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Vidavalur R, Bhutani VK. Managing the Historic Burden of Kernicterus Mortality in India. Indian J Pediatr 2024:10.1007/s12098-024-05227-6. [PMID: 39167302 DOI: 10.1007/s12098-024-05227-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Accepted: 07/25/2024] [Indexed: 08/23/2024]
Abstract
Prevention of neonatal bilirubin injury exemplifies success of systems approach to avert adverse neonatal and childhood outcomes that rely on strategies including prenatal identification of Rhesus sensitization, universal maternal blood typing, risk assessment for neonatal extreme hyperbilirubinemia (EHB), unfettered access to safe, effective phototherapy, and application of patient safety principles. India's diverse landscape suggests varied real-time experiences of neonatal hyperbilirubinemia and consequent infant mortality rates (IMR). Utilizing Global Burden of Disease (GBD) database, the authors examined national and subnational trends, infant mortality timing, and the disease burden from hemolytic and perinatal jaundice over 30 y (1999 to 2019). They also assessed the correlation of EHB-IMR with socio-demographic index and health expenditure per capita, estimating economic losses from EHB-related infant mortality to guide policy decisions at national and state domains. From 1990 to 2019, India delivered 811,078,415 livebirths of which, 1,189,856 infant deaths were due to EHB. EHB-related deaths decreased from 57,773 in 1990 to 19,664 in 2019, a 60% reduction vs. 40% in overall IMR. Early (0-6 d), late (7-27 d), and post-neonatal (28-364 d) deaths accounted for 61%, 34%, and 5% of mortality, respectively. Uttar Pradesh and Bihar contributed to 38% of all EHB deaths. Economic analysis estimate losses between US $7.2 and 11.7 billion for the year 2019 secondary to EHB-related mortality. The present analysis reveals consistent declines across all states to reach current EHB-IMR of 0.8 per 1,000 live-births in India by 2019. Significant economic impact of lost human productivity highlight ongoing need for targeted life-saving public health strategies.
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Affiliation(s)
- Ramesh Vidavalur
- Department of Clinical Pediatrics, Cayuga Medical Center/Weill Cornell Medicine, 101 Dates Drive, Ithaca, NY, 14850, USA.
| | - Vinod K Bhutani
- Stanford University School of Medicine, Lucile Salter Packard Children's Hospital, Stanford, CA, 94305, USA
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Ouerradi N, Ayyad A, Messaoudi S, Amrani R. Forgoing Exchange Transfusion in Neonatal Hyperbilirubinemia: A Single-Center Retrospective Cohort Study. Cureus 2024; 16:e56749. [PMID: 38650795 PMCID: PMC11033529 DOI: 10.7759/cureus.56749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/22/2024] [Indexed: 04/25/2024] Open
Abstract
INTRODUCTION Unconjugated hyperbilirubinemia is part of the everyday life of the neonatal period as it reflects the adaptation of the metabolism of bilirubin. The neonatal hyperbilirubinemia usually resolves spontaneously, but it can also be the cause of an acute or chronic encephalopathy known as kernicterus. Regardless of the cause, the goal of therapy is to prevent this neurotoxicity while not causing undue harm. Phototherapy and, if it is unsuccessful, exchange transfusion (ECT) remain the primary treatment modalities used to keep the maximal total serum bilirubin (TSB) below pathologic levels. MATERIALS AND METHODS This is a descriptive retrospective cohort study of 69 live neonates hospitalized in the Department of Neonatology and Neonatal Resuscitation of Mohammed VI University Hospital with unconjugated hyperbilirubinemia requiring ECT and treated with intensive phototherapy instead, spanning five years from March 2016 to March 2021. We aim to demonstrate the effectiveness of phototherapy in achieving prolonged reduction of bilirubin levels and the prevention of neurological complications and to compare our results with those in the literature. RESULTS The use of intensive phototherapy in the treatment of neonatal unconjugated hyperbilirubinemia is very effective in lowering total serum bilirubin when its level is in the range of exchange transfusion, and it has succeeded in preventing the neurological complications of severe hyperbilirubinemia. CONCLUSION Through this study, it can be seen that phototherapy is an efficacious, simpler, and less hazardous alternative to exchange transfusion in achieving a sustained reduction of bilirubin levels and preventing neurological complications.
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Affiliation(s)
- Nourelhouda Ouerradi
- Neonatology and Neonatal Resuscitation, Mohammed First University Faculty of Medicine, Oujda, MAR
| | - Anass Ayyad
- Neonatology and Neonatal Resuscitation, Mohammed First University Faculty of Medicine, Oujda, MAR
| | - Sahar Messaoudi
- Neonatology and Neonatal Resuscitation, Mohammed First University Faculty of Medicine, Oujda, MAR
| | - Rim Amrani
- Neonatology and Neonatal Resuscitation, Mohammed First University Faculty of Medicine, Oujda, MAR
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Wang X, Xiao T, Wang J, Wu B, Wang H, Lu Y, Wang Y, Chen B, Hu L, Cao Y, Zhang R, Cheng G, Wang L, Li Z, Dong X, Yang L, Zhou W. Clinical and genetic risk factors associated with neonatal severe hyperbilirubinemia: a case-control study based on the China Neonatal Genomes Project. Front Genet 2024; 14:1292921. [PMID: 38274110 PMCID: PMC10808734 DOI: 10.3389/fgene.2023.1292921] [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: 09/12/2023] [Accepted: 12/19/2023] [Indexed: 01/27/2024] Open
Abstract
Objective: We aimed to investigate the clinical and genetic risk factors associated with neonatal severe unconjugated hyperbilirubinemia. Methods: This was a retrospective, 1:1 matched, case-control study. We included 614 neonates diagnosed with severe unconjugated hyperbilirubinemia (serum total bilirubin level ≥425 μmol/L or serum total bilirubin concentration that met exchange transfusion criteria) from the China Neonatal Genomes Project in Children's Hospital of Fudan University. Clinical exome sequencing data were analyzed using a data analysis pipeline of Children's Hospital of Fudan University. The factors associated with severe unconjugated hyperbilirubinemia were assessed using univariable and multivariable logistic regression analyses. Interaction analyses were examined between clinical and genetic risk factors. Results: ABO/Rh incompatibility hemolysis (odds ratio [OR] 3.36, 95% confidence interval [CI] 2.32-4.86), extravascular hemorrhage (OR 2.95, 95% CI 2.24-3.89), weight loss (OR 5.46, 95% CI 2.88-10.36), exclusive breastmilk feeding (OR 3.56, 95% CI 2.71-4.68), and the homozygous mutant of UGT1A1 211G>A (OR 2.35, 95% CI 1.54-3.59) were all identified as factors significantly associated with severe unconjugated hyperbilirubinemia. The presence of UGT1A1 211G>A mildly increased the risk of severe unconjugated hyperbilirubinemia caused by ABO/Rh incompatibility hemolysis (OR 3.98, 95% CI 2.19-7.23), although the effect is not statistically significant. Conclusion: ABO/Rh incompatibility hemolysis, extravascular hemorrhage, weight loss, exclusive breastmilk feeding, and the homozygous mutant of UGT1A1 211G>A were found to be risk factors for severe unconjugated hyperbilirubinemia. Clinical factors remain the most crucial and preventable determinants in managing severe unconjugated hyperbilirubinemia, with a minimal genetic contribution. The establishment of preconception care practices and the reinforcement of screening for the aforementioned risk factors are essential steps for preventing severe unconjugated hyperbilirubinemia.
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Affiliation(s)
- Xiao Wang
- Center for Molecular Medicine, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China
| | - Tiantian Xiao
- Chengdu Women’s and Children’s Central Hospital, The Affiliated Women’s and Children’s Hospital, School of Medicine, University of Electronic Science and Technology of China (UESTC), Chengdu, China
| | - Jin Wang
- Department of Neonatology, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China
| | - Bingbing Wu
- Center for Molecular Medicine, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China
| | - Huijun Wang
- Center for Molecular Medicine, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China
| | - Yulan Lu
- Center for Molecular Medicine, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China
| | - Yaqiong Wang
- Center for Molecular Medicine, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China
| | - Bin Chen
- Department of Neonatology, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China
| | - Liyuan Hu
- Department of Neonatology, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China
| | - Yun Cao
- Department of Neonatology, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China
| | - Rong Zhang
- Department of Neonatology, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China
| | - Guoqiang Cheng
- Department of Neonatology, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China
| | - Laishuan Wang
- Department of Neonatology, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China
| | - Zhihua Li
- Department of Neonatology, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China
| | - Xinran Dong
- Center for Molecular Medicine, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China
| | - Lin Yang
- Department of Neonatology, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China
- Department of Pediatric Endocrinology and Inherited Metabolic Diseases, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China
| | - Wenhao Zhou
- Center for Molecular Medicine, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China
- Department of Neonatology, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China
- Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangzhou, China
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Li Q, Deng X, Yan J, Sun X, Dong X, Chen X, Han S, Huo J, Yu Z. Neonatal Severe Hyperbilirubinemia Online Registry in Jiangsu Province: protocol for a multicentre, prospective, open, observational cohort study. BMJ Open 2021; 11:e040797. [PMID: 33550236 PMCID: PMC7925859 DOI: 10.1136/bmjopen-2020-040797] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
INTRODUCTION Severe hyperbilirubinaemia in newborns can be easily complicated by acute bilirubin encephalopathy or even kernicterus, which could lead to neurological sequelae or death. However, there is no systematic study of the management of severe hyperbilirubinaemia in China. The Neonatal Severe Hyperbilirubinemia Online Registry study aims to investigate the management of jaundice before admission, risk factors and outcomes of severe hyperbilirubinaemia in a real-world setting in China. METHODS AND ANALYSIS This is a prospective, multicentre, open, observational cohort study. From May 2020 to April 2023, more than 2000 patients with neonatal severe hyperbilirubinaemia from 13 tertiary hospitals in Jiangsu Province will join the study. Demographic data and treatment information will be collected from their clinical data. Management measures for jaundice before admission will be collected by the WeChat applet (called 'Follow-up of jaundice') after being provided by the patient's guardian using a mobile phone. Follow-up data will include cranial MRI examination results, brainstem auditory-evoked potential or automatic auditory brainstem response, physical examination results and Griffiths Development Scales-Chinese at the corrected ages of 3-6 months and 1 and 2 years. Results and conclusions will be recorded using 'Follow-up of jaundice.' In-hospital outcomes, including severity of hyperbilirubinaemia (severe, extreme, hazardous), acute bilirubin encephalopathy (mild, moderate, severe) and survival status (death or survival), will be collected at discharge. Follow-up outcomes will include loss to follow-up, survival status and kernicterus (yes or no) at 2 years. The research will enhance our comprehensive knowledge of jaundice management before admission, risk factors and outcomes of severe hyperbilirubinaemia in China, which will ultimately help to reduce the incidence of neonatal severe hyperbilirubinaemia. ETHICS AND DISSEMINATION Our protocol has been approved by the Medical Ethics Committee of Nanjing Maternity and Child Health Care Hospital. We will present our findings at national conferences and peer-reviewed paediatrics journals. TRIAL REGISTRATION NUMBER NCT04251286.
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Affiliation(s)
- Qianqian Li
- Neonatology, Xuzhou Maternity and Child Health Care Hospital, Xuzhou, China
| | - Xiaoyi Deng
- Neonatology, Xuzhou Maternity and Child Health Care Hospital, Xuzhou, China
| | - Junmei Yan
- Neonatology, Xuzhou Maternity and Child Health Care Hospital, Xuzhou, China
| | - Xiaofan Sun
- Neonatology, Nanjing Maternity and Child Health Care Hospital, Nanjing, China
| | - Xiaoyue Dong
- Neonatology, Nanjing Maternity and Child Health Care Hospital, Nanjing, China
| | - Xiaohui Chen
- Neonatology, Nanjing Maternity and Child Health Care Hospital, Nanjing, China
| | - Shuping Han
- Neonatology, Nanjing Maternity and Child Health Care Hospital, Nanjing, China
| | - Jie Huo
- Neonatology, Yangzhou Maternity and Child Health Care Hospital, Yangzhou, China
| | - Zhangbin Yu
- Neonatology, Nanjing Maternity and Child Health Care Hospital, Nanjing, China
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Wolf MF, Childers J, Gray KD, Chivily C, Glenn M, Jones L, Kpa M, McMannen T, Reyes I, Zimmerman KO, Clark RH, Greenberg RG. Exchange transfusion safety and outcomes in neonatal hyperbilirubinemia. J Perinatol 2020; 40:1506-1512. [PMID: 32152492 PMCID: PMC8021453 DOI: 10.1038/s41372-020-0642-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 02/11/2020] [Accepted: 02/25/2020] [Indexed: 11/09/2022]
Abstract
OBJECTIVE To characterize the prevalence of exchange transfusion (ET), clinical characteristics of infants receiving ET, and ET-associated morbidity and mortality. STUDY DESIGN We conducted a multicenter cohort study of infants ≥23 weeks of gestational age (GA) with hyperbilirubinemia who underwent ET within 30 days of birth from 1997 to 2016. We examined clinical characteristics and adverse events after ET. We used multivariable logistic regression to examine the association between clinical risk factors and death. RESULT A total of 1252 infants were included; 4% died within 7 days of ET and 6% died before discharge. Compared with infants ≥37 weeks of GA, infants ≤29 weeks of GA had greater odds of death (adjusted odds ratio [95% confidence interval] = 20.08 [7.32, 55.07]). CONCLUSIONS Infants ≤ 29 weeks of GA had greater odds of death following ET compared with term infants. These data will support clinicians in evaluating risks and prognosis for infants who require ET.
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Affiliation(s)
- Mattie F Wolf
- Department of Pediatrics, Duke University School of Medicine, Durham, NC, USA
| | - Julie Childers
- Department of Pediatrics, Duke University School of Medicine, Durham, NC, USA
| | - Keyaria D Gray
- Department of Pediatrics, Duke University School of Medicine, Durham, NC, USA
| | - Caroline Chivily
- Duke Clinical Research Institute, Duke University School of Medicine, Durham, NC, USA
| | - Mike Glenn
- Duke Clinical Research Institute, Duke University School of Medicine, Durham, NC, USA
| | - Laila Jones
- Duke Clinical Research Institute, Duke University School of Medicine, Durham, NC, USA
| | - Mini Kpa
- Duke Clinical Research Institute, Duke University School of Medicine, Durham, NC, USA
| | - Taylor McMannen
- Duke Clinical Research Institute, Duke University School of Medicine, Durham, NC, USA
| | - Isaias Reyes
- Duke Clinical Research Institute, Duke University School of Medicine, Durham, NC, USA
| | - Kanecia O Zimmerman
- Department of Pediatrics, Duke University School of Medicine, Durham, NC, USA
- Duke Clinical Research Institute, Duke University School of Medicine, Durham, NC, USA
| | | | - Rachel G Greenberg
- Department of Pediatrics, Duke University School of Medicine, Durham, NC, USA.
- Duke Clinical Research Institute, Duke University School of Medicine, Durham, NC, USA.
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Rajan M, Singh J, Singh Dalal J. Exchange blood transfusion in neonates with severe hyperbilirubinemia in a lower-middle-income country: can we minimise the incidence? Trop Doct 2020; 51:146-150. [PMID: 32981475 DOI: 10.1177/0049475520959731] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Our descriptive study examines the clinical profile of referred neonates who underwent exchange blood transfusion (EBT) and identifies possible interventions at peripheral hospitals to decrease their severe hyperbilirubinemia. Among the 38 neonates enrolled, the following were identified as potential clinical gaps in management: early discharge within 24 h of birth (57%); non-availability of ABORh blood grouping (43%); lack of anti-D immunoprophylaxis (75%); pathological weight loss because of inadequate breastfeeding (42%); and low usage of phototherapy. Because of late recognition, the mean age at admission was 5.4 ± 3.3 days, levels of total serum bilirubin (TSB) were 516.4 ± 123.1 µmol/L, and acute bilirubin encephalopathy (ABE) was seen in 45% of neonates. Rh iso-immunisation (39.5%), ABO iso-immunisation (21%) and sepsis (8%) were major risk factors for severe hyperbilirubinaemia. Quality prenatal screening identifying at-risk newborns, preventing early discharge after birth, a bilirubin nomogram risk assignment before discharge and assuring early recognition of hyperbiliubinaemia by parents may well minimise the incidence of EBT.
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Affiliation(s)
- Mahima Rajan
- Senior Resident, Department of Pediatrics, PGIMS, Rohtak, Haryana, India
| | - Jasbir Singh
- Senior Resident, Department of Pediatrics, PGIMS, Rohtak, Haryana, India
| | - Jagjit Singh Dalal
- Associate Professor and Head, Department of Neonatology, PGIMS, Rohtak, Haryana, India
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Hudson JA, Charron E, Maple B, Krom M, Heavner-Sullivan SF, Mayo RM, Dickes L, Rennert L. Baby-Friendly Hospital Initiative Is Associated with Lower Rates of Neonatal Hyperbilirubinemia. Breastfeed Med 2020; 15:176-182. [PMID: 31934778 DOI: 10.1089/bfm.2019.0220] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Background: The Baby-Friendly Hospital Initiative (BFHI) advances practices that support exclusive breastfeeding. BFHI practices are associated with increased breastfeeding rates, however, other patient outcomes are not well described. This study examined the association of BFHI practices with hyperbilirubinemia and phototherapy between groups of newborns born before and after BFHI implementation at an urban, tertiary academic medical center in South Carolina. Materials and Methods: We conducted a retrospective study of healthy, term newborns born between July and September 2011 (n = 956), before BFHI implementation, and newborns born during the same period in 2013 (n = 1,131) after BFHI implementation. Primary outcomes were neonatal hyperbilirubinemia, phototherapy treatment, and hospital readmissions for hyperbilirubinemia within 30 days of discharge. We compared rates of outcomes between the study groups using unadjusted and adjusted odds ratios (OR). Results: Among newborns born before versus after BFHI implementation, 20.3% versus 6.98% were diagnosed with hyperbilirubinemia (p < 0.001), 5.75% versus 1.95% received phototherapy (p < 0.001), and 0.31% versus 0.35% were readmitted to the hospital for hyperbilirubinemia within 30 days (p = 0.88). In adjusted analyses, newborns born after BFHI implementation were significantly less likely to develop neonatal hyperbilirubinemia (OR 0.28 [95% confidence intervals; CI 0.20-0.37]) and receive phototherapy treatment (OR 0.27 [95% CI 0.15-0.49]) than newborns born before BFHI implementation. Conclusions: Implementation of BFHI practices is associated with significant decreases in neonatal hyperbilirubinemia and phototherapy without affecting readmission rates. Exclusive breastfeeding has traditionally been considered a risk factor for the development of neonatal jaundice. This study demonstrates that BFHI practices may mitigate that risk.
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Affiliation(s)
- Jennifer A Hudson
- Department of Pediatrics, Prisma Health Upstate, Greenville, South Carolina
| | - Elizabeth Charron
- Department of Public Health Sciences and Recreation and Tourism Management, Clemson University, Clemson, South Carolina
| | - Britni Maple
- Department of Pediatrics, Prisma Health Upstate, Greenville, South Carolina
| | - Mark Krom
- Department of Pediatrics, Prisma Health Upstate, Greenville, South Carolina
| | - Smith F Heavner-Sullivan
- Department of Public Health Sciences and Recreation and Tourism Management, Clemson University, Clemson, South Carolina
| | - Rachel M Mayo
- Department of Public Health Sciences and Recreation and Tourism Management, Clemson University, Clemson, South Carolina
| | - Lori Dickes
- Department of Parks, Recreation and Tourism Management, Clemson University, Clemson, South Carolina
| | - Lior Rennert
- Department of Public Health Sciences and Recreation and Tourism Management, Clemson University, Clemson, South Carolina
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Das S, van Landeghem FKH. Clinicopathological Spectrum of Bilirubin Encephalopathy/Kernicterus. Diagnostics (Basel) 2019; 9:diagnostics9010024. [PMID: 30823396 PMCID: PMC6468386 DOI: 10.3390/diagnostics9010024] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Revised: 02/17/2019] [Accepted: 02/25/2019] [Indexed: 12/31/2022] Open
Abstract
Bilirubin encephalopathy/kernicterus is relatively rare, but continues to occur despite universal newborn screening. What is more interesting is the spectrum of clinical and even neuropathological findings that have been reported in the literature to be associated with bilirubin encephalopathy and kernicterus. In this review, the authors discuss the array of clinicopathological findings reported in the context of bilirubin encephalopathy and kernicterus, as well as the types of diagnostic testing used in patients suspected of having bilirubin encephalopathy or kernicterus. The authors aim to raise the awareness of these features among both pediatric neurologists and neuropathologists.
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Affiliation(s)
- Sumit Das
- Division of Neuropathology, University of Alberta and Stollery Children's Hospital, Edmonton, AB T6G 2B7, Canada.
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, AB T6G 2B7, Canada.
| | - Frank K H van Landeghem
- Division of Neuropathology, University of Alberta and Stollery Children's Hospital, Edmonton, AB T6G 2B7, Canada.
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, AB T6G 2B7, Canada.
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Bahr TM, Christensen RD, Agarwal AM, George TI, Bhutani VK. The Neonatal Acute Bilirubin Encephalopathy Registry (NABER): Background, Aims, and Protocol. Neonatology 2019; 115:242-246. [PMID: 30669144 DOI: 10.1159/000495518] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Accepted: 11/14/2018] [Indexed: 11/19/2022]
Abstract
BACKGROUND Acute bilirubin encephalopathy (ABE) is a potentially devastating condition that can lead to death or life-long neurodevelopmental handicaps. ABE is particularly tragic because it is, in theory, completely preventable. Progress toward its prevention has been hampered by the perception that the extreme hyperbilirubinemia giving rise to ABE typically has no clear causation, with the majority of previous cases being labeled as "idiopathic" neonatal jaundice. OBJECTIVES This research briefing is intended to inform readers of a new prospective study aimed at clarifying the causes of ABE. This is accomplished by identifying qualifying patients with ABE anywhere in the USA and then documenting their clinical characteristics and the results of testing 28 specific genetic associations in a web-based, institutional review board-approved, REDCap (research electronic data capture) deidentified registry. METHODS In this research briefing, we present an overview of ABE and discuss the problem that most patients in the past have been labeled as having "idiopathic" hyperbilirubinemia. We also present data supporting a new theory that most (perhaps all) ABE patients have mutations or polymorphisms in genes involved in bilirubin production or metabolism. We introduce a new registry seeking to enroll 100 neonates with ABE as a voluntary, deidentified database, with next generation sequencing of 28 genes involved in bilirubin production/metabolism provided to enrollees at no cost. RESULTS AND CONCLUSIONS The Neonatal Acute Bilirubin Encephalopathy Registry (NABER) study will correlate deidentified clinical and genetic data in order to clarify the underlying causes of hyperbilirubinemia in current ABE patients. We maintain that the improved understanding this study produces will constitute a needed step toward devising new clinical pathways and strategies for preventing ABE in neonates.
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Affiliation(s)
- Timothy M Bahr
- Division of Neonatology, Department of Pediatrics, University of Utah Health, Salt Lake City, Utah, USA,
| | - Robert D Christensen
- Division of Neonatology, Department of Pediatrics, University of Utah Health, Salt Lake City, Utah, USA.,Division of Hematology/Oncology, Department of Pediatrics, University of Utah Health, Salt Lake City, Utah, USA
| | - Archana M Agarwal
- Division of Hematopathology, Department of Pathology, University of Utah Health, Salt Lake City, Utah, USA.,ARUP Laboratories, Salt Lake City, Utah, USA
| | - Tracy I George
- Division of Hematopathology, Department of Pathology, University of Utah Health, Salt Lake City, Utah, USA.,ARUP Laboratories, Salt Lake City, Utah, USA
| | - Vinod K Bhutani
- Division of Neonatal and Developmental Medicine, Department of Pediatrics, Stanford University School of Medicine and the Lucile Salter Packard Children's Hospital, Stanford, California, USA
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Christensen RD, Agarwal AM, George TI, Bhutani VK, Yaish HM. Acute neonatal bilirubin encephalopathy in the State of Utah 2009–2018. Blood Cells Mol Dis 2018; 72:10-13. [DOI: 10.1016/j.bcmd.2018.05.002] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Revised: 05/22/2018] [Accepted: 05/23/2018] [Indexed: 12/01/2022]
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Umbilical cord blood bilirubins, gestational age, and maternal race predict neonatal hyperbilirubinemia. PLoS One 2018; 13:e0197888. [PMID: 29856776 PMCID: PMC5983417 DOI: 10.1371/journal.pone.0197888] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Accepted: 05/10/2018] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE No validated biomarker at birth exists to predict which newborns will develop severe hyperbilirubinemia. This study's primary aim was to build and validate a prediction model for severe hyperbilirubinemia using umbilical cord blood bilirubins (CBB) and risk factors at birth in neonates at risk for maternal-fetal blood group incompatibility. This study's secondary aim was to compare the accuracy of CBB to the direct antigen titer. METHODS Inclusion criteria for this prospective cohort study included: ≥35 weeks gestational age, mother with blood type O and/or Rh negative or positive antibody screen, and <24 hours of age. The primary outcome was severe hyperbilirubinemia, defined as phototherapy during the initial hospital stay. Secondary outcomes were a total serum bilirubin concentration >95th and >75th percentile during the initial hospital stay. The predictive performance and accuracy of the two tests (CBB and direct antigen titer) for each outcome was assessed using area under a receiver-operating characteristic curve (AUC), sensitivity, and specificity. RESULTS When compared to neonates who did not receive phototherapy (n = 463), neonates who received phototherapy (n = 36) had a greater mean CBB ± standard deviation (2.5 ± 0.7 vs. 1.6 ± 0.4 mg/dL, p<0.001). For every 0.3 mg/dL increase in CBB, a neonate was 3.20 (95% confidence interval, 2.31-4.45), 2.10 (1.63-2.70), and 3.12 (2.44-3.99) times more likely to receive phototherapy or have a total serum bilirubin concentration >95th and >75th percentile, respectively. The AUC ± standard error (95% confidence interval) for CBB for phototherapy and a total serum bilirubin concentration >95th and >75th percentile was 0.89 ± 0.03 (0.82-0.95), 0.81 ± 0.04 (0.73-0.90), and 0.84 ± 0.02 (0.80-0.89), respectively. However, the AUC for gestational age and maternal Asian race for these outcomes was only 0.55 ± 0.05 (0.45-0.66), 0.66 ± 0.05 (0.56-0.76), and 0.57 ± 0.04 (0.05-0.64), respectively. When the CBB was combined with gestational age and maternal Asian race, the AUC for a total serum bilirubin concentration >95th percentile improved to 0.87 ± 0.03 (0.81-0.92) (p = 0.034 vs. the model with CBB only and p<0.001 vs. the model with clinical risk factors only). In a sub-group of subjects (n = 189), the AUC for the direct antigen titer for phototherapy was 0.64 ± 0.06 (0.52-0.77) with a 52% sensitivity and 77% specificity. In contrast, a CBB cut-point of 1.85 mg/dL was 92% sensitive and 70% specific for phototherapy with an AUC of 0.87 ± 0.04 (0.80-0.95). CONCLUSION CBB, in combination with gestational age and maternal race, may be a useful, non-invasive test to predict shortly after birth which neonates will develop severe hyperbilirubinemia.
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Farouk ZL, Muhammed A, Gambo S, Mukhtar-Yola M, Umar Abdullahi S, Slusher TM. Follow-up of Children with Kernicterus in Kano, Nigeria. J Trop Pediatr 2018; 64:176-182. [PMID: 28605485 DOI: 10.1093/tropej/fmx041] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
INTRODUCTION Acute bilirubin encephalopathy (ABE) is associated with long-term sequelae (kernicterus). It continues to be a significant issue in our region of Nigeria, accounting for much morbidity and mortality. Herein we report the outcome of neonates with ABE seen at our centre. METHODOLOGY We established a surveillance of children who had ABE and returned to follow-up from prospective cases of ABE (2012-2014). ABE was diagnosed based on a bilirubin-induced neurologic dysfunction score of ≥ 1. Kernicterus was subsequently established based on a history of developmental delays, hearing impairments and abnormal physical and neurologic examinations at follow-up age ≥3 months. RESULT Five hundred fifty-one neonates had hyperbilirubinaemia of whom 104 (18.8%) had ABE. Mean transcutaneous bilirubin using the Ingram icterometer was 18.3 mg/dl ± SD 1.9 [(12.5-19.1), total serum bilirubin of 18.1 ± 10.9] (range: 10.3-64 mg/dl). Sixty-five infants returned for follow-up (41 males and 24 females); mean age 9 months (22 days to 17 months). Most (58 of 65; 89.2%) had abnormal neurological findings and 15 (25.9%) had probable kernicterus. CONCLUSION There is a critical need for a National Kernicterus Registry to document all cases of kernicterus and formulate an effective treatment and prevention policy.
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Affiliation(s)
| | | | - Safiya Gambo
- Department of Paediatrics Murtala Muhamed Specialist Hospital, Kano 7002 31, Nigeria
| | | | | | - Tina M Slusher
- Department of Pediatrics, Division of Global Pediatrics University of Minnesota, Minneapolis, MN 55415, USA
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Extreme hyperbilirubinemia and rescue exchange transfusion in California from 2007 to 2012. J Perinatol 2016; 36:853-7. [PMID: 27442156 DOI: 10.1038/jp.2016.106] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Revised: 03/29/2016] [Accepted: 04/05/2016] [Indexed: 11/08/2022]
Abstract
OBJECTIVE To evaluate the impact of statewide learning collaboratives that used national guidelines to manage jaundice on the serial prevalence of extreme hyperbilirubinemia (EHB, total bilirubin ⩾25 mg dl(-1)) and exchange transfusions introduced in California Perinatal Quality Care Collaborative (CPQCC) hospitals in 2007. STUDY DESIGN Adverse outcomes were retrieved from statewide databases on re-admissions for live births ⩾35 weeks' gestation (2007 to 2012) in diverse CPQCC hospitals. Individual and cumulative select perinatal risk factors and frequencies were the outcomes measures. RESULTS For 3 172 762 babies (2007 to 2012), 92.5% were ⩾35 weeks' gestation. Statewide EHB and exchange rates decreased from 28.2 to 15.3 and 3.6 to 1.9 per 100 000 live births, respectively. From 2007 to 2012, the trends for TB>25 mg dl(-1) rates were -0.92 per 100 000 live births per year (95% CI: -3.71 to 1.87, P=0.41 and R(2)=0.17). CONCLUSION National guidelines complemented by statewide learning collaboratives can decrease or modify outcomes among all birth facilities and impact clinical practice behavior.
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Évaluation de la qualité d’élaboration d’une recommandation pour la pratique clinique avec la grille AGREE II : exemple de l’ictère néonatal. Arch Pediatr 2016; 23:241-8. [DOI: 10.1016/j.arcped.2015.11.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2014] [Revised: 07/03/2015] [Accepted: 11/21/2015] [Indexed: 11/18/2022]
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Exchange Transfusion for Neonatal Hyperbilirubinemia in Johannesburg, South Africa, from 2006 to 2011. INTERNATIONAL SCHOLARLY RESEARCH NOTICES 2016; 2016:1268149. [PMID: 27382636 PMCID: PMC4897111 DOI: 10.1155/2016/1268149] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Accepted: 02/02/2016] [Indexed: 11/18/2022]
Abstract
Background. Severe hyperbilirubinaemia requiring exchange transfusion has become less common in recent years; however, kernicterus still occurs. The aim of this study was to review babies undergoing exchange transfusion for severe hyperbilirubinaemia in a Johannesburg hospital. Methodology. This was a retrospective review of babies who required exchange transfusion in both the neonatal and the paediatric wards from June 1, 2006, to December 31, 2011. Results. There were 64 patients who underwent 67 exchange transfusions. Isoimmune haemolysis (both Rh and ABO incompatibility) was the cause of jaundice in 9/64 (14%). Most babies who underwent exchange transfusion were sick or preterm and were admitted in hospital after birth (38/64; 59.5%); three of these babies died, but not during the exchange transfusion (3/38; 7.9%); all three had signs suggestive of neonatal sepsis. The remaining 26 babies (40.6%) were readmitted to the paediatric wards for exchange transfusion. Six of these babies (6/26; 23.0%) had signs of kernicterus. The most significant complication of exchange transfusion was apnoea requiring mechanical ventilation in three patients (3/64; 4.6%). Conclusion. Despite a relatively low number of babies undergoing exchange transfusion, kernicterus still occurs and must be prevented. Proper protocols for screening and management of severe hyperbilirubinaemia need to be enforced.
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Vandborg PK, Hansen BM, Greisen G, Mathiasen R, Kasper F, Ebbesen F. Follow-up of extreme neonatal hyperbilirubinaemia in 5- to 10-year-old children: a Danish population-based study. Dev Med Child Neurol 2015; 57:378-84. [PMID: 25353277 DOI: 10.1111/dmcn.12603] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/20/2014] [Indexed: 11/30/2022]
Abstract
AIM To investigate whether infants with neonatal hyperbilirubinaemia but without intermediate or advanced bilirubin encephalopathy develop long-term sequelae, with impairment of motor development, executive function, or hearing. METHOD This nested double-cohort study included 167 exposed children (107 males, 60 females) born in Denmark 2000 to 2005 at gestational age ≥35 weeks with a total serum bilirubin ≥450 μmol/L (26.3mg/dL) and 163 age-, sex-, and gestational age-matched unexposed children (103 males, 60 females). The children were examined at a mean age of 7.7 years (SD 1.7y) using the Movement Assessment Battery for Children-Second Edition (MABC-2), pure tone audiometry, and the Behavioural Regulation Inventory of Executive Function (BRIEF) questionnaire. RESULTS The follow-up rate was 70% of the eligible infants in the exposed group and 45% in the unexposed group. Mean difference was -0.2 (95% confidence interval [CI] -1.1 to 0.8) in adjusted standard score for MABC-2 and 0.3 (95% CI -2.9 to 3.5) in adjusted BRIEF executive composite standard score. No children had significant hearing impairment or a diagnosis of cerebral palsy, attention-deficit-hyperactive disorder, or autism spectrum disorder recorded in national registries. INTERPRETATION No evidence was found of an increased risk of deficits in motor development, executive function, or hearing in children with extreme hyperbilirubinaemia who did not have intermediate or advanced bilirubin encephalopathy.
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Wong RJ, Stevenson DK. Neonatal hemolysis and risk of bilirubin-induced neurologic dysfunction. Semin Fetal Neonatal Med 2015; 20:26-30. [PMID: 25560401 DOI: 10.1016/j.siny.2014.12.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
The pathologic phenotype of severe hyperbilirubinemia in the newborn infant is primarily due to excessive bilirubin production and/or impaired conjugation, resulting in an increased bilirubin load. This may, in turn, increase an infant's risk for the development of bilirubin-induced neurologic dysfunction (BIND). The highest-risk infants are those with increased bilirubin production rates due to hemolysis. Several immune and non-immune conditions have been found to cause severe hemolysis, and these are often exacerbated in those infants with perinatal sepsis and genetic predispositions. Therefore, identification of these infants, with novel technologies, is paramount in reducing the incidence of BIND and the long-term neurologic sequelae for these at-risk infants.
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Affiliation(s)
- Ronald J Wong
- Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, USA.
| | - David K Stevenson
- Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, USA
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Kuzniewicz MW, Wickremasinghe AC, Wu YW, McCulloch CE, Walsh EM, Wi S, Newman TB. Incidence, etiology, and outcomes of hazardous hyperbilirubinemia in newborns. Pediatrics 2014; 134:504-9. [PMID: 25092943 DOI: 10.1542/peds.2014-0987] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND AND OBJECTIVES Total serum bilirubin (TSB) levels ≥ 30 mg/dL are rare but potentially hazardous. A better understanding of their incidence, causes, and outcomes could help inform preventive efforts. METHODS We identified infants born ≥ 35 weeks' gestational age from 1995-2011 in Kaiser Permanente Northern California (n = 525409) and examined the medical records of infants with a TSB ≥ 30 mg/dL to determine etiology and the occurrence of acute bilirubin encephalopathy. We reviewed inpatient and outpatient encounters through 2013 for evidence of sensorineural hearing loss (SNHL) or cerebral palsy (CP). RESULTS We identified 47 infants with TSB ≥ 30 mg/dL (8.6 per 100000 births). In 44 infants (94%), the hyperbilirubinemia occurred after the initial birth hospitalization. The etiology was not identified in 33 (70%). Glucose-6-phosphate dehydrogenase (G6PD) activity was measured in only 25 (53%) of whom 10 (40%) were deficient. Four children had acute bilirubin encephalopathy of whom 2 developed both CP and SNHL, and 1 developed isolated SNHL. These 3 infants all had G6PD deficiency and TSB >40 mg/dL. One additional 35-week infant with TSB 38.2 mg/dL had SNHL. CONCLUSIONS Hazardous (≥ 30 mg/dL) hyperbilirubinemia is a rare event. No etiology could be identified from the clinical record in most cases. G6PD deficiency was the leading cause of hazardous hyperbilirubinemia when an etiology was identified, but many were not tested. Chronic, bilirubin-induced neurotoxicity was uncommon and occurred only in the setting of additional risk factors and TSB values well over (>15 mg/dL) the American Academy of Pediatrics exchange transfusion thresholds.
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Affiliation(s)
- Michael W Kuzniewicz
- Division of Research, Kaiser Permanente Northern California, Oakland, California; Departments of Pediatrics,
| | - Andrea C Wickremasinghe
- Department of Pediatrics, Kaiser Permanente Santa Clara, Santa Clara, California Epidemiology and Biostatistics, and
| | - Yvonne W Wu
- Departments of Pediatrics, Neurology, University of California, San Francisco, San Francisco, California; and
| | | | - Eileen M Walsh
- Division of Research, Kaiser Permanente Northern California, Oakland, California
| | - Soora Wi
- Division of Research, Kaiser Permanente Northern California, Oakland, California
| | - Thomas B Newman
- Division of Research, Kaiser Permanente Northern California, Oakland, California; Departments of Pediatrics, Epidemiology and Biostatistics, and
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Christensen RD, Yaish HM, Wiedmeier SE, Reading NS, Pysher TJ, Palmer CA, Prchal JT. Neonatal death suspected to be from sepsis was found to be kernicterus with G6PD deficiency. Pediatrics 2013; 132:e1694-8. [PMID: 24218468 DOI: 10.1542/peds.2013-1030] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
We cared for a term male infant born to Burmese immigrants. At about 24 hours a total serum bilirubin (TSB) was 9.3 mg/dL, and phototherapy was begun. It was stopped 48 hours later, with a TSB of 10.9 mg/dL, and he was discharged from the hospital with an appointment for a repeat TSB check 48 hours later. A few hours before the appointment he became listless and apneic, and his parents took him to the emergency department of the regional children's hospital, where sepsis was suspected. The TSB was 41 mg/dL. He died 4 hours later, despite intensive care efforts, with opisthotonus and refractory hypotension. Blood drawn before the exchange transfusion had low glucose-6-phosphate dehydrogenase (G6PD) enzymatic activity, and sequencing of the G6PD gene revealed the G6PD Mahidol mutation (c.487G>A). Cultures and postmortem examination did not demonstrate an infectious process, but kernicterus was present. Acute kernicterus can mimic septic shock.
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Christensen RD, Yaish HM, Nussenzveig RH, Reading NS, Agarwal AM, Eggert LD, Prchal JT. Acute kernicterus in a neonate with O/B blood group incompatibility and a mutation in SLC4A1. Pediatrics 2013; 132:e531-4. [PMID: 23878048 DOI: 10.1542/peds.2012-3799] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
We cared for a term female newborn, who at 108 hours of age, with a total serum bilirubin of 15.4 mg/dL, was discharged from the hospital on home phototherapy. At a return appointment 44 hours later, her total serum bilirubin was 41.7 mg/dL and signs of acute kernicterus were present. Maternal/fetal blood group O/B incompatibility was identified, with a negative direct antiglobulin test, which was positive on retesting. She had abundant spherocytes on blood smear, and these persisted at follow-up, but neither parent had spherocytes identified. A heterozygous SLC4A1(E508K) mutation (gene encoding erythrocyte membrane protein band 3) was found, and in silico predicted to result in damaged erythrocyte cytoskeletal protein function. No mutations were identified in other red cell cytoskeleton genes (ANK1, SPTA1, SPTB, EPB41, EPB42) and the UGT1A1 promoter region was normal. Neurologic follow-up at 2 and 4 months showed developmental delays consistent with mild kernicterus.
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Affiliation(s)
- Robert D Christensen
- Women and Newborns Program, Intermountain Healthcare, Salt Lake City, Utah 84403, USA.
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Use of the extended parallel processing model to evaluate culturally relevant kernicterus messages. J Pediatr Health Care 2013; 27:33-40. [PMID: 23237614 DOI: 10.1016/j.pedhc.2011.06.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2011] [Revised: 06/07/2011] [Accepted: 06/16/2011] [Indexed: 11/21/2022]
Abstract
INTRODUCTION Kernicterus is a serious but easily preventable disease in newborns that is not well-known even by some health care professionals. This study evaluated a parent guide and poster on kernicterus awareness and prevention generated by the Centers for Disease Control and Prevention. The extended parallel processing model was used as a framework for creating the interview protocol and analyzing the results. METHOD In-depth interviews were conducted with four parents and six health care personnel of different ethnicities to evaluate the materials. Content for the parent guide and poster was held constant, but photos were varied according to the ethnicity of the baby (white, African American, or Hispanic) and the language in which the interviews were conducted (English and Spanish). RESULTS The parent guide was evaluated positively, but reactions to the poster were varied. The consensus was that the poster drew more attention than the pocket guide but lacked sufficient information about what jaundice is or how to treat it, while the pocket guide provided information, especially with regard to efficacy. The extended parallel processing model claims that when efficacy is equal to or higher than perceived threat, respondents should engage in recommended responses, which was the general finding from these interviews. DISCUSSION Recommendations for improvements of the materials are presented. The focus on different ethnicities in the materials was perceived as unnecessary and potentially counter-productive. Both parents and health care professionals mentioned the lack of information regarding treatment. Providing information on the length and effectiveness of treatment for jaundice and kernicterus might increase efficacy in averting the threat in both conditions.
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Wolff M, Schinasi DA, Lavelle J, Boorstein N, Zorc JJ. Management of neonates with hyperbilirubinemia: improving timeliness of care using a clinical pathway. Pediatrics 2012; 130:e1688-94. [PMID: 23147974 DOI: 10.1542/peds.2012-1156] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Neonatal hyperbilirubinemia is a common reason for neonates to present to the emergency department (ED). Although clinical practice guidelines provide recommendations for evaluation and therapy, few studies have evaluated ways to apply them effectively in the ED setting. The primary objective of this study was to compare time to phototherapy in neonates presenting to the ED with jaundice before and after implementation of a nursing-initiated clinical pathway. Secondary outcomes included time to bilirubin result and ED length of stay in neonates. METHODS We performed a retrospective historical control study comparing neonates presenting to the ED with jaundice during 9-month periods before and after initiation of the pathway. Charts were abstracted for times of assessment and treatment and final disposition. RESULTS Three hundred neonates were included in this study: 149 before and 151 after pathway implementation. Median time to phototherapy (historical control: 128 minutes vs postintervention group: 52 minutes; P < .001), median time to bilirubin result (157 vs 99; P < .001), and median ED length of stay (268 minutes vs 195 minutes; P < .001) were shorter for neonates treated after the implementation of the clinical pathway. No complications were reported during the study period. CONCLUSIONS After implementation of a clinical pathway for the management of neonates with jaundice in the ED, we observed a reduction in time to phototherapy, time to bilirubin measurement, and overall length of stay.
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Affiliation(s)
- Margaret Wolff
- Department of Emergency Medicine, University of Michigan, Ann Arbor, MI 48109, USA.
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Christensen RD, Lambert DK, Henry E, Eggert LD, Yaish HM, Reading NS, Prchal JT. Unexplained extreme hyperbilirubinemia among neonates in a multihospital healthcare system. Blood Cells Mol Dis 2012; 50:105-9. [PMID: 23123126 DOI: 10.1016/j.bcmd.2012.10.004] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2012] [Accepted: 10/17/2012] [Indexed: 10/27/2022]
Abstract
We report a series of neonates who developed a total serum bilirubin (TSB) >20mg/dL during a recent ten-year period in a multihospital healthcare system. The incidence of a TSB >20mg/dL fell after instituting a pre-hospital discharge bilirubin screening program in 2003/2004 (91.3 cases/10,000 births before vs. 72.4/10,000 after), but the incidence has subsequently remained unchanged. No specific cause for the hyperbilirubinemia was identified in 66% of (n=32) cases with a TSB >30 mg/dL or in 76% of (n=112) cases with a TSB 25.0-29.9 mg/dL. We hypothesized that hemolysis was a common contributing mechanism, but our review of hospital records indicated that in most instances these infants were not evaluated sufficiently to test this hypothesis. Records review showed maternal and neonatal blood types and direct antiglobulin testing were performed in >95% cases, but rarely were other tests for hemolysis obtained. In the ten-year period reviewed there were zero instances where erythrocyte morphology from a blood film examination or Heinz body evaluation by a pediatric hematologist or pathologist were performed. In 3% of cases pyruvate kinase was tested, 3% were evaluated by hemoglobin electrophoresis, 3% had a haptoglobin measurement, and 16% were tested for G6PD deficiency. Thus, determining the cause for hyperbilirubinemia in neonates remains a problem at Intermountain Healthcare and, we submit, elsewhere. As a result, the majority of infants with a TSB >25mg/dL have no specific causation identified. We speculate that most of these cases involve hemolysis and that the etiology could be identified if searched for more systematically. With this in mind, we propose a "consistent approach" to evaluating the cause(s) of hyperbilirubinemia among neonates with a TSB >25mg/dL.
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Affiliation(s)
- Robert D Christensen
- Women and Newborn's Clinical Program, Intermountain Healthcare, Salt Lake City, UT, USA.
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Vandborg PK, Hansen BM, Greisen G, Jepsen M, Ebbesen F. Follow-up of neonates with total serum bilirubin levels ≥ 25 mg/dL: a Danish population-based study. Pediatrics 2012; 130:61-6. [PMID: 22732176 DOI: 10.1542/peds.2011-2760] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVE To study if severe hyperbilirubinemia in infants with no or minor neurologic symptoms in the neonatal period affects children's development at the age of 1 to 5 years. METHODS Controlled descriptive follow-up study of a national cohort of Danish children. The exposed group consisted of all live-born infants in Denmark from 2004 to 2007 with a gestational age ≥ 35 weeks and severe hyperbilirubinemia in the neonatal period, defined as at least 1 measure of total serum bilirubin level ≥ 25 mg/dL during the first 3 weeks of life. The exposed group of 206 children was matched with a control group of 208 children. The Ages and Stages Questionnaire (ASQ), a method of evaluating the child's development, was filled in by parents. Main outcome measure was effect size of ASQ total score. Statistical analyses comprised a matched analysis of 102 pairs and a nonmatched regression analysis of all participants. RESULTS The response rate was 79% (n = 162 of 206) in the study group and 70% (n = 146 of 208) in the control group. Neither the matched nor the nonmatched analysis showed any statistically significant differences between the groups; the effect size of the total score was 0.04 (-0.24 to 0.32) and -0.04 (-0.26 to 0.19), respectively. CONCLUSIONS Using the parent-completed ASQ, we found no evidence of developmental delay in children aged between 1 and 5 years with severe neonatal hyperbilirubinemia compared with a matched control group.
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Affiliation(s)
- Pernille Kure Vandborg
- Department of Paediatrics, Aalborg Hospital, Aarhus University Hospital, 9000 Aalborg, Denmark.
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Burgos AE, Flaherman VJ, Newman TB. Screening and follow-up for neonatal hyperbilirubinemia: a review. Clin Pediatr (Phila) 2012; 51:7-16. [PMID: 21357204 DOI: 10.1177/0009922811398964] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Abstract
Neonatal jaundice usually occurs in the transitional period after birth, presenting as an elevation of circulating bilirubin. Bilirubin neurotoxicity can occur if the levels of bilirubin become excessive (hyperbilirubinemia). This pathologic phenotype of newborn jaundice can develop because of excessive bilirubin production or impaired conjugation, with the risk for developing bilirubin-induced neurologic dysfunction, depending on the degree of the resultant bilirubin load. The plasma bilirubin level thus can be used to assess an infant's risk for developing bilirubin neurotoxicity relative to an infant's age in hours. Because all infants have an impaired conjugation ability, infants at greatest risk are those who have increased bilirubin production rates, because of hemolysis, for example. Therefore, developing potential preventive strategies as well as noninvasive technologies to treat and to identify infants with increased bilirubin production rates, respectively, are tantamount to reducing the incidence of bilirubin-induced neurologic dysfunction.
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Affiliation(s)
- David K Stevenson
- Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine, Stanford, CA 94305-5208, USA.
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Mah MP, Clark SL, Akhigbe E, Englebright J, Frye DK, Meyers JA, Perlin JB, Rodriguez M, Shepard A. Reduction of severe hyperbilirubinemia after institution of predischarge bilirubin screening. Pediatrics 2010; 125:e1143-8. [PMID: 20368324 DOI: 10.1542/peds.2009-1412] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVE The objective of this study was to demonstrate efficacy of universal predischarge neonatal bilirubin screening in reducing potentially dangerous hyperbilirubinemia in a large, diverse national population. METHODS This was a 5-year prospective study directed at neonates who were aged < or =28 days and evaluated at facilities of the Hospital Corporation of America with a serum bilirubin level of > or =20.0 mg/dL. This time frame includes periods before, during, and after the initiation of systemwide institution of a program of universal predischarge neonatal bilirubin screening. The primary outcome measures were serum bilirubin 25.0 to 29.9 and > or =30.0 mg/dL. Neonatal phototherapy use during these years was also analyzed. RESULTS Of the 1,028,817 infants who were born in 116 hospitals between May 1, 2004, and December 31, 2008, 129,345 were delivered before implementation and 899,472 infants were delivered after implementation of this screening program in their individual hospitals. With a program of universal screening, the incidence of infants with total bilirubin 25.0 to 29.9 mg/dL declined from 43 per 100,000 to 27 per 100,000, and the incidence of infants with total bilirubin of > or =30.0 mg/dL dropped from 9 per 100,000 to 3 per 100,000 (P = .0019 and P = .0051, respectively). This change was associated with a small but statistically significant increase in phototherapy use. CONCLUSIONS A comprehensive program of prevention, including universal predischarge neonatal bilirubin screening, significantly reduces the subsequent development of bilirubin levels that are known to place newborns at risk for bilirubin encephalopathy.
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Affiliation(s)
- Michael P Mah
- Hospital Corporation of America, Nashville, Tennessee, USA
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Abstract
OBJECTIVES Hereditary spherocytosis (HS) is the most common inherited hemolytic disease among people of Northern European decent. Neonates with HS can develop significant hyperbilirubinemia, but we suspect that HS is underrecognized as a cause of neonatal jaundice. METHODS We used electronic record repositories of Intermountain Healthcare to identify all neonates with a diagnosis of HS in a recent 5-year period. We compared these with the number of new HS cases anticipated on the basis of national prevalence and also with the number who had elevations in mean corpuscular hemoglobin concentration (MCHC), red cell distribution width (RDW), and bilirubin. We compared MCHC and RDW values of neonates who had direct antiglobulin test-positive (DAT[+]) and DAT(-) results and jaundice with values of neonates who had HS. RESULTS Eight neonates received a diagnosis of HS; however, we may have failed to diagnose 90% of cases. To assess whether some with a missed diagnosis of HS developed significant hyperbilirubinemia, we examined records of all 670 with a bilirubin level of >or=20 mg/dL. Records of the 20 with the highest MCHC and RDW values suggested that HS was present but unrecognized in at least 7. Follow-up revealed a subsequent diagnosis of HS in 5; the other 2 are no longer in our health system. MCHC and RDW values were highest in those with HS, intermediate in the DAT(+) group, and lowest in the DAT(-) group. An MCHC of >or=36.0 g/dL had 82% sensitivity and 98% specificity for identifying HS. CONCLUSION We speculate that HS is underrecognized as a cause of neonatal hyperbilirubinemia. We speculate further that an MCHC of >or=36.0 g/dL can alert caregivers to the possibility of HS.
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Affiliation(s)
- Robert D Christensen
- Department of Women and Newborns, Intermountain Healthcare, Salt Lake City, Utah 84403, USA.
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