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Bhutani VK, Wong RJ, Turkewitz D, Rauch DA, Mowitz ME, Barfield WD. Phototherapy to Prevent Severe Neonatal Hyperbilirubinemia in the Newborn Infant 35 or More Weeks of Gestation: Technical Report. Pediatrics 2024; 154:e2024068026. [PMID: 39183672 DOI: 10.1542/peds.2024-068026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2024] [Revised: 06/21/2024] [Accepted: 06/24/2024] [Indexed: 08/27/2024] Open
Abstract
OBJECTIVE To summarize the principles and application of phototherapy consistent with the current 2022 American Academy of Pediatrics "Clinical Practice Guideline Revision for the Management of Hyperbilirubinemia in the Newborn Infant 35 or More Weeks of Gestation." METHODS Relevant literature was reviewed regarding phototherapy devices in the United States, specifically those that incorporate blue to blue-green light-emitting diode, fluorescent, halogen, or fiberoptic light sources, and their currently marketed indications. RESULTS The efficacy of phototherapy devices varies widely because of nonstandardized use of light sources and configurations and irradiance meters. In summary, the most effective and safest devices have the following characteristics: (1) incorporation of narrow band blue-to-green light-emitting diode lamps (∼460-490 nm wavelength range; 478 nm optimal) that would best overlap the bilirubin absorption spectrum; (2) emission of irradiance of at least 30 µW/cm2/nm (in term infants); and (3) illumination of the exposed maximal body surface area of an infant (35% to 80%). Furthermore, accurate irradiance measurements should be performed using the appropriate irradiance meter calibrated for the wavelength range delivered by the phototherapy device. CONCLUSIONS With proper administration of effective phototherapy to an infant without concurrent hemolysis, total serum or plasma bilirubin concentrations will decrease within the first 4 to 6 hours of initiation safely and effectively.
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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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Vidavalur R, Bhutani VK. Trends in infant mortality due to haemolytic disease and other perinatal jaundice in the USA, 1999-2020. Arch Dis Child Fetal Neonatal Ed 2024; 109:569-570. [PMID: 37734928 DOI: 10.1136/archdischild-2023-326006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/05/2023] [Indexed: 09/23/2023]
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De Luca D, Bhutani VK. Advancing neonatal phototherapy after 70 years of global impact. THE LANCET. CHILD & ADOLESCENT HEALTH 2024:S2352-4642(24)00195-0. [PMID: 39128475 DOI: 10.1016/s2352-4642(24)00195-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2024] [Revised: 07/18/2024] [Accepted: 07/18/2024] [Indexed: 08/13/2024]
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Milburn S, Bhutani VK, Weintraub A, Guttmann K. Implementation of Universal Screening for G6PD Deficiency in Newborns. Pediatrics 2024; 154:e2024065900. [PMID: 38988309 DOI: 10.1542/peds.2024-065900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 05/23/2024] [Accepted: 05/24/2024] [Indexed: 07/12/2024] Open
Abstract
We describe the implementation of universal glucose-6-phosphate dehydrogenase (G6PD) screening during the first year of New York State mandated testing, as well as operational challenges and clinical knowledge gained. All infants born at or transferred to our center between June 21, 2022 and June 30, 2023, underwent testing for G6PD enzyme deficiency and were included in the study cohort. Infant blood samples were collected and sent to a reference laboratory for quantitative assay. After initiation of universal screening, a quality improvement initiative was launched to: monitor and improve the suitability of blood sample collection to ensure timely return of results;improve the reliability and validity of the reference laboratory enzyme assay; andestablish accurate reference ranges for G6PD deficiency in newborns.A total of 5601 newborns were included. Within the first year of implementation, the percentage of samples yielding any test result increased from 76% to 85%, and most patients had a G6PD result available within 1 day of discharge. We established a more accurate threshold for G6PD deficiency in newborns of <4.9 U/g Hb and G6PD intermediate of <10.0 U/g Hb. Using the updated reference ranges, 224 patients in our cohort were identified as G6PD deficient or intermediate (4.0%). Through a quality-sensitive process, we identified the importance of a standardized approach, improved sample collection processes, decreased sample turnaround time, and established more accurate reference ranges. We hope our experiences will help others seeking to improve processes and implement similar programs at other institutions.
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Okwundu CI, Bhutani VK, Uthman OA, Smith J, Olowoyeye A, Fiander M, Wiysonge CS. Transcutaneous bilirubinometry for detecting jaundice in term or late preterm neonates. Cochrane Database Syst Rev 2024; 5:CD011060. [PMID: 38804265 PMCID: PMC11131145 DOI: 10.1002/14651858.cd011060.pub2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
BACKGROUND The American Academy of Pediatrics and the Canadian Paediatric Society both advise that all newborns should undergo bilirubin screening before leaving the hospital, and this has become the standard practice in both countries. However, the US Preventive Task Force has found no strong evidence to suggest that this practice of universal screening for bilirubin reduces the occurrence of significant outcomes such as bilirubin-induced neurologic dysfunction or kernicterus. OBJECTIVES To evaluate the effectiveness of transcutaneous screening compared to visual inspection for hyperbilirubinemia to prevent the readmission of newborns (infants greater than 35 weeks' gestation) for phototherapy. SEARCH METHODS We searched CENTRAL, MEDLINE, Embase, CINAHL, ClinicalTrials.gov, ICTRP, and ISRCTN in June 2023. We also searched conference proceedings, and the reference lists of included studies. SELECTION CRITERIA We included randomized controlled trials (RCTs), quasi-randomized, cluster-randomized, or prospective cohort studies with control arm that evaluated the use of transcutaneous bilirubin (TcB) screening for hyperbilirubinemia in newborns before hospital discharge. DATA COLLECTION AND ANALYSIS We used standard methodologic procedures expected by Cochrane. We evaluated treatment effects using a fixed-effect model with risk ratio (RR) and 95% confidence intervals (CI) for categorical data and mean, standard deviation (SD), and mean difference (MD) for continuous data. We used the GRADE approach to evaluate the certainty of evidence. MAIN RESULTS We identified one RCT that met our inclusion criteria. The study included 1858 African newborns at 35 weeks' gestation or greater who were receiving routine care at a well-baby nursery, and were randomly recruited prior to discharge to undergo TcB screening. The study had good methodologic quality. TcB screening versus visual assessment of hyperbilirubinemia in newborns: - probably reduces readmission to the hospital for hyperbilirubinemia (RR 0.25, 95% CI 0.14 to 0.46; P < 0.0001; moderate-certainty evidence); - may have little or no effect on the rate of exchange transfusion (RR 0.20, 95% CI 0.01 to 14.16; low-certainty evidence); - probably increases the number of newborns who require phototherapy prior to discharge (RR 2.67, 95% CI 1.56 to 4.55; moderate-certainty evidence). - may have little or no effect on the rate of acute bilirubin encephalopathy (RR 0.33, 95% CI 0.01 to 8.18; low-certainty evidence). The study did not evaluate or report cost of care. AUTHORS' CONCLUSIONS Moderate-certainty evidence suggests that TcB screening probably reduces hospital readmission for hyperbilirubinemia compared to visual inspection. Low-certainty evidence also suggests that TcB screening may have little or no effect on the rate of exchange transfusion compared to visual inspection. However, moderate-certainty evidence suggests that TcB screening probably increases the number of newborns that require phototherapy before discharge compared to visual inspection. Low-certainty evidence suggests that TcB screening may have little or no effect on the rate of acute bilirubin encephalopathy compared to visual inspection. Given that we have only identified one RCT, further studies are necessary to determine whether TcB screening can help to reduce readmission and complications related to neonatal hyperbilirubinemia. In settings with limited newborn follow-up after hospital discharge, identifying newborns at risk of severe hyperbilirubinemia before hospital discharge will be important to plan targeted follow-up of these infants.
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Vidavalur R, Bhutani VK. Georacial Epidemiological Estimates of Glucose-6-Phosphate Dehydrogenase Deficiency among Newborns in the United States. Am J Perinatol 2024; 41:e1841-e1849. [PMID: 37105226 DOI: 10.1055/a-2082-4859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
OBJECTIVE Glucose-6-phosphate dehydrogenase deficiency (G6PDd) is the most common inherited enzyme deficiency disorder worldwide and a major risk factor for the development of severe hyperbilirubinemia. Racial diversity of phenotypes and genotypes in affected individuals is likely to exist in the United States because of changing population demographics. The aim of the present study was to predict an empirical estimate of annual prevalence of G6PDd in newborns adjusted for geography (state of birth), maternal racial identity, and sex of the infant. STUDY DESIGN Birth statistics (2019) from National Center for Vital Statistics and CDC-WONDER data and race-specific prevalence of G6PDd in the United States were evaluated from published sources. We developed Simpson's diversity index (DI) for each State and correlated these to rates of G6PDd in neonates. Descriptive statistics including modeled prevalence and its association with DI were assessed using the Spearman's rho correlation test. We modeled state-specific prevalence for six states (California, Washington DC, Illinois, Massachusetts, New York, and Pennsylvania) using population-level allele frequencies and race, based on Hardy-Weinberg equilibrium. RESULTS We estimated 78,010 (95% confidence interval: 76,768-79,252) newborns had G6PDd at birth in 2019 with cumulative median prevalence of 17.3 (interquartile range: 12.4-23.2) per 1,000 live births for United States. A strong association was noted for DI and prevalence of G6PDd (p < 0.0005). Five states (Washington DC, Mississippi, Louisiana, Georgia, and Maryland) have the highest projected G6PDd prevalence, with a range of 35 to 48 per 1,000 live births. The probability of G6PDd for female heterozygotes, based on male prevalence, ranged from 1.1 to 7.5% for each cohort in the select six states. CONCLUSION States with diverse populations are likely to have higher rates of G6PDd. These prevalence estimates exceeded by several-fold when compared with disorders screened by existing state mandated newborn screening panels. These discrepancies are further confounded by known risk of severe neonatal hyperbilirubinemia that results with G6PDd and the life-long risk of hemolysis. Combined universal newborn predischarge screening for G6PDd and bilirubin could alert and guide a clinician's practices for parental education and closer medical surveillance during the vulnerable neonatal time period. KEY POINTS · G6PDd is a common X-linked disorder that can present with varied phenotypes among newborns.. · Prevalence of G6PDd and genotype distribution varies with sex, race, and ethnicity.. · We present regional race- and sex-based estimates of G6PDd in the United States..
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Bhutani VK, Vidavalur R, Wong RJ. Advances to diminish global newborn kernicterus mortality. J Perinatol 2024; 44:493-500. [PMID: 38151598 DOI: 10.1038/s41372-023-01862-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 12/05/2023] [Accepted: 12/14/2023] [Indexed: 12/29/2023]
Abstract
OBJECTIVE Initiatives, "Every Newborn Action Plans" and "Sustainable Developmental Goals," are profoundly shaping global infant mortality trends. Concurrently, professional organizations recommended curricula to prevent extreme hyperbilirubinemia (EHB) sequelae. Therefore we assessed if these efforts have successfully decreased EHB-related mortality over time. STUDY DESIGN We used the Global Burden of Diseases 2019 database to determine neonatal and infant mortality and the burden of kernicterus from 1990-2019. RESULTS Globally, kernicterus accounted for 2.8 million infant deaths and trended downwards significantly from 1990 to 2019. By 2019, kernicterus-related mortality was 4 and 293 per million livebirths in high (HICs) and low income countries (LICs), respectively. 82% of deaths occurred in LICs and lower-middle income-countries. Average declines of mortality rates were 6.2% and 3.0% for HICs and LICs, respectively. CONCLUSIONS Kernicterus-related mortality has been effectively reduced to <5 per million in HICs. Skills and knowledge transfer can potentially transform frontline services to bridge discordant kernicteric outcomes worldwide.
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Bhutani VK, Vidavalur R, Wong RJ. Correction: Advances to diminish global newborn kernicterus mortality. J Perinatol 2024; 44:600-601. [PMID: 38383576 DOI: 10.1038/s41372-024-01903-9] [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: 02/23/2024]
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Foote EM, Jahan F, Rahman M, Parvez SM, Ahmed T, Hasan R, Yeasmin F, Arifeen SE, Billah SM, Hoque MM, Shahidullah M, Shariful Islam M, Bhutani VK, Darmstadt GL. Community health worker-led household screening and management of neonatal hyperbilirubinemia in rural Bangladesh: a cluster randomized control trial protocol. Gates Open Res 2024; 7:58. [PMID: 39015822 PMCID: PMC11249711 DOI: 10.12688/gatesopenres.14033.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/16/2024] [Indexed: 07/27/2024] Open
Abstract
BACKGROUND Extreme hyperbilirubinemia leading to neurologic disability and death is disproportionately higher in low- and middle-income countries (LMIC) such as Bangladesh, and is largely preventable through timely treatment. In LMICs, an estimated half of all newborns are born at home and few receive screening or treatment for hyperbilirubinemia, leading to 6 million newborns per year who need phototherapy treatment for hyperbilirubinemia but are untreated. Household screening and treatment for neonatal hyperbilirubinemia with phototherapy administered by a trained community health worker (CHW) may increase indicated treatment for neonatal hyperbilirubinemia in comparison to the existing care system in Bangladesh. METHODS 530 Bangladeshi women in their second or third trimester of pregnancy from the rural community of Sakhipur, Bangladesh will be recruited for a cluster randomized trial and randomized to the intervention arm - home screening and treatment for neonatal hyperbilirubinemia - or the comparison arm to receive usual care. In the intervention arm, CHWs will provide mothers with two prenatal visits, visit newborns by 2 days of age and then daily for 3 days to measure transcutaneous bilirubin (TcB) and monitor for clinical danger signs. Newborns without danger signs but with a TcB above the treatment threshold, but >15 mg/dL will be treated with light-emitting diode (LED) phototherapy at home. Newborns with danger signs or TcB ≥15 mg/dL will be referred to a hospital for treatment. Treatment rates for neonatal hyperbilirubinemia in each arm will be compared. CONCLUSION This study will evaluate the effectiveness of CHW-led home phototherapy to increase neonatal hyperbilirubinemia treatment rates in rural Bangladesh. LMICs are expanding access to postnatal care by using CHWs, and our work will give CHWs a curative treatment option for neonatal hyperbilirubinemia. Similar projects in other LMICs can be pursued to dramatically extend healthcare access to vulnerable newborns with hyperbilirubinemia.
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Foote EM, Jahan F, Rahman M, Parvez SM, Ahmed T, Hasan R, Yeasmin F, Arifeen SE, Billah SM, Hoque MM, Shahidullah M, Shariful Islam M, Bhutani VK, Darmstadt GL. Community health worker-led household screening and management of neonatal hyperbilirubinemia in rural Bangladesh: a cluster randomized control trial protocol. Gates Open Res 2024; 7:58. [PMID: 39015822 PMCID: PMC11249711 DOI: 10.12688/gatesopenres.14033.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/16/2024] [Indexed: 07/18/2024] Open
Abstract
Background Extreme hyperbilirubinemia leading to neurologic disability and death is disproportionately higher in low- and middle-income countries (LMIC) such as Bangladesh, and is largely preventable through timely treatment. In LMICs, an estimated half of all newborns are born at home and few receive screening or treatment for hyperbilirubinemia, leading to 6 million newborns per year who need phototherapy treatment for hyperbilirubinemia but are untreated. Household screening and treatment for neonatal hyperbilirubinemia with phototherapy administered by a trained community health worker (CHW) may increase indicated treatment for neonatal hyperbilirubinemia in comparison to the existing care system in Bangladesh. Methods 530 Bangladeshi women in their second or third trimester of pregnancy from the rural community of Sakhipur, Bangladesh will be recruited for a cluster randomized trial and randomized to the intervention arm - home screening and treatment for neonatal hyperbilirubinemia - or the comparison arm to receive usual care. In the intervention arm, CHWs will provide mothers with two prenatal visits, visit newborns by 2 days of age and then daily for 3 days to measure transcutaneous bilirubin (TcB) and monitor for clinical danger signs. Newborns without danger signs but with a TcB above the treatment threshold, but >15 mg/dL will be treated with light-emitting diode (LED) phototherapy at home. Newborns with danger signs or TcB ≥15 mg/dL will be referred to a hospital for treatment. Treatment rates for neonatal hyperbilirubinemia in each arm will be compared. Conclusion This study will evaluate the effectiveness of CHW-led home phototherapy to increase neonatal hyperbilirubinemia treatment rates in rural Bangladesh. LMICs are expanding access to postnatal care by using CHWs, and our work will give CHWs a curative treatment option for neonatal hyperbilirubinemia. Similar projects in other LMICs can be pursued to dramatically extend healthcare access to vulnerable newborns with hyperbilirubinemia.
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Christensen RD, Bahr TM, Wong RJ, Vreman HJ, Bhutani VK, Stevenson DK. A "Gold Standard" Test for Diagnosing and Quantifying Hemolysis in Neonates and Infants. J Perinatol 2023; 43:1541-1547. [PMID: 37468612 DOI: 10.1038/s41372-023-01730-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 07/03/2023] [Accepted: 07/11/2023] [Indexed: 07/21/2023]
Abstract
Identifying "gold standard" diagnostic tests can promote evidence-based neonatology practice. Hemolysis is a pathological shortening of the erythrocyte lifespan, differing from erythrocyte senescence in responsible mechanisms and clinical implications. Diagnosing hemolysis goes beyond a binary (yes vs. no) determination. It is characterized according to magnitude, and as acute vs. chronic, and genetically based vs. not. For neonates with significant hyperbilirubinemia or anemia, detecting hemolysis and quantifying its magnitude provides diagnostic clarity. The 2022 American Academy of Pediatrics (AAP) Clinical Practice Guideline on management of hyperbilirubinemia in the newborn states that hemolysis is a risk factor for developing significant hyperbilirubinemia and neurotoxicity. The guideline recommends identifying hemolysis from any cause, but specific guidance is not provided. A spectrum of laboratory tests has been endorsed as diagnostic methods for hemolysis. Herein we examine these laboratory tests and recommend one as the "gold standard" for diagnosing and quantifying hemolysis in neonates and infants.
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Okwundu CI, Olowoyeye A, Uthman OA, Smith J, Wiysonge CS, Bhutani VK, Fiander M, Gautham KS. Transcutaneous bilirubinometry versus total serum bilirubin measurement for newborns. Cochrane Database Syst Rev 2023; 5:CD012660. [PMID: 37158489 PMCID: PMC10167941 DOI: 10.1002/14651858.cd012660.pub2] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
BACKGROUND Jaundice is a very common condition in newborns, affecting up to 60% of term newborns and 80% of preterm newborns in the first week of life. Jaundice is caused by increased bilirubin in the blood from the breakdown of red blood cells. The gold standard for measuring bilirubin levels is obtaining a blood sample and processing it in a laboratory. However, noninvasive transcutaneous bilirubin (TcB) measurement devices are widely available and used in many settings to estimate total serum bilirubin (TSB) levels. OBJECTIVES To determine the diagnostic accuracy of transcutaneous bilirubin measurement for detecting hyperbilirubinaemia in newborns. SEARCH METHODS We searched CENTRAL, MEDLINE, Embase, CINAHL and trial registries up to 18 August 2022. We also checked the reference lists of all included studies and relevant systematic reviews for other potentially eligible studies. SELECTION CRITERIA We included cross-sectional and prospective cohort studies that evaluated the accuracy of any TcB device compared to TSB measurement in term or preterm newborn infants (0 to 28 days postnatal age). All included studies provided sufficient data and information to create a 2 × 2 table for the calculation of measures of diagnostic accuracy, including sensitivities and specificities. We excluded studies that only reported correlation coefficients. DATA COLLECTION AND ANALYSIS Two review authors independently applied the eligibility criteria to all citations from the search and extracted data from the included studies using a standard data extraction form. We summarised the available results narratively and, where possible, we combined study data in a meta-analysis. MAIN RESULTS We included 23 studies, involving 5058 participants. All studies had low risk of bias as measured by the QUADAS 2 tool. The studies were conducted in different countries and settings, included newborns of different gestational and postnatal ages, compared various TcB devices (including the JM 101, JM 102, JM 103, BiliChek, Bilitest and JH20-1C) and used different cutoff values for a positive result. In most studies, the TcB measurement was taken from the forehead, sternum, or both. The sensitivity of various TcB cutoff values to detect significant hyperbilirubinaemia ranged from 74% to 100%, and specificity ranged from 18% to 89%. AUTHORS' CONCLUSIONS The high sensitivity of TcB to detect hyperbilirubinaemia suggests that TcB devices are reliable screening tests for ruling out hyperbilirubinaemia in newborn infants. Positive test results would require confirmation through serum bilirubin measurement.
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Adhikari A, Bhutani VK, Mondal S, Das M, Darbar S, Ghosh R, Polley N, Das AK, Bhattacharya SS, Pal D, Mallick AK, Pal SK. Chemoprevention of bilirubin encephalopathy with a nanoceutical agent. Pediatr Res 2023; 93:827-837. [PMID: 35794251 DOI: 10.1038/s41390-022-02179-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 06/08/2022] [Accepted: 06/19/2022] [Indexed: 11/09/2022]
Abstract
BACKGROUND Targeted rapid degradation of bilirubin has the potential to thwart incipient bilirubin encephalopathy. We investigated a novel spinel-structured citrate-functionalized trimanganese tetroxide nanoparticle (C-Mn3O4 NP, the nanodrug) to degrade both systemic and neural bilirubin loads. METHOD Severe neonatal unconjugated hyperbilirubinemia (SNH) was induced in neonatal C57BL/6j mice model with phenylhydrazine (PHz) intoxication. Efficiency of the nanodrug on both in vivo bilirubin degradation and amelioration of bilirubin encephalopathy and associated neurobehavioral sequelae were evaluated. RESULTS Single oral dose (0.25 mg kg-1 bodyweight) of the nanodrug reduced both total serum bilirubin (TSB) and unconjugated bilirubin (UCB) in SNH rodents. Significant (p < 0.0001) UCB and TSB-degradation rates were reported within 4-8 h at 1.84 ± 0.26 and 2.19 ± 0.31 mg dL-1 h-1, respectively. Neural bilirubin load was decreased by 5.6 nmol g-1 (p = 0.0002) along with improved measures of neurobehavior, neuromotor movements, learning, and memory. Histopathological studies confirm that the nanodrug prevented neural cell reduction in Purkinje and substantia nigra regions, eosinophilic neurons, spongiosis, and cell shrinkage in SNH brain parenchyma. Brain oxidative status was maintained in nanodrug-treated SNH cohort. Pharmacokinetic data corroborated the bilirubin degradation rate with plasma nanodrug concentrations. CONCLUSION This study demonstrates the in vivo capacity of this novel nanodrug to reduce systemic and neural bilirubin load and reverse bilirubin-induced neurotoxicity. Further compilation of a drug-safety-dossier is warranted to translate this novel therapeutic chemopreventive approach to clinical settings. IMPACT None of the current pharmacotherapeutics treat severe neonatal hyperbilirubinemia (SNH) to prevent risks of neurotoxicity. In this preclinical study, a newly investigated nano-formulation, citrate-functionalized Mn3O4 nanoparticles (C-Mn3O4 NPs), exhibits bilirubin reduction properties in rodents. Chemopreventive properties of this nano-formulation demonstrate an efficacious, efficient agent that appears to be safe in these early studies. Translation of C-Mn3O4 NPs to prospective preclinical and clinical trials in appropriate in vivo models should be explored as a potential novel pharmacotherapy for SNH.
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Good WV, Wong RJ, Norcia AM, Stevenson DK, Slagel T, Hou C, Bhutani VK. Bilirubin-induced neurotoxicity and visuocortical dysfunction. J Perinatol 2023; 43:240-241. [PMID: 35618749 PMCID: PMC9699893 DOI: 10.1038/s41372-022-01417-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 05/02/2022] [Accepted: 05/18/2022] [Indexed: 02/06/2023]
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Kemper AR, Newman TB, Slaughter JL, Maisels MJ, Watchko JF, Downs SM, Grout RW, Bundy DG, Stark AR, Bogen DL, Holmes AV, Feldman-Winter LB, Bhutani VK, Brown SR, Maradiaga Panayotti GM, Okechukwu K, Rappo PD, Russell TL. Clinical Practice Guideline Revision: Management of Hyperbilirubinemia in the Newborn Infant 35 or More Weeks of Gestation. Pediatrics 2022; 150:188726. [PMID: 35927462 DOI: 10.1542/peds.2022-058859] [Citation(s) in RCA: 131] [Impact Index Per Article: 65.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/29/2022] [Indexed: 11/24/2022] Open
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Blanchette V, Manley-Kucey M, Zipursky R, Odame I, Bhutta Z, Hitzler J, Saigal S, Bhutani VK, Coppes MJ. Alvin Zipursky (1930-2021): an unsurpassable mentor, counselor, and child health advocate. Pediatr Res 2021. [PMID: 34857878 DOI: 10.1038/s41390-021-01867-y] [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: 11/09/2022]
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Bahr TM, Henry E, Christensen RD, Minton SD, Bhutani VK. A New Hour-Specific Serum Bilirubin Nomogram for Neonates ≥35 Weeks of Gestation. J Pediatr 2021; 236:28-33.e1. [PMID: 34023346 DOI: 10.1016/j.jpeds.2021.05.039] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 05/13/2021] [Accepted: 05/14/2021] [Indexed: 10/21/2022]
Abstract
OBJECTIVE To develop a statistically rigorous, hour-specific bilirubin nomogram for newborns based on a very large data set; and use it prospectively as a replacement for the 1999 Bhutani nomogram. STUDY DESIGN This was a retrospective analysis of first total serum bilirubin (TSB) measurements from 15 years of universal bilirubin screening during birth hospitalizations at 20 Intermountain Healthcare hospitals. Hour-specific TSB values were assembled into a nomogram by percentile, and subgroups were compared. RESULTS The information obtained included robust data in the first 12 hours after birth (which was not included in the 1999 nomogram), general agreement with the 1999 nomogram for values in the first 60 hours, but higher 75th and 95th percentile TSB values thereafter in the new version, no difference in TSB between male and female infants, higher TSB values among earlier gestation neonates (350/7-366/7 weeks vs ≥37 weeks, P < .0001), and lower TSB values in neonates of Black race (P < .0001) and higher values in neonates of Asian race (P < .001). CONCLUSIONS An updated and more informative Bhutani neonatal bilirubin nomogram, based on 140 times the number of subjects included the 1999 version, is now in place in our health care system.
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Vidavalur R, Bhutani VK. Economic evaluation of point of care universal newborn screening for glucose-6-Phosphate dehydrogenase deficiency in United States. J Matern Fetal Neonatal Med 2021; 35:5745-5753. [PMID: 33627013 DOI: 10.1080/14767058.2021.1892067] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND OBJECTIVES Glucose-6-Phosphate Dehydrogenase (G6PD) deficiency is frequent inherited enzymopathy that poses potentially preventable risk for extreme hyperbilirubinemia (EHB) which can, rarely, lead to acute bilirubin encephalopathy, childhood kernicterus and death. We aimed to estimate quality adjusted life years (QALY) lost due to G6PD deficiency associated with EHB and economic costs to best estimate value of universal pre-discharge screening. METHODS We did a cost utility analysis for US birth cohort utilizing pre-discharge screening decision tree model to estimate population burden and EHB outcomes, based on literature search and expert opinions. Employing human capital approach, we measured health benefits in terms of QALYs and economic losses. QALYs and costs were discounted at 3%; one-way sensitivity analysis was used for decision variables. RESULTS We determined for USA live births of 3.86 million in 2017, 1464 cases of EHB were estimated to be due to G6PD deficiency (CI 95%; range: 1270-1656) and contributed 2 deaths (CI 95%; range 1.3-3.2) and 14 (CI 95%; range: 9.1-21.5) cases of kernicterus. Over lifetime horizon, the model predicted undiscounted and discounted gains of 165 (102-252) life years; 241 (183-433) QALYs and 16 (9.9-24.5) life years; 89 (67.9-160.5) QALYs, respectively. Assuming 50% effectiveness, benefit cost ratios ranged from 0.19 to 3.42 for diverse operational settings. The cost to prevent a single case of kernicterus was $2.7 to 6.8 million per annum with cost per QALY gained at $35,946 to $89,159. CONCLUSION At incremental cost-effective threshold of $100,000/life year, pre-discharge screening would be expected to prove cost effective in preventing EHB related morbidities and mortality attributed to G6PD deficiency.
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Sheth K, Tuyisenge L, Bhutani VK. Does provider access to technology improve health care? Evidence from a national distribution of phototherapy in Rwanda. Semin Perinatol 2021; 45:151359. [PMID: 33317824 DOI: 10.1016/j.semperi.2020.151359] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
This study assessed a large-scale national distribution of phototherapy (PT) for infants at risk for severe hyperbilirubinemia. We combined healthcare data for infants with jaundice (using local clinical definitions) with a randomized roll-out of PT devices to estimate the causal effect of the national distribution. Pre-intervention, <3.0% of infants were diagnosed as jaundiced, 41.7% of these infants were not tested for bilirubin, and 17.5% and 34.3% were treated with direct sunlight or standard PT, respectively. We found that providing hospitals with PT devices increased care practices: infants with jaundice were more likely to receive PT [+6.26 percentage points (pp)], and less likely to receive sunlight (-6.96 pp) or standard (irradiance < 30 µW/cm2/nm) PT (-14.0 pp). However, the intervention did not affect the low diagnosis rate. Our findings suggest that complementary investments in improving diagnosis and monitoring of bilirubin levels increases the benefits of expanding provider access to PT devices.
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Du L, Ma X, Shen X, Bao Y, Chen L, Bhutani VK. Neonatal hyperbilirubinemia management: Clinical assessment of bilirubin production. Semin Perinatol 2021; 45:151351. [PMID: 33308896 DOI: 10.1016/j.semperi.2020.151351] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
The predominant cause of elevated total/plasma bilirubin (TB) levels is from an increase in bilirubin production primarily because of ongoing hemolysis. If undiagnosed or untreated, the risk for developing extreme neonatal hyperbilirubinemia and possibly bilirubin-induced neurological dysfunction (BIND) is increased. Since carbon monoxide (CO) and bilirubin are produced in equimolar amounts during the heme catabolic process, measurements of end-tidal CO levels, corrected for ambient CO (ETCOc) can be used as a direct indicator of ongoing hemolysis. A newly developed point-of-care ETCOc device has been shown to be a useful for identifying hemolysis-associated hyperbilirubinemia in newborns. This review summarizes the biology of bilirubin production, the clinical utility of a novel device to identify neonates undergoing hemolysis, and a brief introduction on the use of ETCOc measurements in a cohort of neonates in China.
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Bhutani VK, Wong RJ. A global approach to prevent kernicterus: A dedication to Lois Johnson-Hamerman (Sep. 14, 1927 to Aug. 11, 2019). Semin Perinatol 2021; 45:151350. [PMID: 33339605 DOI: 10.1016/j.semperi.2020.151350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Wong RJ, Montiel C, Kunda M, Stevenson DK, Bhutani VK. A novel point-of-care device for measuring glucose-6-phosphate dehydrogenase enzyme deficiency. Semin Perinatol 2021; 45:151356. [PMID: 33293060 PMCID: PMC7856170 DOI: 10.1016/j.semperi.2020.151356] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Extreme hyperbilirubinemia can cause bilirubin neurotoxicity. Infants with glucose-6-phosphate dehydrogenase (G6PD) deficiency can develop hemolysis and thus are at high risk. We evaluated a device that quantitatively measures G6PD activity kinetically using digital microfluidics (DMF). Intra- and inter-instrument and -day imprecision (CVs) were first assessed. G6PD activity in 86 samples was then measured and compared between DMF and 2 reference methods. Overall DMF reproducibility was 3.8% over 5 days by 2 operators on 2 instruments. Mean intra- and inter-instrument variabilities were 3.6% and 3.9%, respectively (n = 28), with a user variability of 4.3%. Mean G6PD activity was 6.40±4.62 and 6.37±4.62 U/g hemoglobin for DMF and Reference Methods 1 (n = 46) and 12.15±3.86 and 11.48±1.55 for DMF and 2 (n = 40), respectively, and strongly correlated (r = 0.95 and 0.95) with mean biases of +0.04±2.90 and +0.67±1.55 for methods 1 and 2, respectively. The novel device could be used for early newborn G6PD screening.
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Jegathesan T, Ray JG, Bhutani VK, Keown-Stoneman CDG, Campbell DM, Shah V, Berger H, Hayeems RZ, Sgro M. Hour-Specific Total Serum Bilirubin Percentiles for Infants Born at 29-35 Weeks' Gestation. Neonatology 2021; 118:710-719. [PMID: 34710869 DOI: 10.1159/000519496] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 08/20/2021] [Indexed: 11/19/2022]
Abstract
INTRODUCTION As preterm infants are susceptible to hyperbilirubinemia, they require frequent close monitoring. Prior to initiation of phototherapy, hour-specific total serum bilirubin (TSB) percentile cut-points are lacking in these infants, which led to the current study. METHODS A multi-site retrospective cohort study of preterm infants born between January 2013 and June 2017 was completed at 3 NICUs in Ontario, Canada. A total of 2,549 infants born at 290/7-356/7 weeks' gestation contributed 6,143 pre-treatment TSB levels. Hour-specific TSB percentiles were generated using quantile regression, further described by degree of prematurity, and among those who subsequently received phototherapy. RESULTS Among all infants, at birth, hour-specific pre-treatment, TSB percentiles were 36.1 µmol/L (95% confidence interval [CI]: 34.3-39.3) at the 40th, 52.3 µmol/L (49.4-55.1) at the 75th, and 79.5 µmol/L (72.1-89.6) at the 95th percentiles. The corresponding percentiles were 39.3 μmol/L (35.9-43.2), 55.4 μmol/L (52.1-60.2), and 87.1 μmol/L (CI 70.5-102.4) prior to initiating phototherapy and 24.4 μmol/L (20.4-28.8), 35.3 μmol/L (31.1-41.5), and 52.0 μmol/L (46.1-62.4) among those who did not receive phototherapy. Among infants born at 29-32 weeks, pre-treatment TSB percentiles were 53.9 µmol/L (49.4-61.0) and 95.5 µmol/L (77.5-105.0) at the 75th and 95th percentiles, with respective values of 48.7 µmol/L (43.0-52.3), and 74.1 µmol/L (64.8-83.2) for those born at 33-35 weeks' gestation. CONCLUSION Hour-specific TSB percentiles, derived from a novel nomogram, may inform how bilirubin is described in preterm newborns. Further research of pre-treatment TSB levels is required before clinical consideration.
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Bahr TM, Henry E, Hulse W, Baer VL, Prchal JT, Bhutani VK, Christensen RD. Early Hyperbilirubinemia in Neonates with Down Syndrome. J Pediatr 2020; 219:140-145. [PMID: 32014279 DOI: 10.1016/j.jpeds.2019.12.039] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 12/03/2019] [Accepted: 12/18/2019] [Indexed: 12/18/2022]
Abstract
OBJECTIVE To compare total serum bilirubin (TSB) levels, phototherapy usage, and hospital readmission for jaundice among neonates with Down syndrome vs controls. STUDY DESIGN A retrospective cohort study using 15 years of multihospital data. We created control reference intervals (5th, median, and 95th percentiles) for initial TSB values hourly during the first days after birth, and determined the proportion of neonates with Down syndrome whose TSB exceeded the 95th percentile control interval. We determined the proportion with an initial TSB exceeding the upper control reference interval, the highest TSB recorded, the percentage of neonates receiving phototherapy, and the rate of hospital readmission for jaundice treatment. RESULTS We compared 357 neonates with Down syndrome with 377 368 controls. Compared with controls, those with Down syndrome had 4.7 times the risk (95% CI, 3.9-5.7; P < .0001) of an initial TSB exceeding the 95th percentile control interval (23.5% vs 5.0%), 8.9 times (95% CI, 8.1-9.8; P < .0001) the phototherapy usage (62.2% vs 7.0%), and 3.6 times (95% CI, 1.6-8.2; P = .0075) the readmission rate for jaundice (17.4 vs 4.8 per 1000 live births). CONCLUSIONS Neonates with Down syndrome have a substantial risk of early hyperbilirubinemia. The American Academy of Pediatrics currently advises obtaining an early screening complete blood count from neonates with Down syndrome. We submit that assessing their TSB is also advisable.
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