outpatient follow up. The clinical presentation of neonatal hemochromatosis is reviewed as well as diagnosis and treatment strategies.
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Abstract
Preterm infants are at risk for both iron deficiency and iron overload. The role of iron in multiple organ functions suggests that iron supplementation is essential for the preterm infant. Conversely, the potential for iron overload and the poorly developed antioxidant measures in the preterm infant argue against indiscriminate iron supplementation in this population. This article reviews the predisposing factors and consequences of iron deficiency and iron overload in the preterm infant, discusses the current recommendation for iron supplementation and its appropriateness, and describes potential management strategies that strike a balance between iron deficiency and iron toxicity.
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Affiliation(s)
- Raghavendra Rao
- Division of Neonatology, Department of Pediatrics, University of Minnesota, Mayo Mail Code 39, 420 Delaware Street, SE, Minneapolis, MN 55455, USA.
| | - Michael K. Georgieff
- Professor of Pediatrics and Child Development, Division of Neonatology, University of Minnesota, Director, Center for Neurobehavioral Development, University of Minnesota
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Mackay RJ, Bratkovic D, Couper R, Davidson GP, Fahy R, Fletcher JM, Ranieri E. Detection of treatable neonatal liver disease by expanded newborn screening. J Inherit Metab Dis 2008; 31 Suppl 2:S271-3. [PMID: 18855117 DOI: 10.1007/s10545-008-0842-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2007] [Revised: 08/02/2008] [Accepted: 08/21/2008] [Indexed: 10/21/2022]
Abstract
Two neonates were identified at age 48 h by expanded newborn screening, with abnormal methionine and tyrosine concentrations, which were confirmed on repeat samples. Evidence of previously unsuspected liver disease was found at recall, and there was radiological and biochemical evidence of severe liver disease with hepatic synthetic failure. After inborn errors of metabolism (IEMs) were excluded, both were considered to have neonatal haemochromatosis, on the basis of raised ferritin, iron saturation, and very high α-fetoprotein and confirmed by a mildly hyperferritinaemic sibling in the first case, and raised ferritin and iron saturation in the second. However, it was not feasible to obtain tissue confirmation as the requirement for early therapy precluded biopsy. The babies were treated with antioxidants and iron-chelating agents, and the coagulopathy and hypoalbuminaemia were corrected. Both made a complete recovery and remain well after follow-up. Newborn screening programmes could consider advising clinicians, when tyrosine and methionine values are elevated, that once IEMs are excluded liver disease from other causes must be sought. Neonatal haemochromatosis is an example of one such disease that is potentially treatable.
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Affiliation(s)
- R J Mackay
- Department of Genetic Medicine, Women's and Children's Hospital, Adelaide, South Australia, Australia.
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26
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Emergency liver transplantation in neonates with acute liver failure: long-term follow-up. Transplantation 2008; 86:932-6. [PMID: 18852658 DOI: 10.1097/tp.0b013e318186d64a] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
BACKGROUND Acute neonatal liver failure is a rare condition that is often fatal. Liver transplantation (LTx) in affected neonates may be life saving, but there are only few data on the long-term outcome of neonatal LTx. PATIENTS AND METHODS We conducted a retrospective study of 11 LTx performed in 10 pediatric patients with acute liver failure in the first month of life. Median age at LTx was 15 days (range: 7-31 days) and median weight was 3.25 kg (range: 2-4 kg). The reasons for liver failure were neonatal hemochromatosis (n=5), hemangioendothelioma (n=2), infection caused by echovirus type 11 (n=1), mitochondrial disorder (n=1), unknown (n=1), and primary nonfunction after LTx (n=1). In 10 patients, LTx organs of deceased donors were used (reduced size n=5, split n=5), and living donor LTx was performed in one neonate. The patients were evaluated with respect to survival, graft function, perioperative complications, and neurodevelopmental outcome. RESULTS After a median follow-up time of 5 years (range: 1-14 years), 8 of 10 patients (80%) were alive. Seven of them were in good clinical condition and had normal liver function tests. One patient had to undergo retransplantation because of primary nonfunction and another is currently listed for retransplantation because of chronic graft dysfunction. Neurodevelopment was normal in 75% of the surviving patients. CONCLUSIONS Liver transplantation provides good short- and medium-term results in neonatal acute liver failure.
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27
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Whitington PF, Kelly S. Outcome of pregnancies at risk for neonatal hemochromatosis is improved by treatment with high-dose intravenous immunoglobulin. Pediatrics 2008; 121:e1615-21. [PMID: 18474533 DOI: 10.1542/peds.2007-3107] [Citation(s) in RCA: 104] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVES Neonatal hemochromatosis is the result of severe fetal liver injury that seems to result from maternal-fetal alloimmunity. Women who have had an infant affected with neonatal hemochromatosis are at high risk in subsequent pregnancies for having another affected infant. This study was designed to determine whether therapy directed at limiting the severity of gestational alloimmunity can reduce the occurrence of severe neonatal hemochromatosis in infants of women at risk. A secondary objective was to use a prospectively collected data set to examine questions of vital interest about neonatal hemochromatosis. METHODS Women with a history of pregnancy ending in documented neonatal hemochromatosis were treated with intravenous immunoglobulin at 1 g/kg of body weight weekly from week 18 until the end of gestation. Extensive data were prospectively collected regarding the gestational histories of the subjects. The outcomes of treated pregnancies were compared with those of previous affected pregnancies, which were used as historical controls. RESULTS Forty-eight women were enrolled to be treated during 53 pregnancies. The gestational histories of these women demonstrated the high risk of occurrence of neonatal hemochromatosis: 92% of pregnancies at risk resulted in intrauterine fetal demise, neonatal death, or liver failure necessitating transplant. In contrast, with gestational therapy, the 53 at-risk gestations resulted in 3 failures and 52 infants who survived intact with medical therapy alone. When compared on a per-woman or per-infant basis, the outcome of gestation at risk for neonatal hemochromatosis was improved by gestational therapy. CONCLUSIONS Neonatal hemochromatosis seems to be the result of a gestational alloimmune disease, and occurrence of severe neonatal hemochromatosis in at-risk pregnancies can be significantly reduced by treatment with high-dose intravenous immunoglobulin during gestation.
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Affiliation(s)
- Peter F Whitington
- Children's Memorial Hospital, Mail Box 57, 2300 Children's Plaza, Chicago, IL 60614, USA.
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28
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Abstract
The aim of this article is to provide essential information for hepatologists, who primarily care for adults, regarding liver-based inborn errors of metabolism with particular reference to those that may be treatable with liver transplantation and to provide adequate references for more in-depth study should one of these disease states be encountered.
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Affiliation(s)
- Keli Hansen
- Division of Transplant Surgery and Division of Gastroenterology, Children's Hospital and Regional Medical Center, Seattle, WA 98105, USA
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29
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Thornton MP, Marven SS, Tanner MS, Gürtl-Lackner B. Neonatal haemochromatosis associated with gastroschisis. Pediatr Surg Int 2008; 24:637-9. [PMID: 18338135 DOI: 10.1007/s00383-008-2129-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/27/2008] [Indexed: 11/24/2022]
Abstract
We describe, to our knowledge, the first case of progressive neonatal liver failure due to neonatal haemochromatosis (NH) occurring in an infant with a gastroschisis and review the literature regarding these two conditions. A 1,665 g male infant with antenatally diagnosed gastroschisis was born with a severe coagulopathy, anaemia, thrombocytopenia, hypoglycaemia and jaundice. He developed progressive liver failure, complicated by necrotising enterocolitis. Serum ferritin was elevated at 1,459 microg/L. He died on day 40 and a limited post-mortem examination confirmed significant hepatic siderosis with fibrosis and cholestasis, and siderosis of the pancreas. Although no genetic aetiology for gastroschisis has been identified, an occasional inherited tendency has been observed. There is also evidence to support an autosomal recessive inheritance in NH.
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Affiliation(s)
- M P Thornton
- Paediatric Surgical Unit, Sheffield Children's Hospital, Western Bank, Sheffield, S10 2TH, UK.
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30
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Abstract
The aim of this article is to provide essential information for hepatologists, who primarily care for adults, regarding liver-based inborn errors of metabolism with particular reference to those that may be treatable with liver transplantation and to provide adequate references for more in-depth study should one of these disease states be encountered.
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Affiliation(s)
- Keli Hansen
- Children's Hospital and Regional Medical Center, Seattle, WA 98105, USA.
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31
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Regression of severe fibrotic liver disease in 2 children with neonatal hemochromatosis. J Pediatr Gastroenterol Nutr 2008; 46:329-33. [PMID: 18376253 DOI: 10.1097/mpg.0b013e318046772f] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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32
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Timpani G, Foti F, Nicolò A, Nicotina PA, Nicastro E, Iorio R. Is exchange transfusion a possible treatment for neonatal hemochromatosis? J Hepatol 2007; 47:732-5. [PMID: 17869371 DOI: 10.1016/j.jhep.2007.07.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2007] [Revised: 07/10/2007] [Accepted: 07/16/2007] [Indexed: 12/15/2022]
Abstract
Neonatal hemochromatosis is a rare congenital disorder of the liver associated to a poor prognosis. Liver transplantation is often required, since no effective medical treatment has been found. Despite mounting evidence of an alloimmune etiology of this condition, exchange transfusion has never been proposed as a specific treatment for neonatal hemochromatosis. Here we describe two siblings affected by neonatal hemochromatosis. The first, a female, died at 18 days of severe coagulopathy and acute renal failure, diagnosed as affected by neonatal hemochromatosis only when the second sibling was suspected as being affected by the same disease. The second child showed a rapidly worsening coagulopathy which was treated with two exchange transfusions, followed by rapid clinical and laboratory improvement, before reaching a definite diagnosis of neonatal hemochromatosis. He is healthy at present after a follow-up of 12 months. Although exchange transfusion has never been considered as treatment for neonatal hemochromatosis, this case suggests that it could be a feasible treatment option for children affected by this disease, as for other alloimmune conditions.
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33
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Carrabin N, Cordier MP, Gaucherand P. Traitement par immunoglobulines pendant la grossesse chez deux patientes à risque de récurrence d'hémochromatose néonatale. ACTA ACUST UNITED AC 2007; 36:409-12. [PMID: 17446006 DOI: 10.1016/j.jgyn.2007.03.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2007] [Revised: 02/15/2007] [Accepted: 03/15/2007] [Indexed: 10/28/2022]
Abstract
Two patients, with prior affected children with Neonatal Haemochromatosis [NH], benefited from intravenous immunoglobulin treatment during their following pregnancy in order to prevent recurrent NH. Whereas NH is a severe disease with high risk of recurrence and high mortality rate (about 80%), a recent treatment was suggested in the USA, which seems to completely modify the prognosis of this pathology. We proposed this treatment for two patients with indeed apparent benefit, giving birth to two healthy babies.
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Affiliation(s)
- N Carrabin
- Pavillon K, hôpital Edouard-Herriot, 8, place d'Arsonval, 69008 Lyon, France.
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34
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Heffron T, Pillen T, Welch D, Asolati M, Smallwood G, Hagedorn P, Fasola C, Solis D, Rodrigues J, DePaolo J, Spivey J, Martinez E, Henry S, Romero R. Medical and surgical treatment of neonatal hemochromatosis: single center experience. Pediatr Transplant 2007; 11:374-8. [PMID: 17493216 DOI: 10.1111/j.1399-3046.2006.00675.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
NH is a rare disorder of iron storage in newborns resulting in rapid liver failure. Outcomes are dismal with 20-30% survival. We report our experience in eight children with NH. Assessment of liver function included admission PT and serum levels of FV and FVII. Medical treatment (antioxidant cocktail) was started in all patients, with chelation therapy in six. Of these six, three survived with medical treatment alone. The other three underwent liver transplant. One died 158 days after transplant to sepsis: two are well more than five yr after transplant. The two neonates who did not receive chelation therapy, died to multi-organ failure and sepsis. In summary, five children (62.5%) survived long-term. In the three transplanted, one- and five-yr-survival was 66%. Older children with compromised synthetic liver function (FVII levels < or = 15%) required liver replacement for survival. Early referral to a tertiary care center is essential to increase survival of these children with a rare and otherwise fatal disease. Single center experience of children with NH is here presented. Potentials for survival improvement with of medical and surgical treatment are examined.
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Affiliation(s)
- Thomas Heffron
- Children's Healthcare of Atlanta at Egleston, Pediatric Liver Transplantation, Atlanta, GA, USA
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35
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36
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Abstract
PURPOSE OF REVIEW This review summarizes publications in pediatric hepatobiliary disease from the past year. These studies contribute to the understanding of the epidemiology, histopathology, predictors of outcome and treatment of some important pediatric liver and biliary disorders. RECENT FINDINGS Advances in nonalcoholic fatty liver disease, primary sclerosing cholangitis, neonatal hemochromatosis, acute liver failure (from the Pediatric Acute Liver Failure Study Group), and liver transplantation are summarized. SUMMARY Continued investigation into these hepatobiliary disorders has the potential to significantly impact the health of children.
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Affiliation(s)
- Christine K Lee
- Division of Gastroenterology and Nutrition, Children's Hospital Boston, Harvard Medical School, Boston, Massachusetts 02115, USA
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37
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Abstract
Both iron deficiency and iron excess during the fetal and neonatal period bode poorly for developing organ systems. Maternal conditions such as iron deficiency, diabetes mellitus, hypertension and smoking, and preterm birth are the common causes of perinatal iron deficiency. Long-term neurodevelopmental impairments and predisposition to future iron deficiency that are prevalent in infants with perinatal iron deficiency require early diagnosis, optimal treatment and adequate follow-up of infants at risk for the condition. However, due to the potential for oxidant-mediated tissue injury, iron overload should be avoided in the perinatal period, especially in preterm infants.
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Affiliation(s)
- Raghavendra Rao
- Division of Neonatology, Department of Pediatrics, University of Minnesota, Minneapolis, MN, USA.
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38
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McDiarmid S, Gish RG, Horslen S, Mazariegos GV. Model for end-stage liver disease (MELD) exception for unusual metabolic liver diseases. Liver Transpl 2006; 12:S124-7. [PMID: 17123278 DOI: 10.1002/lt.20973] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Sue McDiarmid
- University of California at Los Angeles, Los Angeles, CA, USA
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39
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Grabhorn E, Richter A, Burdelski M, Rogiers X, Ganschow R. Neonatal hemochromatosis: long-term experience with favorable outcome. Pediatrics 2006; 118:2060-5. [PMID: 17079579 DOI: 10.1542/peds.2006-0908] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVE Neonatal hemochromatosis is a severe, often fatal multiorgan disorder of iron metabolism. Liver transplantation can be curative; the benefit of antioxidant treatment is discussed controversially. We summarize our experience with neonatal hemochromatosis over the past 13 years. METHODS A retrospective study was performed of 16 patients with acute liver failure attributable to neonatal hemochromatosis between 1992 and 2004. RESULTS Median age at the onset of neonatal hemochromatosis was 2 days (range: 0-21 days). Median weight at the time of diagnosis was 2900 g (range: 1520-4200 g). All patients had elevated ferritin levels (median: 4179 microg/L), and transferrin saturation (median: 99%). Fourteen patients (87.5%) showed significant hepatocyte siderosis in biopsies; 4 children had additional iron deposition in extrahepatic tissue. Four patients were diagnosed by MRI. Seven infants received liver transplants, 5 of them in combination with a preceding antioxidant treatment. Four children (25%) received antioxidants without the necessity of liver transplantation and were in good clinical condition at the time of this evaluation. Five patients (31.3%) died, 3 of them without any treatment because of initial fulminant multiorgan failure. In September 2005, 68.7% of the patients were still alive after a median follow-up of 5 years. CONCLUSIONS Neonatal hemochromatosis is a severe metabolic disease, but early antioxidant treatment and liver transplantation in addition to optimal medical care can improve the outcome dramatically. Children with moderate liver failure can survive without liver transplantation, but should be monitored closely for deterioration.
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Affiliation(s)
- Enke Grabhorn
- Department of Pediatrics, Pediatric Gastroenterology and Hepatology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246 Hamburg, Germany.
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40
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Debray D, Yousef N, Durand P. New management options for end-stage chronic liver disease and acute liver failure: potential for pediatric patients. Paediatr Drugs 2006; 8:1-13. [PMID: 16494508 DOI: 10.2165/00148581-200608010-00001] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The management of children with end-stage chronic liver disease and acute liver failure mandates a multidisciplinary approach and intense monitoring. In recent years, considerable progress has been made in developing specific and supportive medical measures, but studies and publications have mainly concerned adult patients. Therapeutic approaches to complications of end-stage chronic liver disease and acute liver failure (e.g. refractory ascites, hepatorenal syndrome, encephalopathy, and cerebral edema) that may be applied to children are reviewed in this article.Mild-to-moderate ascites should be managed by modest salt restriction and oral diuretic therapy in the first instance. Large volume paracentesis associated with colloid volume expansion and diuretic therapy may be effective for acute relief. Treatment of hepatorenal syndrome type 1 with vasopressin analogs (terlipressin) is recommended prior to liver transplantation in order to improve renal function. Prevention and treatment of chronic hepatic encephalopathy are directed primarily at controlling the events that may precipitate hepatic encephalopathy and at reducing ammonia generation and increasing its detoxification or removal. In addition to reduction of gut ammonia production using non-absorbable disaccharides such as lactulose and/or antibacterials such as neomycin, sodium benzoate may be used on a long-term basis to prevent, stabilize, or improve hepatic encephalopathy. The management of hepatic encephalopathy in acute liver failure is considerably more unsatisfactory; treatment is aimed at preventing brain edema and intracranial hypertension. Extracorporeal liver support devices are now used commonly in critically ill children with acute renal failure, advanced hepatic encephalopathy, cerebral edema, intracranial hypertension, and severe coagulopathy. Continuous renal replacement therapy could potentially help support patients until liver transplantation is performed or liver regeneration occurs. The Molecular Adsorbent Recirculating System (MARS or albumin dialysis) is the liver support system most frequently used worldwide in adults and appears to offer distinct advantages over hepatocyte-based systems. There are no specific medical therapies or devices that can correct all of the functions of the liver. Apart from a few metabolic diseases presenting with severe liver dysfunction for which specific medical therapies may preclude the need for liver transplantation, liver transplantation still remains the only definitive therapy in most instances of end-stage chronic liver disease and acute liver failure. Future research should focus on gaining a better understanding of the mechanisms responsible for liver cell death and liver regeneration, as well as developments in hepatocyte transplantation and liver-directed gene therapy.
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Affiliation(s)
- Dominique Debray
- Paediatric Hepatology Unit, Hôpital Bicêtre-Assistance Publique-Hôpitaux de Paris, Cedex, France.
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41
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Abstract
Liver transplantation has become the accepted standard of care in the treatment of a child with a failing liver. Advances in the management of critical care and immunosuppression along with the development of innovative operative procedures have improved outcome such that 5-year survival rates of 80% to 90% are expected following liver transplantation. Organ allocation schemes have evolved in an effort to better stratify recipient risk thereby more appropriately distributing deceased donor grafts. A persistent shortage of appropriate donors continues to contribute to patient mortality. The consequences of long-term immunosuppression have become increasingly apparent such that health care providers need to be aware of the side effects of chronic immunosuppression. New strategies need to be defined to minimize the need of continuous immunosuppression. The continued success of pediatric liver transplantation will require multi-disciplinary health care teams comprised of general pediatricians, pediatric hepatologists, transplant surgeons, and transplant coordinators who focus on the complex needs of the transplant recipient.
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Affiliation(s)
- Gregory M Tiao
- Department of Pediatric Surgery, Pediatric Liver Care Center, Cincinnati Children's Hospital Medical Center, University of Cincinnati, Cincinnati, Ohio 45229, USA.
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42
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Affiliation(s)
- Peter F Whitington
- Department of Pediatrics, Northwestern University Feinberg Medical School, Children's Memorial Hospital, Chicago, IL, USA.
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43
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Abstract
In the past two decades, pediatric liver transplantation has become the state-of-the-art operation with anticipated success and limited mortality. The future success of pediatric liver transplantation will require thoughtful solutions to the delicate balance of risk to donors and recipients, the complex needs of the acute postoperative patient, and the long-term challenges of chronic immunosuppression in these previously unsalvageable patients.
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Affiliation(s)
- Greg Tiao
- Department of Pediatric Surgery, Pediatric Liver Care Center, Cincinnati Children's Hospital Medical Center, University of Cincinnati, 3333 Burnet Avenue Cincinnati, OH 45229, USA
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44
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Siah CW, Trinder D, Olynyk JK. Iron overload. Clin Chim Acta 2005; 358:24-36. [PMID: 15885682 DOI: 10.1016/j.cccn.2005.02.022] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2005] [Revised: 02/22/2005] [Accepted: 02/23/2005] [Indexed: 02/08/2023]
Abstract
Iron overload disorders represent a heterogenous group of conditions resulting from inherited and acquired causes. With the discovery of new proteins and genetic defects we have gained greater insight into their causation at the molecular level and the complex mechanisms of normal and disordered iron homeostasis. Here we review the normal mechanisms and regulation of gastrointestinal iron absorption and liver iron transport and their dysregulation in iron overload states. Advances in the understanding of the natural history of iron overload disorders and new methods for clinical detection and management of hereditary hemochromatosis are also reviewed.
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Affiliation(s)
- Chiang W Siah
- School of Medicine and Pharmacology, University of Western Australia, Fremantle Hospital Campus, P.O. Box 480, Fremantle 6959, Western Australia
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45
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Abstract
Acute liver failure (ALF) in neonates is a rare but often fatal event. Though in adults and older children, a main symptom of ALF is hepatic encephalopathy, this is very difficult to diagnose and prove in infants. Causes of ALF in neonates encompass metabolic, infectious and haematological disorders, congenital vascular/heart abnormalities, and drugs. Infants with ALF should only be treated in specialised paediatric hepatology centres with facilities for liver transplantation, since for many liver transplant, with a long term survival of over 60%, is the only therapeutic option.
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Affiliation(s)
- Anil Dhawan
- Paediatric Liver Centre, Institute of Liver Studies, Variety Club Children's Hospital, King's College School of Medicine at King's College Hospital, Denmark Hill, London SE5 9RS, UK
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46
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Abstract
Neonatal hemochromatosis (NH) is a rare disease of gestation that results in fetal liver injury and extrahepatic siderosis. The etiology of NH is not fully understood. However, the rate of recurrence of NH in the pregnancy after an affected one is approximately 80%. A spectrum of liver disease has been recognized, spanning from liver failure in the fetus or neonate to infants that survive with medical therapy. Here we report on 2 sets of fraternal twins, each set with a gross disparity in the severity of presentation: 1 infant with liver failure and the other nearly unaffected. These findings suggest a need to look carefully for subclinical disease in the siblings of patients with NH by using sensitive tests such as those for ferritin and alpha-fetoprotein. They also suggest that affected infants may be missed when using routine clinical testing, which would lead to the apparent rate of recurrence, understating the actual recurrence rate.
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Affiliation(s)
- Udeme D Ekong
- Department of Pediatrics, Northwestern University Feinberg School of Medicine, Children's Memorial Hospital, Chicago, Illinois, USA
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47
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Leonis MA, Balistreri WF. Neonatal hemochromatosis: it's OK to say "NO" to antioxidant-chelator therapy. Liver Transpl 2005; 11:1323-5. [PMID: 16237698 DOI: 10.1002/lt.20541] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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48
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Rodrigues F, Kallas M, Nash R, Cheeseman P, D'Antiga L, Rela M, Heaton ND, Mieli-Vergani G. Neonatal hemochromatosis--medical treatment vs. transplantation: the king's experience. Liver Transpl 2005; 11:1417-24. [PMID: 16237701 DOI: 10.1002/lt.20497] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The aim of our study was to compare the outcome of medical treatment vs. liver transplantation in infants with neonatal hemochromatosis (NH) referred to King's College Hospital from 1990-2002. We conducted a retrospective review of 19 children from 14 families. Fifteen children presented at birth and 4 during the first week of life. One child was diagnosed by cordocentesis at 30 weeks of gestation. NH recurred in 7 of 9 families with further children. In one family, 2 children from different fathers were affected. All patients had elevated ferritin levels, hypoalbuminemia, and coagulopathy. Liver histology showed parenchymal collapse, diffuse fibrosis, and moderate to severe hepatocyte hemosiderin deposition. Extrahepatic siderosis was demonstrated by magnetic resonance in 2 patients, lip biopsy in 3, and autopsy in 10. Ten patients received a chelation-antioxidant cocktail: 1 survived, 4 died, and 5 required liver transplantation, of whom 2 died. One of the 9 infants who did not receive the cocktail survived with medical support, 3 died, and 5 required transplantation, of whom 3 died. Seven children are alive, 5 after transplantation, at a median follow-up of 5.6 years, with excellent quality of life and no recurrence of the disease. In conclusion, chelation-antioxidant treatment does not appear to modify the prognosis of NH, at least in severe cases. Liver transplantation, with 50% long-term survival, remains the treatment of choice and should be promptly offered to those infants who do not improve with supportive medical treatment.
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MESH Headings
- Antioxidants/therapeutic use
- Chelating Agents/therapeutic use
- Cohort Studies
- Drug Therapy, Combination
- Female
- Follow-Up Studies
- Hemochromatosis/diagnosis
- Hemochromatosis/drug therapy
- Hemochromatosis/mortality
- Hemochromatosis/surgery
- Humans
- Infant, Newborn
- Infant, Newborn, Diseases/diagnosis
- Infant, Newborn, Diseases/drug therapy
- Infant, Newborn, Diseases/mortality
- Infant, Newborn, Diseases/surgery
- Liver Transplantation/adverse effects
- Liver Transplantation/methods
- Male
- Probability
- Retrospective Studies
- Risk Assessment
- Sensitivity and Specificity
- Severity of Illness Index
- Statistics, Nonparametric
- Survival Analysis
- Treatment Outcome
- United Kingdom
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Affiliation(s)
- Fernanda Rodrigues
- Institute of Liver Studies, King's College London School of Medicine, King's College Hospital, London, UK
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49
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Azzam RK, Alonso EM, Emerick KM, Whitington PF. Safety of percutaneous liver biopsy in infants less than three months old. J Pediatr Gastroenterol Nutr 2005; 41:639-43. [PMID: 16254523 DOI: 10.1097/01.mpg.0000184608.22928.f9] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVES To evaluate the safety, outcomes, and complications of percutaneous liver biopsies (PLB) in infants aged 0 to 3 months. METHODS We retrospectively reviewed the hospital records of all infants less than 3 months old who underwent PLB at Children's Memorial Hospital between July 1, 1997 and June 30, 2004 for complications surrounding the procedure and risk factors that might lead to complications. RESULTS Sixty-six PLBs were performed in 63 infants. Most patients tolerated the procedure without complications. Twelve complications were recorded, for an overall complication rate of 18%. Of these, five were directly related to the procedure, and seven were sedation related. Three patients experienced a drop in hemoglobin greater than 2 gm/dL, one patient developed a bile leak, and one developed a skin hematoma. Seven patients had respiratory difficulty related to sedation, which manifested as increased work of breathing or decreased respiratory rate with depression in pulse oximetry. CONCLUSION We conclude that PLB in young infants is associated with a somewhat higher risk of complications than in older children, particularly complications related to sedation.
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Affiliation(s)
- R K Azzam
- Department of Pediatrics, Children's Memorial Hospital, Northwestern University Feinberg Medical School, Chicago, Illinois 60614, USA
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50
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Whitington PF, Kelly S, Ekong UD. Neonatal hemochromatosis: fetal liver disease leading to liver failure in the fetus and newborn. Pediatr Transplant 2005; 9:640-5. [PMID: 16176424 DOI: 10.1111/j.1399-3046.2005.00357.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Acute liver failure in the newborn is relatively rare but often fatal. The broadest definition of acute liver failure is failure of the vital functions of the liver occurring within weeks or a few months of the onset of clinical liver disease. Therefore, by definition, any liver failure in the newborn can be construed to be acute liver failure. A second component of the general definition of acute liver failure is the lack of known preexisting liver disease. In the case of neonatal acute liver failure, preexisting disease would by definition be liver disease that affects the fetus. Almost nothing is known about fetal onset liver failure, and there is no literature addressing the subject. This review will address fetal liver disease that leads to liver failure in the fetus or newborn.
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Affiliation(s)
- Peter F Whitington
- Department of Pediatrics, Northwestern University Feinberg School of Medicine, Children's Memorial Hospital, The Siragusa Transplantation Center, Chicago, IL 60614, USA.
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