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Slemmer A, Klamer B, Schmerge C, Lauden S, Texler C, Fennell M, Lowing D, Leyenaar JK, Bode RS. Comparing Outcomes Between Direct and ED Admissions for Neonatal Hyperbilirubinemia. Hosp Pediatr 2024; 14:421-429. [PMID: 38766712 DOI: 10.1542/hpeds.2023-007527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 01/22/2024] [Accepted: 01/24/2024] [Indexed: 05/22/2024]
Abstract
OBJECTIVES Pediatric direct admissions (DA) have multiple benefits including reduced emergency department (ED) volumes, greater patient and provider satisfaction, and decreased costs without compromising patient safety. We sought to compare resource utilization and outcomes between patients with a primary diagnosis of neonatal hyperbilirubinemia directly admitted with those admitted from the ED. METHODS Single-center, retrospective study at a large, academic, free-standing children's hospital (2017-2021). Patients were between 24 hours and 14 days old with a gestational age of ≥35 weeks, admitted with a primary diagnosis of neonatal hyperbilirubinemia. Outcomes included length of stay (LOS), time to clinical care, resource utilization, NICU transfer, and 7-day readmission for phototherapy. RESULTS A total of 1098 patients were included, with 276 (25.1%) ED admissions and 822 (74.9%) DAs. DAs experienced a shorter median time to bilirubin level collection (1.9 vs 2.1 hours, P = .003), received less intravenous fluids (8.9% vs 51.4%, P < .001), had less bilirubin levels collected (median of 3.0 vs 4.0, P < .001), received phototherapy sooner (median of 0.8 vs 4.2 hours, P < .001), and had a shorter LOS (median of 21 vs 23 hours, P = .002). One patient who was directly admitted required transfer to the NICU. No differences were observed in the 7-day readmission rates for phototherapy. CONCLUSIONS Directly admitting patients for the management of neonatal hyperbilirubinemia is a preferred alternative to ED admission as our study demonstrated that DAs had a shorter time to clinical care, shorter LOS, and less unnecessary resource utilization with no difference in 7-day readmissions for phototherapy.
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Affiliation(s)
- Ashleigh Slemmer
- Division of Hospital Medicine, Nationwide Children's Hospital, Columbus, Ohio
| | - Brett Klamer
- Biostatistics Resource at Nationwide Children's Hospital, Nationwide Children's Hospital, Columbus, Ohio &The Center for Biostatistics, The Ohio State University, Columbus, Ohio
| | - Christine Schmerge
- Division of Hospital Medicine, Nationwide Children's Hospital, Columbus, Ohio
| | - Stephanie Lauden
- Department of Pediatrics, The University of Colorado, Denver, Colorado
| | - Cara Texler
- Division of Hospital Medicine, Nationwide Children's Hospital, Columbus, Ohio
| | - Meghan Fennell
- Division of Hospital Medicine, Nationwide Children's Hospital, Columbus, Ohio
| | - Dena Lowing
- Division of Hospital Medicine, Nationwide Children's Hospital, Columbus, Ohio
| | - JoAnna K Leyenaar
- Department of Pediatrics, Dartmouth Hitchcock Medical Center, Lebanon, New Hampshire
| | - Ryan S Bode
- Division of Hospital Medicine, Nationwide Children's Hospital, Columbus, Ohio
- Center for Clinical Excellence at Nationwide Children's Hospital, Columbus, Ohio
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Hanford J, McQuay C, Vachharajani A, Obi O, Anders A. Reducing Procedural Pain and Avoiding Peripheral Intravenous Catheters by Implementing a Feeding Protocol for Late Preterm Infants: A Quality Improvement Project. Adv Neonatal Care 2024; 24:219-226. [PMID: 38241696 DOI: 10.1097/anc.0000000000001125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2024]
Abstract
BACKGROUND Late preterm births account for a large portion of preterm births, yet the optimal method of nutrition and enteral feeding in this population remains unclear and often involves intravenous (IV) fluids. PURPOSE To develop and implement a late preterm feeding protocol in order to decrease the necessity of IV access, decrease the use of starter parenteral nutrition (PN), and reduce the pain endured by an infant in the neonatal intensive care unit. METHODS The Plan-Do-Study-Act quality improvement model was utilized as a framework for the implementation of this quality improvement project. A literature review was conducted and subsequently, a feeding protocol was developed and included the more judicious use of starter PN. This protocol was implemented, evaluated, and adopted. A second Plan-Do-Study-Act cycle was completed with the addition of an auto-text reminder incorporated into admission notes in the electronic medical record. RESULTS The implementation of the protocol significantly reduced placement of IV access and the use of starter (PN) in late preterm infants without considerable differences in balancing measures. The percentage of infants who received peripheral IV access declined considerably from 70% to 42% ( P = .0017) subsequently, less pain endured by the infants. There was a decrease in the initiation of starter PN from 55% to 7% ( P < .00001). IMPLICATIONS FOR PRACTICE Administering enteral feedings on admission to stable, late preterm infants reduced the need for peripheral IV access and thus decreased pain from this procedure.
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Affiliation(s)
- Jennifer Hanford
- Neonatal Intensive Care Unit, University of Missouri Healthcare, Women's Hospital, Columbia
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Cheng X, Lin B, Yang Y, Yu Y, Fu Y, Yang C. End-tidal carbon monoxide concentrations measured within 48 hours of birth predict hemolytic hyperbilirubinemia. J Perinatol 2024; 44:897-901. [PMID: 38627593 DOI: 10.1038/s41372-024-01967-7] [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: 03/03/2024] [Revised: 04/04/2024] [Accepted: 04/08/2024] [Indexed: 06/09/2024]
Abstract
OBJECTIVES To determine, among neonates at-risk for hyperbilirubinemia, whether measuring end-tidal carbon monoxide concentration (ETCOc) twice before 48 hours could identify those who would develop hyperbilirubinemia and differentiate hemolytic vs. non-hemolytic causes. METHODS Prospective study on neonates meeting criteria "at-risk for hyperbilirubinemia." Routine bilirubin measurements and 10-day follow-up were used to categorize neonates as; (1) normal (no hyperbilirubinemia, all bilirubins <95th percentile of Bhutani nomogram), (2) having hemolytic hyperbilirubinemia (bilirubin ≥95th percentile, DAT+, elevated retic, or G6PD+), or (3) having non-hemolytic hyperbilirubinemia. RESULTS 386 neonates were enrolled. 321 (83%) did not develop hyperbilirubinemia and 65 (17%) did, of which 29 were judged hemolytic and 36 non-hemolytic. High ETCOc differentiated the hemolytic group (p < 0.001). First-day ETCOc correlated with bilirubin and with reticulocyte count (r = 0.896 and 0.878) and sensitivity and specificity for predicting hyperbilirubinemia were excellent (83% and 95%). CONCLUSIONS ETCO measurement in the first 48 hours after birth predicts hemolytic hyperbilirubinemia.
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Affiliation(s)
- Xiaoqin Cheng
- Department of Neonatology, Shenzhen Maternity and Child Healthcare Hospital, The First School of Clinical Medicine, Southern Medical University, Shenzhen, Guangdong, China
| | - Bingchun Lin
- Department of Neonatology, Shenzhen Maternity and Child Healthcare Hospital, The First School of Clinical Medicine, Southern Medical University, Shenzhen, Guangdong, China
| | - Yong Yang
- Department of Neonatology, Shenzhen Maternity and Child Healthcare Hospital, The First School of Clinical Medicine, Southern Medical University, Shenzhen, Guangdong, China
| | - Yanliang Yu
- Department of Neonatology, Shenzhen Maternity and Child Healthcare Hospital, The First School of Clinical Medicine, Southern Medical University, Shenzhen, Guangdong, China
| | - Yongping Fu
- Department of Neonatology, Shenzhen Maternity and Child Healthcare Hospital, The First School of Clinical Medicine, Southern Medical University, Shenzhen, Guangdong, China
| | - Chuanzhong Yang
- Department of Neonatology, Shenzhen Maternity and Child Healthcare Hospital, The First School of Clinical Medicine, Southern Medical University, Shenzhen, Guangdong, China.
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Daggle L, Sharma N, Setiady I, Leonard K. Management of Neonatal Hyperbilirubinemia: Shedding Light on the American Academy of Pediatrics 2022 Clinical Practice Guideline Revision. Pediatr Ann 2024; 53:e208-e216. [PMID: 38852082 DOI: 10.3928/19382359-20240407-02] [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: 06/10/2024]
Abstract
Neonatal hyperbilirubinemia is one of the most common conditions managed by pediatricians. Although many infants are affected, most will experience complete resolution without complication. Acute bilirubin encephalopathy and kernicterus are rare yet debilitating sequelae of severe hyperbilirubinemia that can be avoided through careful monitoring and treatment with phototherapy. Appropriate management of neonatal hyperbilirubinemia must balance the risks of these severe conditions with the effects of overtreatment. Released in 2022, the American Academy of Pediatrics revised the clinical practice guideline for the management of hyperbilirubinemia, which aims to provide that balance through updates to the previous guideline. This article will provide the reader with (1) an evidence-based harm and benefit analysis of the guideline, (2) an overview of key changes and clarifications made in the new guideline, and (3) a practical summary of guideline updates. [Pediatr Ann. 2024;53(6):e208-e216.].
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Abrams M, Gosselin K, Roth CK, Hoffman N. A Randomized Trial Comparing NeoLight Skylife and Blanket Phototherapy in Newborn Indirect Hyperbilirubinemia. Clin Pediatr (Phila) 2024; 63:774-778. [PMID: 37522330 DOI: 10.1177/00099228231190120] [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: 08/01/2023]
Abstract
This investigation aimed to assess the safety and efficacy of NeoLight's Skylife phototherapy device for the treatment of hyperbilirubinemia. A prospective, two-arm, randomized, unblinded controlled investigation compared total serum bilirubin (TSB) levels at baseline and discharge for a new phototherapy device (Skylife) with an existing phototherapy treatment in newborn infants. The repeated-measures analysis of variance (RM-ANOVA) indicated a significant main effect for the treatment condition, F(1, 54) = 4.041, P = .049. Post hoc findings showed that the Skylife group had significantly lower TSB levels following treatment (n = 28, Mean = 11.36, SD = 1.69) compared with the standard of care group (n = 28, Mean = 12.37, SD = 2.08), t(54) = 2.01, P = .049). The Skylife phototherapy device was as effective as the currently used therapy, with a shift toward a more rapid decline in bilirubin levels. Using this device may potentially decrease the length of therapy and hospitalization.Clinical Trial Registration Comparison of Phototherapy Using Neolight Skylife Versus Standardized Phototherapy for Hyperbilirubinemia in Newborns is registered at clinicaltrials.gov as NCT03599258.
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Affiliation(s)
- Matthew Abrams
- HonorHealth Research Institute, Scottsdale, AZ, USA
- Mednax Inc., Sunrise, FL, USA
- Arizona Neonatology, Phoenix, AZ, USA
| | - Kevin Gosselin
- HonorHealth Research Institute, Scottsdale, AZ, USA
- AriTex, Chandler, AZ, USA
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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] [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 (1858 participants) 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: - may reduce readmission to the hospital for hyperbilirubinemia (RR 0.25, 95% CI 0.14 to 0.46; P < 0.0001; moderate-certainty evidence); - probably has little or no effect on the rate of exchange transfusion (RR 0.20, 95% CI 0.01 to 14.16; low-certainty evidence); - may increase the number of newborns who require phototherapy prior to discharge (RR 2.67, 95% CI 1.56 to 4.55; moderate-certainty evidence). - probably has 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 may reduce readmission for hyperbilirubinemia compared to visual inspection. Low-certainty evidence also suggests that TcB screening probably has little or no effect on the rate of exchange transfusion compared to visual inspection. However, moderate-certainty evidence suggests that TcB screening may increase the number of newborns that require phototherapy before discharge compared to visual inspection. Low-certainty evidence suggests that TcB screening probably has 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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Affiliation(s)
- Charles I Okwundu
- Centre for Evidence-based Health Care, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Vinod K Bhutani
- Division of Neonatal and Developmental Medicine, Department of Pediatrics, Stanford School of Medicine, Lucile Packard Children's Hospital, Palo Alto, California, USA
| | - Olalekan A Uthman
- Warwick Centre for Applied Health Research and Delivery (WCAHRD), Division of Health Sciences, Warwick Medical School, The University of Warwick, Coventry, UK
| | - Johan Smith
- Department of Paediatrics and Child Health, Stellenbosch University, Faculty of Health Sciences, Stellenbosch, South Africa
| | - Abiola Olowoyeye
- Phoenix Children's Hospital and University of Arizona College of Medicine, Phoenix, Arizona, USA
| | | | - Charles S Wiysonge
- Cochrane South Africa, South African Medical Research Council, Cape Town, South Africa
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Demirel HN, Ozumut SS, Ovalı HF. Continuous versus intermittent phototherapy in treatment of neonatal jaundice: a randomized controlled trial. Eur J Pediatr 2024:10.1007/s00431-024-05610-7. [PMID: 38767694 DOI: 10.1007/s00431-024-05610-7] [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: 03/20/2024] [Revised: 05/07/2024] [Accepted: 05/11/2024] [Indexed: 05/22/2024]
Abstract
Phototherapy (PT) is a widely used treatment for neonatal jaundice, yet the ideal model of application remains controversial. In this study, the effects of continuous phototherapy (CPT) and intermittent phototherapy (IPT) models were compared in the treatment of neonatal indirect hyperbilirubinemia (IHB) and whether IPT is a superior modality is investigated. Single-centre parallel randomized controlled open label trial. A computer-based table of random numbers was used to allocate treatments. Newborns ≥ 34 weeks' gestation who received phototherapy in our neonatal intensive care unit (NICU) between July 2022 and April 2023 were included. CPT was applied continuously for 6 h, and IPT was applied as 2 cycles of 1 h on and 2 h off in a 6-h session. Rebound TSB was measured 8 h after phototherapy was stopped in both groups. Phototherapy duration, TSB reduction rate and rebound bilirubin rate were compared between intervention groups. One hundered and four neonates met the inclusion criteria during the study period. CPT and IPT were each used in 52 newborns. Demographic characteristics of the study groups, including sex, mode of delivery, birth weight, admission weight, age at postnatal presentation, diet, discharge weight, and history of PT in siblings, were similar (p > 0.05). The most common cause of IHB in both groups was ABO incompatibility. The median phototherapy time was 12 h (6-15) in the CPT group and 4 h (2-4) in the IPT group (p < 0.001). The mean rate of bilirubin decrease was 1.12 ± 0.73 mg/dl/h in those who underwent IPT and 0.51 ± 0.33 mg/dl/h in those who underwent CPT (p < 0.001). The mean rebound bilirubin rate 8 h after phototherapy was 0.08 ± 0.28 mg/dl/h in the CPT group, and -0.01 ± 0.17 mg/dl/h in the IPT group (p = 0.039). The length of hospital stay was longer in the CPT group (p = 0.032). Skin rash, diarrhoea and increased body temperature were less frequent in the IPT group (p < 0.001). CONCLUSIONS In this study, IPT was found to be at least as effective as CPT in reducing total serum bilirubin. Even though the duration of PT is shorter in IPT, the slower rate of rebound bilirubin, shorter hospital stays and lower incidence of side effects indicated that intermittent phototherapy is superior to continuous phototherapy. Choosing IPT over CPT is a more rational approach in neonatal jaundice. CLINICALTRIALS gov Identifier: NCT06386731 (registered retrospectively on 23/04/2024) What is Known: • PT is common used in the treatment of neonatal jaundice. • There is no standard model of application for PT. WHAT IS NEW • The IPT model is as effective as CPT. • Newborns are discharged faster with IPT.
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Affiliation(s)
- Hande Nur Demirel
- Goztepe Prof. Dr Suleyman Yalcın City Hospital, Department of Paediatrics, Barbaros Mah, Ardic sokak Kentplus F3/23, 34746, Atasehir, Istanbul, Turkey
| | - Sibel Sevuk Ozumut
- Goztepe Prof. Dr Suleyman Yalcın City Hospital, Department of Paediatrics, Barbaros Mah, Ardic sokak Kentplus F3/23, 34746, Atasehir, Istanbul, Turkey.
| | - Husnu Fahri Ovalı
- Istanbul Medeniyet University, Goztepe Prof. Dr Suleyman Yalcın City Hospital, Department of Paediatrics and Neonatology, Istanbul, Turkey
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Smith M, Ridgway A, Mullikin D. Neonatal Hyperbilirubinemia Admissions Following Clinical Practice Guideline Implementation. Mil Med 2024; 189:e1259-e1262. [PMID: 37975240 DOI: 10.1093/milmed/usad427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 09/08/2023] [Accepted: 10/20/2023] [Indexed: 11/19/2023] Open
Abstract
INTRODUCTION Treatment of neonatal hyperbilirubinemia remains one of the most common reasons for readmission following delivery. Revised clinical practice guidelines (CPGs) for the treatment of neonatal hyperbilirubinemia were published on August 5, 2022. This report describes the preliminary outcomes following implementation of the new CPGs at Tripler Army Medical Center. MATERIALS AND METHODS A retrospective chart review was performed for the 12 months prior to implementation and the 5 months post implementation. RESULTS Bilirubin admissions decreased from 15.6% of total admissions during the 12 months prior to the new guidelines (69/441) to 4.1% of admissions (8/194) during the 5 months after implementation of the new guidelines (P < 0.001). This corresponds to a 74% reduction (risk ratio = 0.26, 95% confidence interval [CI] 0.13 to 0.54). The decrease in admissions was found to correlate to greater than $140,000 in annual savings. CONCLUSION Adhering to the revised CPGs has the potential to increase resource availability at a time when nursing shortages and financial instability are impacting health care systems nationwide. No short-term adverse events were noted; however, long-term follow up will be needed.
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Affiliation(s)
- Morgan Smith
- Pediatric Residency Program, Tripler Army Medical Center, Honolulu, HI 96859, USA
| | - Austin Ridgway
- Pediatric Residency Program, Tripler Army Medical Center, Honolulu, HI 96859, USA
| | - Dolores Mullikin
- Pediatric Residency Program, Tripler Army Medical Center, Honolulu, HI 96859, USA
- Pediatric Faculty, The University of Uniformed Services, Bethesda, MD 20814, USA
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Imamura T, Kanai Y, Yamaguchi S, Namai Y. New Roles for Albumin/Globulin Ratio in the Early-Onset Hyperbilirubinemia among Infants Born Weighing 1,000 to 2,499 Grams. Am J Perinatol 2024; 41:e69-e75. [PMID: 35613928 DOI: 10.1055/s-0042-1749387] [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: 11/01/2022]
Abstract
INTRODUCTION Early-onset hyperbilirubinemia (EOH) is a clinical issue for premature infants. We predicted that EOH management would be improved by fast results from common laboratory tests. Total serum bilirubin (TSB) level and the albumin/globulin ratio may contribute to improving the management of EOH. OBJECTIVE The aim of the study is to examine the relationship between EOH and perinatal variables among infants born weighing 1,000 to 2,499 g. STUDY DESIGNS A single center study was undertaken at Ohta Nishinouchi Hospital between April 1, 2016 and January 31, 2022, using blood samples prospectively collected from infants admitted to the neonatal intensive care unit that were assessed by univariate analyses and multivariate logistic regression analysis. Due to a correlation between gestational age (GA) and birth weight (BW), each variable was entered separately into Model 1 (including GA) and 2 (including BW). RESULTS A total of 508 infants were analyzed (270 in the non EOH group and 238 in the EOH group). No infants experienced feto-maternal transfusion syndrome or hemolytic diseases such as blood type (ABO or Rh) incompatibility or glucose-6-phosphate dehydrogenase deficiency during perinatal period. Significant relationships were observed between EOH and BW (p <0.01, odds ratio [OR], 0.997; 95% confidence interval [CI], 0.996-0.997), albumin (p <0.01, OR, 0.278; 95% CI, 0.129-0.599), albumin/globulin ratio (p <0.01, OR, 2.695; 95% CI, 1.378-5.270), TSB (p <0.01, OR, 2.774; 95% CI, 1.795-4.287), and antenatal corticoid therapy (p = 0.02, OR, 1.852; 95% CI, 1.108-3.097) in Model 2. Per receiver operating characteristic curves, an albumin/globulin ratio of 1.84 could predict EOH at a sensitivity of 50.0% and specificity of 75.6% (AUC = 0.652, p <0.01, 95% CI, 0.603-0.700). CONCLUSION Albumin/globulin ratio among infants born weighing 1,000 to 2,499 g may be a useful indicator of EOH. KEY POINTS · Early-onset hyperbilirubinemia (EOH) is a clinical issue for premature infants.. · EOH management expected to be improved through the use of common laboratory tests.. · Albumin/globulin ratio among low birth weight infants may be a useful indicator of EOH..
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Affiliation(s)
- Takashi Imamura
- Department of Pediatrics, Ohta General Hospital Foundation Ohta Nishinouchi Hospital, Koriyama City, Fukushima, Japan
| | - Yuji Kanai
- Department of Pediatrics, Fukushima Medical University School of Medicine, Fukushima City, Fukushima, Japan
| | - Shuhei Yamaguchi
- Department of Pediatrics, Ohta General Hospital Foundation Ohta Nishinouchi Hospital, Koriyama City, Fukushima, Japan
| | - Yoshiyuki Namai
- Department of Pediatrics, Ohta General Hospital Foundation Ohta Nishinouchi Hospital, Koriyama City, Fukushima, Japan
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Villarreal-Martínez L, Torres-Sánchez KA, Ibarra-Ramírez M, Martínez-Garza LE, Villarreal-Martínez DZ, Viera DAG, Herrera MDCR, O-Castillo M, Bautista-Gómez AJ, Martínez AG, de la Garza JFM. Prevalence of Glucose-6-Phosphate Dehydrogenase Deficiency in Newborns in Northeast Mexico. Am J Perinatol 2024; 41:e573-e576. [PMID: 35977713 DOI: 10.1055/a-1926-0075] [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: 01/24/2023]
Abstract
OBJECTIVE Glucose-6-phosphate dehydrogenase deficiency (G6PDd) is the most common enzymatic disease worldwide and the prevalence is not well established because of the lack of screening. This study aimed to estimate the prevalence of G6PDd in a Hispanic population from Northeast Mexico. STUDY DESIGN In this retrospective study, a database was used to analyze the G6PDd in neonates included in the expanded newborn metabolic screening of inherited metabolic disorders during a period of 4 years through the GSP Neonatal G6 kit (PerkinElmer). RESULTS Among 96,152 (48,462 male) neonates screened for G6PD enzyme activity, a total of 566 (0.58%) cases were deficient for G6PD. Of those 566 patients, 469 (82.8%) attended the second test and the other 97 (17.2%) patients were lost. Of those 469 who did attend, 384 (81.9%) neonates were deficient in the second test and 85 (18.1%) were normal. With the data collected, 384 neonates were confirmed with G6PDd, 348 (88.6%) were male and 36 (11.4%) patients were female. The calculated prevalence for this population was 0.72 cases per 100 male newborns. CONCLUSION The prevalence of G6PDd in the Northeastern Mexican population is high. Since migration is increasing in the United States, pediatricians should be aware of the need to search for G6PDd in newborns and the wide clinical manifestations they can present. KEY POINTS · The calculated prevalence of glucose-6-phosphate dehydrogenase deficiency in Northeast Mexico is 3.99 cases per 1,000 newborns.. · Glucose-6-phosphate dehydrogenase deficiency screenings should be included in all newborn metabolic screenings.. · Glucose-6-phosphate dehydrogenase deficiency is a common erythroenzymopathy that must be addressed as a public health concern. To anticipate clinical complications, target population monitoring is required..
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Affiliation(s)
- Laura Villarreal-Martínez
- Hematology Department, Hospital Universitario ̈Dr. José Eleuterio González̈ Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, México
| | - Katia A Torres-Sánchez
- Hematology Department, Hospital Universitario ̈Dr. José Eleuterio González̈ Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, México
| | - Marisol Ibarra-Ramírez
- Genetics Department, Hospital Universitario ̈Dr. José Eleuterio González̈ Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, México
| | - Laura E Martínez-Garza
- Genetics Department, Hospital Universitario ̈Dr. José Eleuterio González̈ Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, México
| | - Daniel Z Villarreal-Martínez
- Hematology Department, Hospital Universitario ̈Dr. José Eleuterio González̈ Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, México
| | - Daniel A G Viera
- Hematology Department, Hospital Universitario ̈Dr. José Eleuterio González̈ Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, México
| | - María Del C R Herrera
- Genetics Department, Hospital Universitario ̈Dr. José Eleuterio González̈ Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, México
| | - Miguel O-Castillo
- Hematology Department, Hospital Universitario ̈Dr. José Eleuterio González̈ Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, México
| | - Andrea J Bautista-Gómez
- Hematology Department, Hospital Universitario ̈Dr. José Eleuterio González̈ Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, México
| | - Adrián G Martínez
- Hematology Department, Hospital Universitario ̈Dr. José Eleuterio González̈ Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, México
| | - Juan F M de la Garza
- Hematology Department, Hospital Universitario ̈Dr. José Eleuterio González̈ Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, México
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Nasief H, Alaifan MA, Tamur S, Khadawardi K, Bahauddin AA, Ahmed A, Ahmad S, Singh R, Alhussaini BH, Hassan A. Effectiveness of phototherapy with and without probiotics for the treatment of indirect hyperbilirubinaemia in preterm neonates: a randomised controlled trial. Paediatr Int Child Health 2024; 44:24-29. [PMID: 38482867 DOI: 10.1080/20469047.2024.2328416] [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] [Received: 10/09/2023] [Accepted: 03/05/2024] [Indexed: 04/12/2024]
Abstract
INTRODUCTION Raised serum bilirubin levels can cause kernicterus, and premature infants are at increased risk owing to metabolic immaturity. The standard treatment for neonatal jaundice is phototherapy, but probiotics alone can reduce the duration of phototherapy and hospitalisation. OBJECTIVES To determine the effectiveness of phototherapy with and without probiotics for the treatment of indirect hyperbilirubinaemia in preterm neonates. PATIENTS AND METHODS The open-labelled randomised controlled trial was conducted from January 2022 to January 2023 in the neonatal unit of the University of Lahore Teaching Hospital, Pakistan. A total of 76 preterm neonates who fulfilled the selection criteria were included and divided into two groups. Both groups received standard phototherapy. In Group B, a probiotic (Saccharomyces boulardii) 125 mg, twice daily, orally (in 5 cc of whichever milk the infant was receiving) was given until discharge from hospital. The primary outcome measurements were the duration of phototherapy and the length of hospitalisation. RESULTS The mean (SD) duration of phototherapy was 36.55 (14.25) hours in Group A and 24.61 (9.25) hours in Group B (p <0.05). The mean (SD) duration of hospital stay was 47.36 (16.51) hours in Group A and 33.13 (8.93) hours in Group B (p <0.05). CONCLUSION Oral probiotics (Saccharomyces boulardii) have a significant effect on the duration of phototherapy for neonatal hyperbilirubinaemia, and they decrease the chances of nosocomial infection. Exploration of clinical outcomes by investigating faecal flora and undertaking large randomised controlled trials of various probiotics are needed. ABBREVIATIONS ABE: acute bilirubin encephalopathy; CNS: central nervous system; GA: gestational age; IVIG: intravenous immunoglobulin; KSD: kernicterus; NNU: neonatal unit; RCT: randomised controlled trial; S. boulardii: Saccharomyces boulardii.
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Affiliation(s)
- Hisham Nasief
- Departments of Obstetrics and Gynecology and Pediatrics, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Meshari A Alaifan
- Department of Pediatrics, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Shadi Tamur
- Department of Pediatrics, College of Medicine, Taif University, Saudi Arabia
| | - Khalid Khadawardi
- Department of Obstetrics and Gynecology, Faculty of Medicine, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Ammar A Bahauddin
- Department of Pharmacology and Toxicology, College of Pharmacy, Taibah University, Madinah, Saudi Arabia
| | - Aijaz Ahmed
- National Institute of Child Health, Karachi, Pakistan
| | - Sarfraz Ahmad
- Departments of Paediatrics and Neonatology, Dr Sulaiman al Habib Hospital, Dubai, United Arab Emirates
| | - Rajinder Singh
- Departments of Paediatrics and Neonatology, Dr Sulaiman al Habib Hospital, Dubai, United Arab Emirates
| | - Bakr H Alhussaini
- Department of Pediatrics, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Amber Hassan
- Faculty of Allied Health Sciences, University of Lahore, Lahore, Pakistan
- System Medicine, Translational Neuroscience Laboratory, CEINGE Biotecnologie Avanzate, Naples, Italy
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Champion ML, Jauk VC, Biggio JR, Sychowski JM, Tita AT, Harper LM. Early Gestational Diabetes Screening Based on ACOG Guidelines. Am J Perinatol 2024; 41:e641-e647. [PMID: 35973791 DOI: 10.1055/a-1925-1134] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
OBJECTIVE A recent randomized controlled trial suggested that early gestational diabetes mellitus (GDM) screening in patients with obesity (body mass index [BMI] ≥30 kg/m2) does not improve perinatal outcomes. The American College of Obstetrics and Gynecology currently recommends early screening for gestational diabetes in patients who are overweight with one or more additional risk factors. We evaluated the effect of screening based on the number of additional risk factors for development of gestational diabetes. STUDY DESIGN This was a secondary analysis of a multicenter randomized controlled trial of obese patients with singleton nonanomalous fetuses comparing early (14-20 weeks' gestation) with routine (24-28 weeks' gestation) GDM screening. Exclusion criteria were pregestational diabetes, major medical illnesses, bariatric surgery, chronic steroid use, and prior cesarean. Early versus routine GDM screening groups were compared and stratified by the number of additional risk factors for GDM (0, 1, 2, and ≥3). The primary outcome was an adverse perinatal composite outcome composed of: macrosomia, primary cesarean delivery, hypertensive disorders of pregnancy, shoulder dystocia, neonatal hyperbilirubinemia, and neonatal hypoglycemia. Analyses examined effects of early versus routine screening by the number of additional risk factors and their possible interaction on the incidences of the primary outcome and GDM. RESULTS Of 913 patients, 5% had 0, 52% had 1, 33% had 2, and 10% had ≥3 additional risk factors. Baseline characteristics, including the number and type of risk factors, were similar between early and routine screening groups. Breslow-Day test for interaction between early versus routine screening and the number of additional risk factors was not significant for either the primary outcome (p = 0.37) or the diagnosis of GDM (p = 0.28). The incidence of GDM and the adverse perinatal composite outcome increased as the number of risk factors increased (p < 0.001). CONCLUSION In patients with BMI ≥30 kg/m2 and additional risk factors, early GDM screening does not prevent adverse outcomes. KEY POINTS · The ACOG currently recommends early screening for gestational diabetes if patients have risk factors.. · Even in patients with multiple risk factors, early screening for GDM does not improve outcomes.. · Patients with three or more risk factors may have worse outcomes if they undergo early screening..
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Affiliation(s)
- Macie L Champion
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Center for Women's Reproductive Health, The University of Alabama at Birmingham, Birmingham, Alabama
| | - Victoria C Jauk
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Center for Women's Reproductive Health, The University of Alabama at Birmingham, Birmingham, Alabama
| | - Joseph R Biggio
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Ochsner Health System, New Orleans, Louisiana
| | - Jeff M Sychowski
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Center for Women's Reproductive Health, The University of Alabama at Birmingham, Birmingham, Alabama
- Department of Biostatistics, The University of Alabama at Birmingham, Birmingham, Alabama
| | - Alan T Tita
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Center for Women's Reproductive Health, The University of Alabama at Birmingham, Birmingham, Alabama
| | - Lorie M Harper
- Department of Women's Health, The University of Texas at Austin Dell Medical School, Austin, Texas
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Cheraghi M, Nikouei M, Mansouri M, Hemmatpour S, Moradi Y. Effect of vitamin E supplementation on bilirubin levels in infants with hyperbilirubinemia: a double-blind randomized clinical trial. Clin Exp Pediatr 2024; 67:249-256. [PMID: 38549357 PMCID: PMC11065639 DOI: 10.3345/cep.2023.01312] [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: 09/20/2023] [Revised: 12/09/2023] [Accepted: 02/01/2024] [Indexed: 05/04/2024] Open
Abstract
BACKGROUND The effect of vitamin E supplementation on bilirubin levels in infants was previously explored, but the results were inconclusive. PURPOSE To examine the effect of vitamin E supplementation on bilirubin levels in term infants in the neonatal intensive care unit (NICU). METHODS This interventional double-blind randomized clinical trial was conducted in the Sanandaj Besat Hospital NICU. Enrolled newborns were between 37 and 42 weeks and 6 days of gestation and required phototherapy according to American Academy of Pediatrics clinical guidelines. A total of 138 infants were randomly assigned to vitamin E (n=68) or placebo (n=70) groups. In addition to phototherapy, the vitamin E group received 0.5 mL (5 IU) of supplemental vitamin E daily, whereas the placebo group received 0.5 mL of oral dextrose daily. STATA 17 was used for the data analysis. RESULTS Changes in bilirubin levels at 24 hours postintervention did not differ significantly from baseline in either group. Vitamin E supplementation did not significantly reduce total bilirubin levels at 24 hours postintervention (mean difference [MD], -0.18; P=0.204; 95% confidence interval [CI], -1.39 to 1.02). However, the vitamin E group exhibited lower total bilirubin levels than the placebo group at 48 hours postintervention (MD, 0.18; P=0.365; 95% CI, -0.89 to 1.27) and 72 hours (MD, 0.36; P=0.356; 95% CI, -2.34 to 1.61), although the differences were not statistically significant. A subgroup analysis revealed that female infants experienced a greater reduction in total bilirubin levels than male infants. CONCLUSION Infants administered vitamin E versus placebo demonstrated similar reductions in bilirubin levels and hospital stays. Although the average bilirubin changes did not differ significantly between groups, the vitamin E group showed a more noticeable reduction over time, indicating a positive effect of vitamin E supplementation on serum bilirubin reduction. Trial registration: IRCT20220806055625N2 (registered December 26, 2022; http://irct.ir/trial/67135).
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Affiliation(s)
- Mojtaba Cheraghi
- Student Research Committee, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Maziar Nikouei
- Student Research Committee, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Majid Mansouri
- Department of Pediatric, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Siros Hemmatpour
- Department of Pediatrics, Faculty of Medicine, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Yousef Moradi
- Social Determinants of Health Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran
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Paopongsawan P, Kiatchoosakun P, Jirapradittha J, Chopchoen M. Prevalence of Glucose-6-Phosphate Dehydrogenase Deficiency in Male Newborn Infants and Its Relationship with Neonatal Jaundice in Thailand. Am J Perinatol 2024; 41:e1631-e1638. [PMID: 37068513 DOI: 10.1055/s-0043-1768234] [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: 04/19/2023]
Abstract
OBJECTIVE The study aimed to explore the prevalence of glucose-6-phosphate dehydrogenase (G-6-PD) deficiency among male newborn infants in northeastern Thailand and its relationship with neonatal jaundice (NJ). STUDY DESIGN This prospective cohort study included male newborn infants with gestational age (GA) ≥35 weeks born between July 1, 2019, and March 1, 2021. Cord blood was sent for G-6-PD fluorescent spot test (FST) and results were reported as normal, partial, or complete deficiency. Infants with NJ would have blood tested for total serum bilirubin (TSB) level and other possible causes of NJ. Duration of phototherapy, length of hospital stays, and complications were documented. RESULTS There were 922 male infants included in this study with 854 (93.1%) term and 63 (6.9%) preterm infants. FST showed 132 infants (14.4%) had G-6-PD deficiency. Incidence of NJ was significantly higher among infants with G-6-PD deficiency compared with infants with normal G-6-PD level (47.7 vs. 25.8%; relative risk [RR]: 2.62, 95% confidence interval [CI]: 1.79-3.82; p < 0.001). Regardless of G-6-PD level, preterm infants had significantly higher incidence of NJ than term infants (52.4 vs. 27.3%; RR: 2.93, 95% CI: 1.75-4.92; p < 0.001). Duration of phototherapy was significantly longer in infants with G-6-PD deficiency with NJ but hospital stays were similar. Infants with combined G-6-PD deficiency and other causes of hemolysis did not have higher TSB level than infants with isolated G-6-PD deficiency. Risk factors associated with NJ were G-6-PD deficiency and preterm infants, whereas more advance GA was associated with reduced risk for NJ. CONCLUSION G-6-PD deficiency and preterm infants were important risk factors for NJ. Routine G-6-PD screening, close monitoring for signs of NJ in infant with risks, and appropriate parental counseling should be implemented. KEY POINTS · G-6-PD deficiency increases risk of neonatal jaundice.. · Preterm infants have higher risk for neonatal jaundice.. · G-6-PD deficiency does not link with severe jaundice..
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Affiliation(s)
| | - Pakaphan Kiatchoosakun
- Department of Pediatrics, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Junya Jirapradittha
- Department of Pediatrics, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Mukrawee Chopchoen
- Department of Pediatrics, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
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15
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García Vázquez J, González Vilaplana P, Portolés Morales M, Escrig Fernández R. Modification of the management of neonatal hyperbilirubinemia: changes towards improving the quality of care. An Pediatr (Barc) 2024; 100:378-379. [PMID: 38677886 DOI: 10.1016/j.anpede.2024.04.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Accepted: 02/24/2024] [Indexed: 04/29/2024] Open
Affiliation(s)
- Jesús García Vázquez
- Servicio de Pediatría, Hospital Universitario y Politécnico la Fe, Valenia, Spain
| | | | | | - Raquel Escrig Fernández
- Sección de Maternidad, Servicio de Neonatología, Hospital Univesitario y Politécnico la Fe, Valencia, Spain
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Tang TH, Guo CY, Li XY, Hu YX, Liu WK, Yu MX. Effect of Anti-D titers in RhD-negative pregnant women on fetuses and newborns: A retrospective study. Pediatr Neonatol 2024; 65:288-292. [PMID: 37957047 DOI: 10.1016/j.pedneo.2023.03.015] [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] [Received: 01/25/2022] [Revised: 08/27/2022] [Accepted: 03/28/2023] [Indexed: 11/15/2023] Open
Abstract
BACKGROUND Transplacental-derived anti-D IgG in RhD-negative pregnant women can trigger an immune response to Rh D-positive red cells in fetuses and newborns. We assessed the effect of anti-D titers in RhD-negative pregnant women on fetuses and newborns. METHODS The clinical data of 142 singleton RhD-sensitized pregnancies were retrospectively collected. The pregnant women received routine prenatal care and the newborns had standard care. Based on the tertile categories of the pregnancies, the maximum titers of anti-D IgG in the pregnant women were divided into three groups ranging from low to high as follows: low-titer group (anti-D titer: 1:4-1:128, n = 57); medium-titer group (anti-D titer: 1:256-1:512, n = 50); and high-titer group (anti-D titer: 1:1024-1:4096, n = 35). RESULTS The frequencies of major neonatal complications did not significantly differ among the three groups. The high-titer group had the highest frequency of pregnancies requiring intrauterine transfusion (IUT) and number of IUTs among the three groups. The high-titer group had a significantly higher frequency of newborns treated with top-up transfusion, number of top-up transfusions, frequency of newborns treated with exchange transfusion (ET), and number of ETs when compared to the low-titer group. CONCLUSION Higher anti-D titers in RhD-negative pregnant women predict more severe fetal and neonatal hemolytic anemia. Increasing maternal anti-D titers results in an increased need for IUTs, and neonatal top-up transfusions and ETs. Methods for reducing titers of anti-D IgG in RhD-sensitized pregnant women warrants further investigation.
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Affiliation(s)
- Tong-Hui Tang
- Department of Pediatrics, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510080, China
| | - Chu-Yi Guo
- Department of Pediatrics, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510080, China
| | - Xiao-Yu Li
- Department of Pediatrics, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510080, China
| | - Yi-Xin Hu
- Department of Pediatrics, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510080, China
| | - Wang-Kai Liu
- Department of Pediatrics, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510080, China.
| | - Mu-Xue Yu
- Department of Pediatrics, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510080, China.
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Morimoto D, Washio Y, Fukuda K, Sato T, Okamura T, Watanabe H, Yoshimoto J, Tanioka M, Tsukahara H. Machine Learning to Improve Accuracy of Transcutaneous Bilirubinometry. Neonatology 2024:1-8. [PMID: 38684146 DOI: 10.1159/000535970] [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: 06/20/2023] [Accepted: 12/15/2023] [Indexed: 05/02/2024]
Abstract
INTRODUCTION This study aimed to develop models for predicting total serum bilirubin by correcting errors of transcutaneous bilirubin using machine learning based on neonatal biomarkers that could affect spectrophotometric measurements of tissue bilirubin. METHODS This retrospective study included infants born at our hospital (≥36 weeks old, ≥2,000 g) between January 2020 and December 2022. Infants without a phototherapy history were included. Robust linear regression, gradient boosting tree, and neural networks were used for machine learning models. A neural network, inspired by the structure of the human brain, was designed comprising three layers: input, intermediate, and output. RESULTS Totally, 683 infants were included. The mean (minimum-maximum) gestational age, birth weight, participant age, total serum bilirubin, and transcutaneous bilirubin were 39.0 (36.0-42.0) weeks, 3,004 (2,004-4,484) g, 2.8 (1-6) days of age, 8.50 (2.67-18.12) mg/dL, and 7.8 (1.1-18.1) mg/dL, respectively. The neural network model had a root mean square error of 1.03 mg/dL and a mean absolute error of 0.80 mg/dL in cross-validation data. These values were 0.37 mg/dL and 0.28 mg/dL, smaller compared to transcutaneous bilirubin, respectively. The 95% limit of agreement between the neural network estimation and total serum bilirubin was -2.01 to 2.01 mg/dL. Unnecessary blood draws could be reduced by up to 78%. CONCLUSION Using machine learning with transcutaneous bilirubin, total serum bilirubin estimation error was reduced by 25%. This integration could increase accuracy, lessen infant discomfort, and simplify procedures, offering a smart alternative to blood draws by accurately estimating phototherapy thresholds.
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Affiliation(s)
- Daisaku Morimoto
- Department of Pediatrics, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan,
| | - Yosuke Washio
- Department of Pediatrics, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Kana Fukuda
- Department of Pediatrics, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Takeshi Sato
- Department of Pediatrics, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Tomoka Okamura
- Department of Pediatrics, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Hirokazu Watanabe
- Department of Pediatrics, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Junko Yoshimoto
- Department of Pediatrics, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Maki Tanioka
- Clinical AI Human Resources Development Program, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Hirokazu Tsukahara
- Department of Pediatrics, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
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Chou HH, Huang LC, Shen SP, Tsai ML, Chang YC, Lin HC. Neonatal jaundice is associated with increased risks of congenital anomalies of the kidney and urinary tract and concomitant urinary tract infection. Sci Rep 2024; 14:9520. [PMID: 38664452 PMCID: PMC11045864 DOI: 10.1038/s41598-024-59943-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Accepted: 04/17/2024] [Indexed: 04/28/2024] Open
Abstract
The link between neonatal jaundice and urinary tract infection (UTI) remains debated, with congenital kidney and urinary tract anomalies (CAKUT) potentially playing a role. This population-based study aimed to analyze the correlations between neonatal jaundice, CAKUT, and concomitant UTI. The study cohort consisted of 2,078,122 live births from 2004 to 2014. We linked several population-based datasets in Taiwan to identify infants with unexplained neonatal jaundice and their mothers. The primary outcome was the rate of CAKUT occurring within 3 years after delivery, and the presence of concomitant UTI during neonatal jaundice hospitalization. Infants with neonatal jaundice had a significantly higher risk of CAKUT (adjusted odds ratio [aOR] 1.24, 95% confidence interval [CI] 1.11-1.39) during early childhood. Among the subtypes of CAKUT, obstructive uropathy, vesicoureteral reflux and other CAKUT were associated with an increased risk of neonatal jaundice. Infants who underwent intensive phototherapy, had a late diagnosis (> 14 days of postnatal age) or underwent a prolonged duration of phototherapy (> 3 days) exhibited a higher risk of concomitant UTI compared to other infants with jaundice. Our findings indicate a notable association between neonatal jaundice and increased risks of UTIs in the context of CAKUT. This study underscore the importance of vigilant monitoring and timely interventions for neonates presenting with jaundice, while acknowledging the complexity and variability in the progression of CAKUT and its potential connection to UTIs.
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Affiliation(s)
- Hsin-Hsu Chou
- Department of Pediatrics, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chiayi, Taiwan
- Department of Bioinformatics and Medical Engineering, Asia University, Taichung, Taiwan
| | - Lin-Chih Huang
- Department of Pediatrics, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chiayi, Taiwan
| | - Shang-Po Shen
- Division of Neonatology, China Medical University Children's Hospital, China Medical University, No. 2 Yuh Der Road, Taichung, 404, Taiwan
| | - Ming-Luen Tsai
- Division of Neonatology, China Medical University Children's Hospital, China Medical University, No. 2 Yuh Der Road, Taichung, 404, Taiwan
| | - Yu-Chia Chang
- Department of Healthcare Administration, College of Medical and Health Science, Asia University, No. 500, Lioufeng Road., Wufeng, Taichung, 41354, Taiwan.
- Department of Long-Term Care, College of Health and Nursing, National Quemoy University, Kinmen County, Taiwan.
| | - Hung-Chi Lin
- Division of Neonatology, China Medical University Children's Hospital, China Medical University, No. 2 Yuh Der Road, Taichung, 404, Taiwan.
- School of Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung, Taiwan.
- Asia University Hospital, Asia University, Taichung, Taiwan.
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Amin SB. Exchange Transfusions in Late Preterm and Term Neonates with Acute Bilirubin Encephalopathy. J Pediatr 2024:114074. [PMID: 38677628 DOI: 10.1016/j.jpeds.2024.114074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Accepted: 04/21/2024] [Indexed: 04/29/2024]
Affiliation(s)
- Sanjiv B Amin
- Department of Pediatrics, Children's Hospital of Michigan, Central Michigan University, Mount Pleasant, MI; Department of Pediatrics, Sir Ganga Ram Hospital, Delhi, India
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20
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Sarathy L, Chou JH, Romano-Clarke G, Darci KA, Lerou PH. Bilirubin Measurement and Phototherapy Use After the AAP 2022 Newborn Hyperbilirubinemia Guideline. Pediatrics 2024; 153:e2023063323. [PMID: 38482582 DOI: 10.1542/peds.2023-063323] [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] [Accepted: 12/20/2023] [Indexed: 04/02/2024] Open
Abstract
BACKGROUND AND OBJECTIVES Guidelines for the management of neonatal hyperbilirubinemia have helped to reduce rates of significant hyperbilirubinemia. However, recent evidence suggesting overtreatment and potential harms of phototherapy have informed the American Academy of Pediatrics clinical practice guideline revision and the accompanying increase in phototherapy thresholds. These changes are predicted to safely reduce overuse; however, to date, the exact effect of these guidelines has not been established. METHODS We conducted a retrospective study of newborns born at ≥35 weeks' gestation across a network of 8 hospitals between January 2022 and June 2023. Outcomes included rates of phototherapy and total serum bilirubin (TSB) measurements before and after guideline publication, as well as clinical outcomes, including length of stay, readmissions, and duration of phototherapy. RESULTS In our cohort of >22 000 newborns, we observed a 47% decrease in phototherapy utilization, from 3.9% to 2.1% (P < .001). TSB measurements were reduced by 23%, from 712 to 551 measurements per 1000 newborns (P < .001), without an increase in outpatient TSB measurements. We did not observe an increase in readmissions receiving phototherapy, and length of stay increased by only 1 hour (P < .001). CONCLUSIONS Our study reveals that the publication of the updated American Academy of Pediatrics 2022 hyperbilirubinemia guidelines has likely yielded a significant reduction in phototherapy use and serum bilirubin measurement. Dedicated quality improvement initiatives may help determine which implementation strategies are most effective. Further population-level studies are needed to confirm safety with ongoing guideline uptake.
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Affiliation(s)
- Leela Sarathy
- Mass General for Children, Boston, Massachusetts; and Harvard Medical School, Boston, Massachusetts
| | - Joseph H Chou
- Mass General for Children, Boston, Massachusetts; and Harvard Medical School, Boston, Massachusetts
| | - Giuseppina Romano-Clarke
- Mass General for Children, Boston, Massachusetts; and Harvard Medical School, Boston, Massachusetts
| | - Katherine A Darci
- Mass General for Children, Boston, Massachusetts; and Harvard Medical School, Boston, Massachusetts
| | - Paul H Lerou
- Mass General for Children, Boston, Massachusetts; and Harvard Medical School, Boston, Massachusetts
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21
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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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Affiliation(s)
- Vinod K Bhutani
- Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine, Stanford, CA, USA.
| | - Ramesh Vidavalur
- Department of Neonatology, Cayuga Medical Center of Ithaca, Ithaca, NY, USA
- Weill Cornell Medicine, New York, NY, USA
| | - Ronald J Wong
- Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine, Stanford, CA, USA
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Vallamkonda N, Bandyopadhyay T, Maria A. A Study of General Movement Assessment and Its Association With Neurodevelopmental Outcome at Age 12 to 15 Months Among Term Neonates With Hyperbilirubinemia. Pediatr Neurol 2024; 153:77-83. [PMID: 38341950 DOI: 10.1016/j.pediatrneurol.2023.12.030] [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] [Received: 02/11/2023] [Revised: 09/12/2023] [Accepted: 12/31/2023] [Indexed: 02/13/2024]
Abstract
BACKGROUND To determine the association between optimality score at term age and age three to five months and neurodevelopmental outcome among neonates with hyperbilirubinemia. METHODS Fifty infants with and without hyperbilirubinemia were enrolled. The motor repertoires of the infants were evaluated through general movement assessment (GMA) at term age and three to five months post-term. The association between the General Movement Optimality Score (GMOS), Motor Optimality Score (MOS), and Development Assessment Scale for Indian Infants (DASII) at age 12 to 15 months was also assessed. RESULTS During term age, the median GMOS was significantly lower among infants in the study group when compared with the control group (40 [29 to 42] vs 42 [42 to 42], P < 0.001). However, at age three to five months, there was no significant difference between the groups. Significantly higher number of neonates had abnormal motor repertoire at term age and age three to five months in the study group when compared with the control group (18 [36%] vs 2 [4%], P = 0.001, at term age and 6 [12.2%] vs 1 [2%], P =0.04, at age three to five months). Among neonates with hyperbilirubinemia, the median GMOS and MOS were significantly lower at term age and age three to five months in infants with motor and mental developmental quotient scores <85 when compared with ≥85. CONCLUSIONS GMA including GMOS and MOS performed in neonates with hyperbilirubinemia during the neonatal period and early infancy is associated with neurodevelopmental outcomes in the first year of life. GMA can help initiate early intervention in such neonates.
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Affiliation(s)
- Nagaratna Vallamkonda
- Early Interventionist, Department of Neonatology, ABVIMS & Dr. RML Hospital, New Delhi, New Delhi, India
| | - Tapas Bandyopadhyay
- Associate Professor, Department of Neonatology, ABVIMS & Dr. RML Hospital, New Delhi, New Delhi, India
| | - Arti Maria
- Professor, Department of Neonatology, ABVIMS & Dr. RML Hospital, New Delhi, New Delhi, India.
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Yilmaz Yegit C, Yasa B, Ince EZ, Sarac Sivrikoz T, Coban A. An ongoing problem: Rhesus hemolytic disease of the newborn - A decade of experience in a single centre. Pediatr Neonatol 2024:S1875-9572(24)00022-6. [PMID: 38490905 DOI: 10.1016/j.pedneo.2024.02.004] [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: 08/17/2023] [Revised: 01/26/2024] [Accepted: 02/16/2024] [Indexed: 03/17/2024] Open
Abstract
BACKGROUND The objectives were to evaluate the descriptive features of newborns with a diagnosis of Rhesus (Rh) hemolytic disease, to determine the morbidity and mortality rates, to evaluate the treatment methods and the factors affecting treatment requirements and clinical outcomes during a ten-year period at a tertiary center. METHODS Newborn infants who had a positive direct Coombs test and/or had a history of intrauterine transfusion (IUT) due to Rh hemolytic disease were included. The data regarding the prenatal, natal and postnatal periods were collected from hospital records. RESULTS A total of 260 neonates were included of which 51.2% were female. The mean ± standard deviation gestational age was 36.9 ± 2.7 weeks. The rate of preterm birth was 41.2%. Of 257 mothers whose obstetric medical history could be accessed, 87.2% were multigravida, whereas 76.3% were multiparous. Among mothers who had a reliable history of anti-D immunoglobulin prophylaxis (n=191), 51.3% had not received anti-D immunoglobulin prophylaxis in their previous pregnancies. The antenatal transfusion rate was 31.7% and the frequency of hydrops fetalis was 8.8%. While combined exchange transfusion (ET) and phototherapy (PT) was performed in 15.4% of the babies, the majority either needed phototherapy only (51.1%) or no treatment (33.5%). The mortality rate was 3.8 % (n = 10), and nine babies out of these 10 were those with severe hydrops fetalis. CONCLUSION This study showed that Rh hemolytic disease is still a major problem in developing countries. Multiple comorbidities may occur in addition to life threatening complications, including hydrops fetalis, anemia and severe hyperbilirubinemia. High rates of multiparity and low rates of anti-D immunoglobulin prophylaxis are potential barriers for the eradication of the disease. It should be remembered that Rh hemolytic disease is a preventable disease in the presence of appropriate antenatal follow-up and care facilities.
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Affiliation(s)
- Cansu Yilmaz Yegit
- Department of Pediatrics, Istanbul University Faculty of Medicine, Istanbul, Turkey.
| | - Beril Yasa
- Department of Pediatrics, Division of Neonatology, Istanbul University Faculty of Medicine, Istanbul, Turkey
| | - Elmas Zeynep Ince
- Department of Pediatrics, Division of Neonatology, Istanbul University Faculty of Medicine, Istanbul, Turkey
| | - Tugba Sarac Sivrikoz
- Department of Obstetrics and Gynecology, Division of Perinatology, Istanbul University Faculty of Medicine, Istanbul, Turkey
| | - Asuman Coban
- Department of Pediatrics, Division of Neonatology, Istanbul University Faculty of Medicine, Istanbul, Turkey
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24
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Li R, Li T, Yan X, Feng J, Yu Z, Chen C. Efficacy of home phototherapy versus inpatient phototherapy for neonatal hyperbilirubinemia: a systematic review and meta-analysis. Ital J Pediatr 2024; 50:37. [PMID: 38433210 PMCID: PMC10910825 DOI: 10.1186/s13052-024-01613-0] [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] [Received: 09/28/2023] [Accepted: 02/24/2024] [Indexed: 03/05/2024] Open
Abstract
BACKGROUND Home phototherapy (HPT) remains a contentious alternative to inpatient phototherapy (IPT) for neonatal hyperbilirubinemia. To guide evidence-based clinical decision-making, we conducted a meta-analysis of randomized clinical trials (RCTs) and cohort studies and assessed the comparative risks and benefits of HPT and IPT. METHODS PubMed, Embase, Web of Science, Cochrane Library, Chinese National Knowledge Infrastructure Database, Wanfang Database, Chinese Science and Technique Journals Database, ClinicalTrials.gov, and International Clinical Trial Registry Platform trial were searched from inception until June 2, 2023. We included RCTs and cohort studies and adhered to Preferred Reporting Items for Systematic Reviews and Meta-Analysis guidelines. Study quality was assessed with the Cochrane Collaboration Risk of Bias tool and the Newcastle-Ottawa scale. The outcome measures were phototherapy duration, daily bilirubin level reduction, exchange transfusion, hospital readmission, parental stress scale, and complications. We used fixed- or random-effects meta-analysis models, assessed heterogeneity (I2), conducted subgroup analyses, evaluated publication bias, and graded evidence quality. RESULTS Nine studies (998 patients) were included (four RCTs, five cohort studies). HPT was associated with longer phototherapy duration (SMD = 0.55, 95% CI: 0.06-1.04, P = 0.03). Cohort study subgroup analysis yielded consistent results (SMD = 0.90; 95% CI: 0.69 to 1.11, P < 0.001, I2 = 39%); the RCTs were not significantly different (SMD = -0.04; 95% CI: -0.15 to 0.08, P = 0.54, I2 = 0%). Hospital readmission was higher with HPT (RR = 4.61; 95% CI: 1.43-14.86, P = 0.01). Daily bilirubin reduction (WMD = -0.12, 95% CI: -0.68 to 0.44, P = 0.68) or complications were not significantly different (RR = 2.29; 95% CI: 0.31-16.60, P = 0.41). The evidence quality was very low. HPT was associated with lower parental stress (SMD = -0.44, 95% CI: -0.71 to -0.16, P = 0.002). None of three included studies reported exchange transfusion. CONCLUSIONS The current evidence does not strongly support HPT efficacy for neonatal hyperbilirubinemia, as high-quality data on long-term outcomes are scarce. Future research should prioritize well-designed, large-scale, high-quality RCTs to comprehensively assess HPT risks and benefits.
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Affiliation(s)
- Rui Li
- Division of Neonatology, Longgang District Maternity & Child Healthcare Hospital of Shenzhen City (Longgang Maternity and Child Institute of Shantou University Medical College), Shenzhen, China
| | - Tingting Li
- Division of Neonatology, Longgang District Maternity & Child Healthcare Hospital of Shenzhen City (Longgang Maternity and Child Institute of Shantou University Medical College), Shenzhen, China
| | - Xudong Yan
- Department of Pediatrics Division of Neonatology, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, China
| | - Jing Feng
- Division of Neonatology, Longgang District Maternity & Child Healthcare Hospital of Shenzhen City (Longgang Maternity and Child Institute of Shantou University Medical College), Shenzhen, China
| | - Zhangbin Yu
- Department of Pediatrics Division of Neonatology, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, China.
| | - Cheng Chen
- Division of Neonatology, Longgang District Maternity & Child Healthcare Hospital of Shenzhen City (Longgang Maternity and Child Institute of Shantou University Medical College), Shenzhen, China.
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Elmazzahy EA, El Din ZE, Nessem MA, El Tatawy S. Neurodevelopmental outcome at 6 months of age of full-term neonates with hyperbilirubinemia necessitating exchange transfusion. Early Hum Dev 2024; 190:105969. [PMID: 38341995 DOI: 10.1016/j.earlhumdev.2024.105969] [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] [Received: 11/08/2023] [Revised: 02/06/2024] [Accepted: 02/06/2024] [Indexed: 02/13/2024]
Abstract
BACKGROUND Bilirubin neurotoxicity involves a spectrum of varying severity that could result in adverse long-term sequelae. AIMS To compare the neurodevelopmental outcome of full-term neonates who underwent exchange transfusion with those who did not. STUDY DESIGN A retrospective cohort study. SUBJECTS This study included a retrospective review of records of sixty neonates who were matched in admission ages and serum bilirubin levels and the comparison groups were those who received an exchange transfusion (n = 30) versus those where exchange transfusion was planned, but the bilirubin levels dropped sufficiently during the period where the exchange blood was being prepared (n = 30). History, clinical examination, and laboratory investigations were documented. OUTCOME MEASURES Neurodevelopmental outcome, at 6 months of age, using Bayley scales of infant development was assessed. RESULTS The exchange group had statistically significant lower cognitive scores (p-value 0.005). The higher the rate of bilirubin decline, the better the language and motor scores in the phototherapy group (p-values 0.020 and 0.024 respectively). Infants with longer duration to exchange transfusion had lower cognitive, language, and motor scores (p-values 0.01, 0.001, and 0.003 respectively). CONCLUSIONS Slower rates of bilirubin decline and longer duration before intervention increase the chances of adverse neurodevelopmental outcomes.
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Affiliation(s)
| | - Zahraa Ezz El Din
- Department of Pediatrics, Cairo University Children's Hospital, Cairo, Egypt
| | - Marina Atef Nessem
- Department of Pediatrics, Cairo University Children's Hospital, Cairo, Egypt
| | - Sarah El Tatawy
- Department of Pediatrics, Cairo University Children's Hospital, Cairo, Egypt
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26
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Ercin S, Coskun Y, Kayas K, Kavas N, Gursoy T. Positive Direct Antiglobulin Test: Is It a Risk Factor for Significant Hyperbilirubinemia in Neonates with ABO Incompatibility? Am J Perinatol 2024; 41:505-510. [PMID: 34847590 DOI: 10.1055/a-1709-5036] [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: 10/19/2022]
Abstract
OBJECTIVE ABO blood group (ABO) incompatibility is a common cause of neonatal indirect hyperbilirubinemia. The direct antiglobulin test (DAT) can identify infants developing hemolytic disease. This study aims to evaluate the significance of DAT positivity among neonates with ABO incompatibility. STUDY DESIGN This retrospective study included 820 neonates with blood group A or B who were born to blood group O mothers. The study group consisted of neonates (n = 79) who had positive DAT, and the control group consisted of infants (n = 741) who had negative DAT. Demographic and clinical data of the neonates regarding jaundice were collected and compared statistically. RESULTS The bilirubin level at 24 hours of life (study group: 8 ± 2.6 mg/dL, control group: 6 ± 2.2 mg/dL, p < 0.001) and the highest bilirubin level (study group: 12.7 ± 3.6 mg/dL, control group: 10.4 ± 4.2 mg/dL, p < 0.001) were higher in infants with positive DAT. A total of 37 (46.8%) infants in the study group and 83 (11.2%) infants in the control group received phototherapy (PT) in the nursery (p < 0.001). In neonates with positive DAT, direct bilirubin level, duration of hospitalization, and PT in the nursery were higher (p = 0.002, <0.001, and <0.001, respectively), whereas hemoglobin level was lower (p < 0.001). CONCLUSION In neonates with ABO incompatibility, a positive DAT is a risk factor for developing significant hyperbilirubinemia. Close follow-up of newborn infants with ABO incompatibility is crucial for early detection and treatment of neonatal jaundice to avoid early and late complications. KEY POINTS · The clinical spectrum of ABO incompatibility varies widely.. · The ABO incompatibility with positive DAT are at greater risk for high bilirubin levels.. · Infants with blood group incompatibilities must be monitored closely..
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Affiliation(s)
- Secil Ercin
- Division of Neonatology, Department of Pediatrics, Koc University Hospital, Istanbul, Turkey
| | - Yesim Coskun
- Department of Pediatrics, Koc University Hospital, Istanbul, Turkey
| | - Kalender Kayas
- Department of Pediatrics, Koc University Hospital, Istanbul, Turkey
| | - Nazan Kavas
- Division of Neonatology, Department of Pediatrics, Koc University Hospital, Istanbul, Turkey
| | - Tugba Gursoy
- Division of Neonatology, Department of Pediatrics, Koc University School of Medicine, Istanbul, Turkey
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27
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Amin SB, Saluja S, Kler N. Unbound Bilirubin and Acute Bilirubin Encephalopathy in Infants Born Late Preterm and Term with Significant Hyperbilirubinemia. J Pediatr 2024; 266:113880. [PMID: 38135027 DOI: 10.1016/j.jpeds.2023.113880] [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] [Received: 07/31/2023] [Revised: 11/30/2023] [Accepted: 12/17/2023] [Indexed: 12/24/2023]
Abstract
OBJECTIVE To compare the association of unbound bilirubin (UB), total serum bilirubin (TSB), and bilirubin:albumin molar ratio (BAMR) with acute bilirubin encephalopathy (ABE), as assessed by bilirubin-induced neurologic dysfunction (BIND) score, in infants with significant hyperbilirubinemia (TSB ≥20 mg/dL or underwent exchange transfusion). STUDY DESIGN In this prospective cohort study, infants ≥34 weeks of gestational age with significant hyperbilirubinemia during the first 2 postnatal weeks were eligible, unless they had craniofacial malformations, chromosomal disorders, TORCH (toxoplasmosis, other infections, rubella, cytomegalovirus and herpes simplex) infections, surgery, or a family history of congenital deafness. TSB, serum albumin, and UB were measured at hospital admission using the colorimetric, bromocresol green, and modified peroxidase method, respectively. Infants were evaluated on admission for ABE using a standardized neurologic examination and assigned a BIND score by trained physicians. Infants with a total BIND score of 0 were deemed to not have ABE, whereas those with a score ≥1 were deemed to have ABE. RESULTS A total of 151 infants were studied, among whom 37 (24.5%) had ABE. Of these, 19 had mild ABE (BIND score 1-3) and 18 had moderate-to-severe ABE (BIND score 4-9). On logistic regression, UB, but not TSB or BAMR, was associated with ABE (aOR 1.64; 95% CI 1.17-2.3). On ordered logistic regression, UB, but not TSB or BAMR, was associated with severity of ABE (aOR 1.76; 95% CI 1.28-2.4). CONCLUSIONS Our findings of the association between UB and ABE indicate that BIND scoring may be useful for evaluation of ABE in infants ≥34 weeks of gestational age.
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Affiliation(s)
- Sanjiv B Amin
- Department of Pediatrics, Central Michigan University, Mount Pleasant, MI; Department of Pediatrics, Sir Ganga Ram Hospital, Delhi, India.
| | - Satish Saluja
- Department of Pediatrics, Sir Ganga Ram Hospital, Delhi, India
| | - Neelam Kler
- Department of Pediatrics, Sir Ganga Ram Hospital, Delhi, India
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28
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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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29
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Drozdowska-Szymczak A, Proczka J, Mazanowska N, Ludwin A, Krajewski P. Severe Cholestasis in Neonates with Hemolytic Disease of the Fetus and Newborn-A Case Report. J Clin Med 2024; 13:1272. [PMID: 38592131 PMCID: PMC10932254 DOI: 10.3390/jcm13051272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 02/14/2024] [Accepted: 02/20/2024] [Indexed: 04/10/2024] Open
Abstract
Hemolytic disease of the fetus and newborn (HDFN) may cause severe cholestasis with direct bilirubin concentrations reaching up to 50 times the upper limit of normal. This case report describes twins whose highest direct bilirubin concentrations were 32.2 mg/dL and 50.2 mg/dL, with no significant signs of hepatic impairment. The index pregnancy was complicated by Rhesus factor immunization with anti-D antibodies present in maternal serum, which caused fetal anemia requiring intrauterine blood transfusions. Complementary tests demonstrated Rhesus D alloimmunization as the sole cause of cholestasis. To the best of our knowledge, this is the first study to describe such elevated direct bilirubin concentrations caused by HDFN.
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Affiliation(s)
- Agnieszka Drozdowska-Szymczak
- Department of Neonatology and Neonatal Intensive Care, Institute of Mother and Child, Kasprzaka 17a, 01-211 Warsaw, Poland
| | - Julia Proczka
- Department of Neonatology and Neonatal Intensive Care, Institute of Mother and Child, Kasprzaka 17a, 01-211 Warsaw, Poland
| | - Natalia Mazanowska
- Department of Obstetrics and Gynecology, Institute of Mother and Child, Kasprzaka 17a, 01-211 Warsaw, Poland
| | - Artur Ludwin
- Department of Obstetrics and Gynecology, Medical University of Warsaw, Pl. Starynkiewicza 1/3, 02-015 Warsaw, Poland
| | - Paweł Krajewski
- Department of Neonatology and Neonatal Intensive Care, Institute of Mother and Child, Kasprzaka 17a, 01-211 Warsaw, Poland
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30
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Dam-Vervloet AJ, Morsink CF, Krommendijk ME, Nijholt IM, van Straaten HLM, Poot L, Bosschaart N. Skin color influences transcutaneous bilirubin measurements: a systematic in vitro evaluation. Pediatr Res 2024:10.1038/s41390-024-03081-y. [PMID: 38368497 DOI: 10.1038/s41390-024-03081-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 01/18/2024] [Accepted: 01/23/2024] [Indexed: 02/19/2024]
Abstract
OBJECTIVE Concerns have been raised about the effect of skin color on the accuracy of transcutaneous bilirubin (TcB) measurements, a widely used method for hyperbilirubinemia diagnosis in newborns. Literature is inconclusive, with both reported under- and overestimations of the TcB with increasing skin pigmentation. Therefore, the influence of skin color on TcB measurements was systematically evaluated in a controlled, in vitro setting. METHODS A bilirubin meter (JM-105) was evaluated on layered phantoms that mimic neonatal skin with varying dermal bilirubin concentrations (0-250 µmol/L) and varying epidermal melanosome volume fractions (0-40%; light-dark skin color). RESULTS TcB measurements were influenced by skin pigmentation. Larger mimicked melanosome volume fractions and higher bilirubin levels led to larger underestimations of the measured TcB, compared to an unpigmented epidermis. In the in vitro setting of this study, these underestimations amounted to 26-132 µmol/L at a TcB level of 250 µmol/L. CONCLUSION This in vitro study provides insight into the effect of skin color on TcB measurements: the TcB is underestimated as skin pigmentation increases and this effect becomes more pronounced at higher bilirubin levels. Our results highlight the need for improved TcB meter design and cautious interpretation of TcB readings on newborns with dark skin. IMPACT Key message: Skin color influences transcutaneous bilirubin measurements: the darker the skin, the larger the underestimation. What this study adds to existing literature: Existing literature is inconclusive regarding the influence of skin color on transcutaneous bilirubin measurements. This study systematically evaluates and clarifies the influence of skin color on transcutaneous bilirubin measurements in a controlled, in vitro setting. IMPACT This study aids to better interpret the measured TcB level in patients with varying skin colors, and is particularly important when using TcB meters on patients with dark skin colors.
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Affiliation(s)
- Alida J Dam-Vervloet
- Biomedical Photonic Imaging group, Technical Medical Centre, University of Twente, Enschede, The Netherlands.
- Medical Physics Department, Isala hospital, Zwolle, The Netherlands.
| | - Claudia F Morsink
- Biomedical Photonic Imaging group, Technical Medical Centre, University of Twente, Enschede, The Netherlands
| | - Marleen E Krommendijk
- Biomedical Photonic Imaging group, Technical Medical Centre, University of Twente, Enschede, The Netherlands
| | - Ingrid M Nijholt
- Innovation & Science Department, Isala hospital, Zwolle, The Netherlands
- Radiology Department, Isala hospital, Zwolle, The Netherlands
| | | | - Lieke Poot
- Medical Physics Department, Isala hospital, Zwolle, The Netherlands
| | - Nienke Bosschaart
- Biomedical Photonic Imaging group, Technical Medical Centre, University of Twente, Enschede, The Netherlands
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31
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Jahan F, Parvez SM, Rahman M, Billah SM, Yeasmin F, Jahir T, Hasan R, Darmstadt GL, Arifeen SE, Hoque MM, Shahidullah M, Islam MS, Ashrafee S, Foote EM. Acceptability and operational feasibility of community health worker-led home phototherapy treatment for neonatal hyperbilirubinemia in rural Bangladesh. BMC Pediatr 2024; 24:123. [PMID: 38360716 PMCID: PMC10868082 DOI: 10.1186/s12887-024-04584-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 01/22/2024] [Indexed: 02/17/2024] Open
Abstract
There is an unmet need for phototherapy treatment in low- and middle-income countries (LMICs) to prevent disability and death of newborns with neonatal hyperbilirubinemia. Home phototherapy deployed by community health workers (CHWs) in LMICs may help increase access to essential newborn postnatal care in a more acceptable way for families and lead to an increase in indicated treatment rates for newborns with hyperbilirubinemia. We aimed to investigate the operational feasibility and acceptability of a CHW-led home phototherapy intervention in a rural sub-district of Bangladesh for families and CHWs where home delivery was common and a treatment facility for neonatal hyperbilirubinemia was often more than two hours from households. We enrolled 23 newborns who were ≥ 2 kg in weight and ≥ 35 weeks gestational age, without clinical danger signs, and met the American Academy of Pediatric treatment criteria for phototherapy for hyperbilirubinemia. We employed a mixed-method investigation to evaluate the feasibility and acceptability of home phototherapy through surveys, in-depth interviews and focus group discussions with CHWs, mothers, and grandparents. Mothers and family members found home phototherapy worked well, saved them money, and was convenient and easy to operate. CHWs found it feasible to deploy home phototherapy and identified hands-on training, mHealth job aids, a manageable workload, and prenatal education as facilitating factors for implementation. Feasibility and acceptability concerns were limited amongst parents and included: a lack of confidence in CHWs' skills, fear of putting newborn infants in a phototherapy device, and unreliable home power supply. CHW-led home phototherapy was acceptable to families and CHWs in rural Bangladesh. Further investigation should be done to determine the impact of home phototherapy on treatment rates and on preventing morbidity associated with neonatal hyperbilirubinemia. Clinical Trial (CT) registration ID: NCT03933423, full protocol can be accessed at https://doi.org/10.1186/s13102-024-00824-6 . Name of the trial registry: clinicaltrials.gov. Clinical Trial (CT) registration Date: 01/05/2019.
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Affiliation(s)
- Farjana Jahan
- Environmental Health and WASH, Health System and Population Studies Division, International Centre for Diarrhoeal Diseases Research, Bangladesh (icddr,b), Dhaka, 1212, Bangladesh.
- Environmental Interventions Unit, Infectious Disease Division, icddr,b, 68, Shaheed Tajuddin Ahmed Sarani, Mohakhali, Dhaka, 1212, Bangladesh.
| | - Sarker Masud Parvez
- Environmental Health and WASH, Health System and Population Studies Division, International Centre for Diarrhoeal Diseases Research, Bangladesh (icddr,b), Dhaka, 1212, Bangladesh
- Children's Health and Environment Program, Child Health Research Centre, The University of Queensland, South Brisbane, QLD, Australia
| | - Mahbubur Rahman
- Environmental Health and WASH, Health System and Population Studies Division, International Centre for Diarrhoeal Diseases Research, Bangladesh (icddr,b), Dhaka, 1212, Bangladesh
| | - Sk Masum Billah
- Maternal and Child Health Division, International Centre for Diarrhoeal Diseases Research, Bangladesh (icddr,b), Dhaka, Bangladesh
- Faculty of Medicine and Health, School of Public Health, University of Sydney, Sydney, Australia
| | - Farzana Yeasmin
- Environmental Health and WASH, Health System and Population Studies Division, International Centre for Diarrhoeal Diseases Research, Bangladesh (icddr,b), Dhaka, 1212, Bangladesh
| | - Tania Jahir
- College of Medicine, Nursing & Health Sciences, National University of Ireland Galway, Galway, Ireland
| | - Rezaul Hasan
- Environmental Health and WASH, Health System and Population Studies Division, International Centre for Diarrhoeal Diseases Research, Bangladesh (icddr,b), Dhaka, 1212, Bangladesh
| | - Gary L Darmstadt
- Prematurity Research Center, Department of Pediatrics, Stanford University School of Medicine, Stanford, California, USA
| | - Shams El Arifeen
- Maternal and Child Health Division, International Centre for Diarrhoeal Diseases Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Md Mahbubul Hoque
- Department of Neonatology, Bangladesh, Children Hospital & Institute, Dhaka, Bangladesh
| | | | - Muhammad Shariful Islam
- National Newborn Health Program (NNHP) and Integrated Management of Childhood Illness (IMCI), Directorate General of Health Services, Dhaka, Bangladesh
| | - Sabina Ashrafee
- National Newborn Health Program (NNHP) and Integrated Management of Childhood Illness (IMCI), Directorate General of Health Services, Dhaka, Bangladesh
| | - Eric M Foote
- Prematurity Research Center, Department of Pediatrics, Stanford University School of Medicine, Stanford, California, USA
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Trasancos C, Horey D. Experiences with neonatal jaundice management in hospitals and the community: interviews with Australian health professionals. BMJ Open 2024; 14:e075896. [PMID: 38355169 PMCID: PMC10868246 DOI: 10.1136/bmjopen-2023-075896] [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] [Received: 05/22/2023] [Accepted: 01/09/2024] [Indexed: 02/16/2024] Open
Abstract
INTRODUCTION Worldwide, neonatal jaundice accounts for considerable morbidity and mortality. Although severe adverse outcomes, such as hyperbilirubinaemia and kernicterus, are uncommon in high-income countries, these outcomes do occur, have enormous lifelong personal, health and social costs, and may be preventable. Evidence-based practice commonly relies on clinical guidelines; however, their implementation can be difficult. Implementation of neonatal jaundice care has been adversely affected by issues with professional boundaries, competing professional priorities and poor understanding of neonatal jaundice. This paper focuses on the perceptions and experiences of Australian health professionals involved in the management of neonatal jaundice. METHODS Using a qualitative descriptive approach, semistructured interviews were undertaken to gain understanding of the experiences of health professionals in Australia across the scope of care for jaundiced newborns through an interpretivist approach and to identify possible gaps in the delivery of evidence-based care. Health professionals from a range of disciplines and care settings were recruited by purposive maximum variation sampling. Interviews were conducted face-to-face or by telephone with detailed notes taken and a field journal maintained. Interview scripts were verified by participants and imported into NVivo software. Data were analysed for major themes according to type and contexts of practice. RESULTS Forty-one health professionals from six broad discipline areas were interviewed. Two major themes and explanatory subthemes were found. The first theme, falling through the gaps, highlighted gaps in evidence-based care, as described by four explanatory subthemes: professional boundaries, blindness to possibility of adverse outcomes, competing professional development priorities and unintended consequences.The second major theme, we know what should happen-but how?, described participant perceptions that it was known what was required to improve care but how to achieve such changes was unclear. The two subthemes are: improvements in education and training, and standardised policies and protocols. CONCLUSIONS Multiple barriers to the provision of evidence-based care related to neonatal jaundice management are experienced by health professionals in Australia. Clinical guidelines are not sufficient to support health professionals deliver evidence-based care in the complex contexts in which they work. Implementation strategies for evidence-based practice need to take account of the experiences of health professionals and the challenges they face. Such strategies need to focus on improving collaboration between different disciplines for the well-being of those needing care. In the case of neonatal jaundice management, consideration is also needed in how to raise awareness of the importance of avoiding severe adverse outcomes, even when they might be rare, and how this might be done. Addressing issues that lead to disjointed care or poor knowledge of neonatal jaundice among health professionals is essential.
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Affiliation(s)
| | - Dell Horey
- La Trobe University, Melbourne, Victoria, Australia
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Ruelas Castillo J, Neupane P, Karanika S, Krug S, Quijada D, Garcia A, Ayeh S, Yilma A, Costa DL, Sher A, Fotouhi N, Serbina N, Karakousis PC. The heme oxygenase-1 metalloporphyrin inhibitor stannsoporfin enhances the bactericidal activity of a novel regimen for multidrug-resistant tuberculosis in a murine model. Antimicrob Agents Chemother 2024; 68:e0104323. [PMID: 38132181 PMCID: PMC10848751 DOI: 10.1128/aac.01043-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 11/17/2023] [Indexed: 12/23/2023] Open
Abstract
Multidrug-resistant (MDR) Mycobacterium tuberculosis (Mtb) poses significant challenges to global tuberculosis (TB) control efforts. Host-directed therapies (HDTs) offer a novel approach to TB treatment by enhancing immune-mediated clearance of Mtb. Prior preclinical studies found that the inhibition of heme oxygenase-1 (HO-1), an enzyme involved in heme metabolism, with tin-protoporphyrin IX (SnPP) significantly reduced mouse lung bacillary burden when co-administered with the first-line antitubercular regimen. Here, we evaluated the adjunctive HDT activity of a novel HO-1 inhibitor, stannsoporfin (SnMP), in combination with a novel MDR-TB regimen comprising a next-generation diarylquinoline, TBAJ-876 (S), pretomanid (Pa), and a new oxazolidinone, TBI-223 (O) (collectively, SPaO), in Mtb-infected BALB/c mice. After 4 weeks of treatment, SPaO + SnMP 5mg/kg reduced mean lung bacillary burden by an additional 0.69 log10 (P = 0.01) relative to SPaO alone. As early as 2 weeks post-treatment initiation, SnMP adjunctive therapy differentially altered the expression of pro-inflammatory cytokine genes and CD38, a marker of M1 macrophages. Next, we evaluated the sterilizing potential of SnMP adjunctive therapy in a mouse model of microbiological relapse. After 6 weeks of treatment, SPaO + SnMP 10mg/kg reduced lung bacterial burdens to 0.71 ± 0.23 log10 colony-forming units (CFUs), a 0.78 log-fold greater decrease in lung CFU compared to SpaO alone (P = 0.005). However, adjunctive SnMP did not reduce microbiological relapse rates after 5 or 6 weeks of treatment. SnMP was well tolerated and did not significantly alter gross or histological lung pathology. SnMP is a promising HDT candidate requiring further study in combination with regimens for drug-resistant TB.
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Affiliation(s)
- Jennie Ruelas Castillo
- Center for Tuberculosis Research, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Pranita Neupane
- Center for Tuberculosis Research, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Styliani Karanika
- Center for Tuberculosis Research, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Stefanie Krug
- Center for Tuberculosis Research, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Darla Quijada
- Center for Tuberculosis Research, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Andrew Garcia
- Center for Tuberculosis Research, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Samuel Ayeh
- Center for Tuberculosis Research, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Addis Yilma
- Center for Tuberculosis Research, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Diego L. Costa
- Departmento de Bioquímica e Imunologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
- Departamento de Imunologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, Brazil
| | - Alan Sher
- Immunobiology Section, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | | | | | - Petros C. Karakousis
- Center for Tuberculosis Research, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
- Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
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Reddy NS, Rawat A, Karotkar S, Varma A, Taksande A, Meshram RJ, Javvaji CK, Damam S. Novel Two-Infusion Pump Technique for Exchange Transfusion in a Hyperbilirubinemic Neonate. Cureus 2024; 16:e54012. [PMID: 38476806 PMCID: PMC10929765 DOI: 10.7759/cureus.54012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Accepted: 02/11/2024] [Indexed: 03/14/2024] Open
Abstract
Neonatal hyperbilirubinemia is a common concern in newborns, with ABO blood group incompatibility serving as a significant risk factor for severe jaundice. This case report outlines the successful management of a 2.5 kg female infant born to a primigravida mother with ABO incompatibility-induced hyperbilirubinemia. The neonate, born at 38.4 weeks via lower segment cesarean section, exhibited signs of jaundice at 91 hours of life, prompting screening and subsequent confirmation of serum bilirubin levels 26.4. The decision was made using the American Academy of Pediatrics (AAP) and categorized the child under high risk according to age and bilirubin level to implement a complete exchange transfusion using a novel approach with two infusion pumps. The unique aspect of this case lies in introducing a two-infusion pump technique, one to infuse and one to extract blood by inserting the IV set in opposite directions in the infusion pump to perform the exchange transfusion, aiming to minimize complications associated with traditional methods. Careful handling of umbilical venous and arterial lines, coupled with aseptic precautions, sought to mitigate the risk of sepsis. The procedure, conducted over two hours, demonstrated stability in vital signs and was monitored with a transcutaneous bilirubinometer. Post-transfusion, repeat serum bilirubin tests showed a decrease in bilirubin of 10.1, indicating the success of the novel exchange transfusion method. The infant was discharged after a five-day hospital stay, showcasing this innovative approach's potential efficacy and safety. This case contributes to the evolving strategies in neonatal care and emphasizes the importance of tailored interventions in managing hyperbilirubinemia associated with ABO incompatibility.
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Affiliation(s)
- Naramreddy Sudheesh Reddy
- Pediatrics, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Aditi Rawat
- Neonatalogy, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Sagar Karotkar
- Pediatrics, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Ashish Varma
- Pediatrics, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Amar Taksande
- Pediatrics, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Revat J Meshram
- Pediatrics, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Chaitanya Kumar Javvaji
- Pediatrics, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - SreeHarsha Damam
- Pediatrics, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
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Oostendorp M, Ten Hove CH, van Berkel M, Roovers L. A Significant Increase in the Incidence of Neonatal Hyperbilirubinemia and Phototherapy Treatment Due to a Routine Change in Laboratory Equipment. Arch Pathol Lab Med 2024; 148:e40-e47. [PMID: 37596896 DOI: 10.5858/arpa.2022-0478-oa] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/17/2023] [Indexed: 08/21/2023]
Abstract
CONTEXT.— Total serum bilirubin (TSB) analysis is pivotal for diagnosing neonatal hyperbilirubinemia. Because of a routine change in laboratory equipment, our TSB assay changed from a diazo to a vanadate oxidase method. Upon implementation, TSB results were substantially higher in newborns than expected based on the validation. OBJECTIVE.— To investigate the application of TSB and intermethod differences in neonates and their impact on phototherapy treatment. DESIGN.— The diazo and vanadate methods were compared directly using neonatal and adult samples. Anonymized external quality control data were analyzed to explore interlaboratory differences among 8 commercial TSB assays. Clinical patient data were extracted from the medical records to investigate the number of newborns receiving phototherapy. RESULTS.— The mean bias of the vanadate versus the diazo TSB method was +17.4% and +3.7% in neonatal and adult samples, respectively. External quality control data showed that the bias of commercial TSB methods compared with the reference method varied from -3.6% to +20.2%. Within-method variation ranged from 5.2% to 16.0%. After implementation of the vanadate TSB method, the number of neonates treated with phototherapy increased approximately threefold. CONCLUSIONS.— Currently available TSB assays lack harmonization for the diagnosis of neonatal hyperbilirubinemia. Between-methods differences are substantially higher in neonatal compared with adult samples, highlighting the importance of including neonatal samples during assay validation. Close collaboration between laboratory specialists and clinicians is essential to prevent overtreatment or undertreatment upon the implementation of novel analyzers or assays. Also, harmonization of TSB assays, with an emphasis on neonatal application, is warranted.
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Affiliation(s)
- Marlies Oostendorp
- From the Departments of Clinical Chemistry and Hematology (Oostendorp), Rijnstate Hospital, Arnhem, the Netherlands
- the Department of Clinical Chemistry, Dicoon BV, Arnhem, the Netherlands (Oostendorp)
| | | | - Miranda van Berkel
- the Department of Laboratory Medicine, Radboud University Medical Centre, Nijmegen, the Netherlands (van Berkel)
| | - Lian Roovers
- Clinical Research (Roovers), Rijnstate Hospital, Arnhem, the Netherlands
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Zidan LK, Rowisha MA, Nassar MAE, Elshafey RA, El Mahallawi TH, Elmahdy HS. Magnetic resonance spectroscopy and auditory brain-stem response audiometry as predictors of bilirubin-induced neurologic dysfunction in full-term jaundiced neonates. Eur J Pediatr 2024; 183:727-738. [PMID: 37979048 PMCID: PMC10912194 DOI: 10.1007/s00431-023-05246-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 09/22/2023] [Accepted: 09/28/2023] [Indexed: 11/19/2023]
Abstract
The purpose of this research was to define the functions of MRS and ABR as predictors of bilirubin-induced neurologic dysfunction (BIND) in full-term neonates who required intervention (phototherapy and/or exchange transfusion). This prospective cohort study was done at the NICU of Tanta University Hospitals over a 2-year duration. Fifty-six full-term neonates with pathological unconjugated hyperbilirubinemia were divided according to MRS and ABR findings into 2 groups: group (1) included 26 cases with mild acute bilirubin encephalopathy (BIND-M score 1-4). Group (2) included 30 cases with neonatal hyperbilirubinemia only. In addition, 20 healthy neonates with similar ages were employed as the controls. When compared to group 2 and the control group, group 1's peak-area ratios of NAA/Cr and NAA/Cho were found to be significantly reduced (P < 0.05). As compared to group 2 and the control group, group 1's Lac/Cr ratio was significantly greater (P < 0.05), but the differences were not significant for group 2 when compared to the control group. Waves III and V peak latencies, I-III, and I-V interpeak intervals were significantly prolonged in group 1 in comparison to group 2 and controls (P < 0.05) with no significant difference between group 2 and control group. Conclusion: When the symptoms of ABE are mild and MRI does not show any evident abnormalities, MRS and ABR are helpful in differentiating individuals with ABE from patients with neonatal hyperbilirubinemia. Trial registration: ClinicalTrials.gov , Identifier: NCT06018012. What is Known: • MRS can be used as a diagnostic and prognostic tool for the differential diagnosis of patients with acute bilirubin encephalopathy, from patients with neonatal hyperbilirubinemia What is New: • ABR is a useful diagnostic and prognostic tool in the care and management of neonates with significantly raised bilirubin. It can be used as early predictor of acute bilirubin encephalopathy in the earliest stage of auditory damage caused by bilirubin.
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Affiliation(s)
| | | | | | | | | | - Heba Saied Elmahdy
- Pediatric Department, Faculty of Medicine, Tanta University, Tanta, Egypt.
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Fan J, He HY, Li HH, Wu PL, Tang L, Deng BY, Dong WH, Wang JH. Associations between UGT1A1, SLCO1B1, SLCO1B3, BLVRA and HMOX1 polymorphisms and susceptibility to neonatal severe hyperbilirubinemia in Chinese Han population. BMC Pediatr 2024; 24:82. [PMID: 38279097 PMCID: PMC10811893 DOI: 10.1186/s12887-024-04537-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 01/04/2024] [Indexed: 01/28/2024] Open
Abstract
BACKGROUND Severe neonatal hyperbilirubinemia could lead to kernicterus and neonatal death. This study aimed to analyze the association between single nucleotide polymorphisms in genes involved in bilirubin metabolism and the incidence of severe hyperbilirubinemia. METHODS A total of 144 neonates with severe hyperbilirubinemia and 50 neonates without or mild hyperbilirubinemia were enrolled in 3 institutions between 2019 and 2020. Twelve polymorphisms of 5 genes (UGT1A1, SLCO1B1, SLCO1B3, BLVRA, and HMOX1) were analyzed by PCR amplification of genomic DNA. Genotyping was performed using an improved multiplex ligation detection reaction technique based on ligase detection reaction. RESULTS The frequencies of the A allele in UGT1A1-rs4148323 and the C allele in SLCO1B3-rs2417940 in the severe hyperbilirubinemia group (30.2% and 90.6%, respectively) were significantly higher than those in the controls (30.2% vs.13.0%, 90.6% vs. 78.0%, respectively, both p < 0.05). Haplotype analysis showed the ACG haplotype of UGT1A1 were associated with an increased hyperbilirubinemia risk (OR 3.122, p = 0.001), whereas the GCG haplotype was related to a reduced risk (OR 0.523, p = 0.018). CONCLUSION The frequencies of the A allele in rs4148323 and the C allele in rs2417940 are highly associated with the incidence of severe hyperbilirubinemia in Chinese Han neonates. TRIAL REGISTRATION Trial registration number:ChiCTR1800020424; Date of registration:2018-12-29.
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Affiliation(s)
- Juan Fan
- Department of Neonatology , Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Rare Diseases in Infection and Immunity, Chongqing, China
| | - Hua-Yun He
- Department of Neonatology , Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Rare Diseases in Infection and Immunity, Chongqing, China
| | - Huan-Huan Li
- Department of Neonatology, Chongqing Jiulongpo People's Hospital, Chongqing, China
| | - Pi-Liu Wu
- Department of Neonatology, Bishan Maternity & Child Hospital of Chongqing, Chongqing, China
| | - Lei Tang
- Department of Pediatrics, Affiliated Banan Hospital of Chongqing Medical University, Chongqing, China
| | - Bo-Yin Deng
- Department of Neonatology , Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Rare Diseases in Infection and Immunity, Chongqing, China
| | - Wen-Hui Dong
- Department of Neonatology , Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Rare Diseases in Infection and Immunity, Chongqing, China.
| | - Jian-Hui Wang
- Department of Neonatology , Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Rare Diseases in Infection and Immunity, Chongqing, China
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Bansal S, Kumar V, Sharma A, Sankar MJ, Thukral A, Verma A, Agarwal R. Modified Kramer's versus Kramer's Method for Clinical Assessment of Jaundice in Term and Near-Term Neonates. Indian J Pediatr 2024:10.1007/s12098-023-05000-1. [PMID: 38214829 DOI: 10.1007/s12098-023-05000-1] [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: 08/12/2023] [Accepted: 12/19/2023] [Indexed: 01/13/2024]
Abstract
OBJECTIVES To compare the performance of Modified Kramer's and Kramer's methods in terms of agreement with total serum bilirubin (TSB). METHODS This cross-sectional study was done in Level-III neonatal unit in New Delhi. Visibly jaundiced neonates born at ≥35 wk of gestation were enrolled and examined by (i) conventional Kramer's, (ii) Modified Kramer's in artificial (MK-A) and (iii) natural daylight (MK-N), and finally sampled for estimation of TSB by point-of-care spectrophotometry. The primary outcomes were agreement of Kramer's and Modified Kramer's with TSB and accuracy in terms of proportion of bilirubin estimates lying within ±2 mg/dL of TSB; secondary outcome was agreement of MK-A and MK-N with TSB. RESULTS A total of 144 neonates with median gestation of 37 wk and mean birth weight of 2788 g were enrolled. Bland Altman analysis between Kramer's and TSB yielded mean difference of 1.7 mg/dL, 95% limits of agreement (LOA) -3.1 to 6.6 mg/dL. For Modified Kramer's and TSB, mean difference was -0.02 mg/dL, 95% LOA -4.7 to 4.7 mg/dL under artificial light; 0.02 mg/dL, 95% LOA -4.2 to 4.2 mg/dL under natural daylight. MK-N had highest proportion of bilirubin estimates lying within ±2 mg/dL of TSB (68.7%) as compared to MK-A (59.7%) [OR, 1.77; 95% CI, 1.09 to 2.86] and Kramer's (45.8%) [OR, 1.65; 95% CI, 1.27 to 2.15]. CONCLUSIONS Though all the three methods had poor agreement with TSB, Modified Kramer's method when performed in natural light had reasonable accuracy, however limited clinical utility, in evaluation of clinical jaundice.
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Affiliation(s)
- Shivam Bansal
- Division of Neonatology, Newborn Health Knowledge Centre (NHKC), Department of Pediatrics, All India Institute of Medical Sciences (AIIMS), New Delhi, 110029, India
| | - Vivek Kumar
- Division of Neonatology, Newborn Health Knowledge Centre (NHKC), Department of Pediatrics, All India Institute of Medical Sciences (AIIMS), New Delhi, 110029, India
| | - Akash Sharma
- Division of Neonatology, Newborn Health Knowledge Centre (NHKC), Department of Pediatrics, All India Institute of Medical Sciences (AIIMS), New Delhi, 110029, India
| | - M J Sankar
- Division of Neonatology, Newborn Health Knowledge Centre (NHKC), Department of Pediatrics, All India Institute of Medical Sciences (AIIMS), New Delhi, 110029, India
| | - Anu Thukral
- Division of Neonatology, Newborn Health Knowledge Centre (NHKC), Department of Pediatrics, All India Institute of Medical Sciences (AIIMS), New Delhi, 110029, India
| | - Ankit Verma
- Division of Neonatology, Newborn Health Knowledge Centre (NHKC), Department of Pediatrics, All India Institute of Medical Sciences (AIIMS), New Delhi, 110029, India
| | - Ramesh Agarwal
- Division of Neonatology, Newborn Health Knowledge Centre (NHKC), Department of Pediatrics, All India Institute of Medical Sciences (AIIMS), New Delhi, 110029, India.
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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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Sevuk Ozumut SH, Turhan AB. Neonatal hemolytic disease: How should we use indirect and direct antiglobulin tests? Pediatr Neonatol 2024; 65:11-16. [PMID: 37414722 DOI: 10.1016/j.pedneo.2023.05.001] [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] [Received: 10/22/2022] [Revised: 04/22/2023] [Accepted: 05/19/2023] [Indexed: 07/08/2023] Open
Abstract
BACKGROUND In newborns with hemolysis, the direct antiglobulin test (DAT) and indirect antiglobulin test (IAT) play a key role in demonstrating the presence of an immune cause. We aimed to emphasize the importance of IAT in mothers of DAT-positive babies. METHODS DAT was performed with forward blood grouping on cord blood in term babies who were born between September 2020 and September 2022. IAT was performed in the mothers of the babies who were found to have a positive DAT and antibody identification was performed in the mothers who were found to have a positive IAT. Specific antibodies detected and identified were associated with the clinical course. RESULTS The study included 2769 babies and their mothers. The prevalence of DAT positivity was found to be 3.3% (87 of 2661). In DAT-positive babies, the rate of ABO incompatibility was 45.9%, the rate of RhD incompatibility was 5.7% and the rate of RhD and ABO incompatibility in association was 10.3%. The rate of subgroup incompatibility and other red blood cell antibodies was 18.3%. Phototherapy was applied because of indirect hyperbilirubinemia in 16.6% of the DAT-negative babies and in 51.5% of the DAT-positive babies. The need for phototherapy was significantly higher in DAT-positive infants (p < 0.01). Severe hemolytic disease of the newborn, bilirubin level, duration of phototherapy and use of intravenous immunoglobulin were found to be significantly higher in the babies whose mothers were IAT positive compared with the babies whose mothers were IAT negative (p < 0.01). CONCLUSIONS IAT should be performed on all pregnant women. When screening with IAT is not performed during pregnancy, performing DAT in the baby plays a key role. We showed that the clinical course was more severe when mothers of DAT-positive babies were IAT positive.
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Affiliation(s)
- Sibel H Sevuk Ozumut
- Pediatrics Department, Neonatology Division, Goztepe Prof. Dr. Suleyman Yalcin City Hospital, Kadikoy, Istanbul, Turkey.
| | - Ayse Bozkurt Turhan
- Blood Transfusion Center, Goztepe Prof. Dr. Suleyman Yalcin City Hospital, Kadikoy, Istanbul, Turkey
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Eken S, Ilhan O, Hakan N. Comparison of Transcutaneous and Total Serum Bilirubin Measurements at Five Different Sites in Newborns before and after Phototherapy. KLINISCHE PADIATRIE 2024; 236:31-38. [PMID: 37647914 DOI: 10.1055/a-2135-3367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
OBJECTIVE This study aims to examine the accuracy of transcutaneous bilirubin (TcB) in estimating the total serum bilirubin (TSB) level at five different sites before and immediately after phototherapy. METHODS This study prospectively enrolled infants with a gestational age of 34 to 416/7 weeks who were clinically diagnosed with neonatal jaundice and required phototherapy within 28 days after birth. TcB levels were measured on the uncovered four areas (forehead, mid-sternum, abdomen, and interscapular site) and covered hipbone by using the Dräger JM-103 Jaundice Meter before phototherapy and at 0 min after discontinuing phototherapy. Correlation and agreement between TcB and TSB levels were assessed before and after phototherapy. RESULTS We included 108 infants with a mean gestational age of 37.6±1.5 weeks and birth weight of 3108±548 g. A strong significant correlation was found between TSB and TcB measurements at all five sites before phototherapy with the strongest correlation at the interscapular site (r=0.768, p=0.001). The correlation was weakened between TSB and TcB at all five sites after phototherapy; however, the strongest correlation was at the covered hipbone (r=0.619, p=0.001). TcB measurements at all five sites tended to underestimate TSB levels before and after phototherapy. The difference (TcB - TSB) tended to increase with increasing TSB levels. CONCLUSIONS TcB levels were most accurately measured at the interscapular site and covered hipbone before and immediately after phototherapy, respectively.
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Affiliation(s)
- Seda Eken
- Department of Pediatrics, Mugla Sitki Kocman University School of Medicine, Mugla, Turkey
| | - Ozkan Ilhan
- Division of Neonatology, Mugla Sitki Kocman University School of Medicine, Department of Pediatrics, Mugla, Turkey
| | - Nilay Hakan
- Division of Neonatology, Mugla Sitki Kocman University School of Medicine, Department of Pediatrics, Mugla, Turkey
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Korkor MS, Khashaba M, Mohamed SA, Darwish A. Effect of different timings of umbilical cord clamping on the level of CD34 + cells in full-term neonates. Sci Rep 2023; 13:22917. [PMID: 38129640 PMCID: PMC10739938 DOI: 10.1038/s41598-023-50100-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 12/15/2023] [Indexed: 12/23/2023] Open
Abstract
Despite the fact that delayed cord clamping (DCC) is recommended by many international organizations, early cord clamping is still widely practiced worldwide. The overarching goal of the DCC practice is to maximize neonatal benefits as achieving higher hemoglobin levels and decreasing the incidence of anemia as well as avoiding the adverse consequences. The current study was conducted to identify the effect of of DCC on the number of CD34+ stem cells in cord blood of full term neonates after two different timings (30 and 60 s after birth). One hundred and three full-term (FT) newborn babies (gestational age 37-40 weeks) delivered by elective cesarean section were randomly assigned into 2 groups: Group 1: babies were subjected to DCC 30 s after birth (50 newborns). Group 2: babies were subjected to DCC 60 s after birth (53 newborns). Neonates in group 2 had significantly higher levels of hemoglobin, hematocrit, total nucleated cells and CD34+ cells compared to those in group 1. The practice of DCC 60 s after birth achieved better CD34+ stem cells transfer in FT neonates than clamping the cord after 30 s.
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Affiliation(s)
- Mai S Korkor
- Pediatric Department, Mansoura University Children's Hospital, Faculty of Medicine, Mansoura University, Mansoura, Egypt.
| | - Mohamed Khashaba
- Neonatology Unit, Pediatric Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Sara A Mohamed
- Obstetric and Gynecology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
- Mansoura Research Center for Cord Stem Cells (MARC-CSC), Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Ahmad Darwish
- Mansoura Research Center for Cord Stem Cells (MARC-CSC), Faculty of Medicine, Mansoura University, Mansoura, Egypt
- Hematology/Oncology/Bone Marrow Transplantation Unit, Pediatric Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
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Leung-Pineda V, Weinzierl EP, Rogers BB. Preliminary Investigation into the Prevalence of G6PD Deficiency in a Pediatric African American Population Using a Near-Patient Diagnostic Platform. Diagnostics (Basel) 2023; 13:3647. [PMID: 38132231 PMCID: PMC10742488 DOI: 10.3390/diagnostics13243647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 12/03/2023] [Accepted: 12/05/2023] [Indexed: 12/23/2023] Open
Abstract
Glucose-6-phosphate dehydrogenase (G6PD) deficiency is prevalent in the African American population. We identified eighteen G6PD-deficient samples (9%) in a study of residual, de-identified whole blood specimens from 200 African American pediatric patients using a point-of-care instrument. This highlights the possibility of a rapid time to result for G6PD testing, which can be valuable in some clinical scenarios.
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Affiliation(s)
| | | | - Beverly B. Rogers
- Department of Pathology and Laboratory Medicine, Children’s Healthcare of Atlanta, and Emory University School of Medicine, Atlanta, GA 30322, USA; (V.L.-P.); (E.P.W.)
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Zarkesh M, Mahdipour S, Aghili S, Jafari A, Nouri SAH, Hassanzadeh Rad A, Ghalandari M, Tabrizi M. Evaluation of therapeutic effect of oral Ursodeoxycholic Acid on indirect hyperbilirubinemia in term neonates undergoing phototherapy: A randomized controlled clinical trial. PLoS One 2023; 18:e0273516. [PMID: 38085723 PMCID: PMC10715657 DOI: 10.1371/journal.pone.0273516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Accepted: 08/03/2022] [Indexed: 12/18/2023] Open
Abstract
INTRODUCTION AND AIMS Phototherapy is the most common treatment modality of neonatal hyperbilirubinemia. We aimed to evaluate the therapeutic effect of oral Ursodeoxycholic Acid (UDCA) on indirect hyperbilirubinemia in term neonates undergoing phototherapy. MATERIALS AND METHODS This randomized controlled clinical trial was performed on 106 full-term neonates with jaundice who were admitted to the neonatal ward of 17 Shahrivar Hospital in Rasht, Iran. The neonates were randomly assigned to two groups of intervention (10 mg/kg UDCA+phototherapy) and control (phototherapy alone). Total serum bilirubin (TSB) was measured at the time of admission, during first 12, 24, and 48 hours after admission and at the time of discharge. The duration of hospitalization and side effects were also assessed in both groups. IBM SPSS Statistics for Windows, version 20 was used to analyze the data. RESULTS Results showed that in the intervention group, 28 (52.8%) of neonates were boys with the mean age of 5.1±1.25 days. While, in the control group 29 (54.7%) of them were boys with the mean age of 5.19±2.26 days. Bilirubin levels in both groups decreased significantly after hospitalization (at 12, 24 and 48 hours) (P <0.001). The mean of bilirubin at 12, 24 and 48 hours in the intervention and control groups were 17.1, 13.2, 10.2 mg / dl and 17.1, 14.2 and 11.3 mg / dl, respectively. At the time of discharge, TSB in the former compared to the latter group was significantly reduced (7.74± 1.39 vs. 8.67±1.35) (P = 0.001). In addition, the duration of hospitalization was considerably shorter in the intervention compared to the control group (P = 0.038) and no side effects were observed. CONCLUSIONS Administering UDCA plus phototherapy reduced TSB and length of hospital stay with proper safety and efficacy. Therefore, it seems that this combination can be an appropriate treatment modality in neonatal hyperbilirubinemia.
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Affiliation(s)
- Marjaneh Zarkesh
- Pediatric Diseases Research Center, Guilan University of Medical Sciences, Rasht, Iran
| | - Sadroddin Mahdipour
- Pediatric Diseases Research Center, Guilan University of Medical Sciences, Rasht, Iran
| | - Safoora Aghili
- Pediatric Diseases Research Center, Guilan University of Medical Sciences, Rasht, Iran
| | - Atefeh Jafari
- Department of Clinical Pharmacy, School of Pharmacy, Guilan University of Medical Sciences, Rasht, Iran
| | | | - Afagh Hassanzadeh Rad
- Pediatric Diseases Research Center, Guilan University of Medical Sciences, Rasht, Iran
| | - Maryam Ghalandari
- PhD Student in Epidemiology, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Manijeh Tabrizi
- Pediatric Diseases Research Center, Guilan University of Medical Sciences, Rasht, Iran
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Abstract
Newborns with hyperbilirubinemia have traditionally received phototherapy in hospital. Hospital stays for infants, however, may negatively affect parent-infant bonding and induce anxiety and feelings of powerlessness in mothers. This study examined parent's experiences of providing phototherapy to their neonates at home instead. A descriptive qualitative study based on 15 interviews (8 mothers and 7 fathers) with parents of 8 children who had been randomised to home phototherapy was conducted during spring 2018 in Örebro county, Sweden. Inductive content analysis was used. The overall experience of home phototherapy was positive, and five categories were identified describing their experiences: continuing life at home, adjusting to having a newborn, feeling secure, experiencing parenthood and accessing information. The findings support the use of home phototherapy. Parents felt secure at home with their infants and emphasised the importance of clear information and round-the-clock access to hospital staff.
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Affiliation(s)
- Miriam Pettersson
- Department of Paediatrics, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
| | - Mats Eriksson
- Department of Paediatrics, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
- Faculty of Medicine and Health, School of Health Sciences, Örebro University, Örebro, Sweden
| | - Karin Blomberg
- Faculty of Medicine and Health, School of Health Sciences, Örebro University, Örebro, Sweden
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Belide S, Uddin MW, Kumar S, Sethi RK, Diwakar K, Jhajra S. Clinical study to determine the predictability of significant rebound hyperbilirubinemia in neonates after phototherapy and conditions likely to be associated with it: Prospective observational study in a teaching hospital in Eastern India. J Family Med Prim Care 2023; 12:3362-3367. [PMID: 38361853 PMCID: PMC10866226 DOI: 10.4103/jfmpc.jfmpc_1148_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 08/05/2023] [Accepted: 09/11/2023] [Indexed: 02/17/2024] Open
Abstract
Aim Neonatal hyperbilirubinemia is defined as yellowish discoloration of the skin, conjunctive, and sclera from the elevated serum or plasma bilirubin in the newborn. The standard of care for the management of neonatal hyperbilirubinemia is phototherapy to prevent long-term neurological sequelae. The aim of this study was to ascertain the predictability of significant rebound hyperbilirubinemia (SRH) in neonates after phototherapy and the factors associated with it. Materials and Methods Neonates ≥ 35 weeks of gestation, who received treatment for hyperbilirubinemia and admitted in our hospital from 15th of March 2019 to 15th of September 2020 were enrolled after taking parental consent. SRH was defined as bilirubin levels crossing the treatment threshold within 72 hours of phototherapy termination. Logistic regression analysis was used to identify the predictability of SRH. Results Out of 400 neonates treated with phototherapy, 10% developed SRH. Prematurity (Gestational age < 37 weeks), low birth weight (Birth weight < 2000 gram), ABO and Rh incompatibility, Glucose-6-phophate dehydrogenase deficiency (G6PD) deficiency, sepsis, and longer duration of primary phototherapy were found to be significantly associated with rebound hyperbilirubinemia. The probability of SRH increases for all American Academy of Paediatrics (AAP) risk categories as the gestational age decreases and total serum bilirubin at the stoppage of phototherapy increases. Conclusions The presence of risk factors should be taken into account while planning discharge and follow-up of neonates admitted for neonatal hyperbilirubinemia to prevent long-term complication of bilirubin neurotoxicity.
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Affiliation(s)
- Shivakumar Belide
- Department of Paediatrics, Malla Reddy Institute of Medical Sciences, Hyderabad, Telangana, India
| | - Md Waseem Uddin
- Department of Paediatrics, Manipal Tata Medical College, MAHE, Jamshedpur, Jharkhand, India
| | - Sushil Kumar
- Department of Paediatrics, Manipal Tata Medical College, MAHE, Jamshedpur, Jharkhand, India
| | - Rajesh Kumar Sethi
- Department of Paediatrics, Manipal Tata Medical College, MAHE, Jamshedpur, Jharkhand, India
| | - Kumar Diwakar
- Department of Paediatrics, Manipal Tata Medical College, MAHE, Jamshedpur, Jharkhand, India
| | - Sandeep Jhajra
- Department of Paediatrics, Manipal Tata Medical College, MAHE, Jamshedpur, Jharkhand, India
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DeZure C. Updated Clinical Practice Guidelines for Management of Hyperbilirubinemia in Infants Born at 35 Weeks or More Gestation. Pediatr Ann 2023; 52:e436-e439. [PMID: 38049191 DOI: 10.3928/19382359-20231016-07] [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: 12/06/2023]
Abstract
Given the prevalence of jaundice in newborns, and the consequences of untreated hyperbilirubinemia, the long-awaited revised clinical practice guidelines for hyperbilirubinemia were finally released in August 2022 by the American Academy of Pediatrics as an update to the 2004 guidelines on the same topic. As new evidence and data become available, it is important for pediatricians and neonatologists to re-assess their clinical decision-making over time to ensure that patients are receiving the best care possible. With improvements in medical equipment and medical technology, and growing concerns about the overtreatment of hyperbilirubinemia, the newest clinical practice guidelines attempt to tackle the prevention, risk assessment, monitoring, and treatment of hyperbilirubinemia with these things in mind. [Pediatr Ann. 2023;52(12):e436-e439.].
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Ilonze J, Kannan Loganathan P, Kumar R, Elliot C. Does strengths of a positive direct antiglobulin test predicts the need for phototherapy and duration of phototherapy? - a single center, retrospective study. J Matern Fetal Neonatal Med 2023; 36:2227910. [PMID: 38092424 DOI: 10.1080/14767058.2023.2227910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 06/16/2023] [Indexed: 12/18/2023]
Abstract
BACKGROUND Use of Direct Antiglobulin test (DAT) in management of neonatal hyperbilirubinemia is conflicting. OBJECTIVE whether strength of positive DAT predicts the need for phototherapy, duration of phototherapy and need for major interventions. METHODS We retrospectively collected data on all DAT positive neonates with birth gestational age ≥32 weeks over six years (2014-2019). Data regarding blood group, DAT and clinical details were obtained from a hospital database. We also collected data on serial hemoglobin and other relevant laboratory parameters. We also collected data on infants receiving major interventions such as exchange transfusion, in-utero transfusion, immunoglobulins, and postnatal transfusion for the duration of the study period. All of these infants were electronically followed up for a period of 6 weeks. This study was approved by institutional audit authority. All the statistics were performed using SPSS software. RESULTS Out of 1285 DAT tests performed, only 91 infants were positive (7%), and 78 DAT positive infants were available for analysis. There were 54 infants with DAT (1+), 15 infants with DAT (2+), 7 infants with DAT (3+) and 2 infants with DAT (4+). There was no significant statistical difference in terms of need for phototherapy, duration of phototherapy, need for major interventions and hemoglobin levels at different time points between the groups (DAT 1+ Vs DAT ≥2+; DAT ≤2+ Vs DAT >2). A Total of 10 infants received major intervention, with one infant receiving all three interventions (DAT 3+ with significant maternal antibodies), 2 additional infants (both DAT1+) received exchange transfusion, 6 additional infants received immunoglobulin (2 infants: DAT 2+; 4 infants: DAT 1+) and one additional infant (DAT 1+) with significant maternal antibodies received a postnatal transfusion. CONCLUSION Strength of a DAT did not predict the need for phototherapy, duration of phototherapy, and the need for major hemolysis related intervention in the first 6 weeks of life.
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Affiliation(s)
- Jennifer Ilonze
- Neonatal Unit, James Cook University Hospital, Middlesbrough, UK
| | - Prakash Kannan Loganathan
- Neonatal Unit, James Cook University Hospital, Middlesbrough, UK
- Clinical Academic office, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
- Department of Physics, University of Durham, Durham, UK
| | - Rohit Kumar
- Neonatal Unit, James Cook University Hospital, Middlesbrough, UK
| | - Chris Elliot
- Transfusion, South Tees Pathology, James Cook University Hospital, Middlesbrough, UK
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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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Affiliation(s)
- Robert D Christensen
- Division of Neonatology, Department of Pediatrics, University of Utah, Salt Lake City, UT, USA.
- Obstetric and Neonatal Operations, Intermountain Health, Salt Lake City, UT, USA.
| | - Timothy M Bahr
- Division of Neonatology, Department of Pediatrics, University of Utah, Salt Lake City, UT, USA
- Obstetric and Neonatal Operations, Intermountain Health, Salt Lake City, UT, USA
| | - Ronald J Wong
- Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Hendrik J Vreman
- Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Vinod K Bhutani
- Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - David K Stevenson
- Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine, Stanford, CA, USA
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Christensen RD, Bahr TM, Ilstrup SJ, Dizon-Townson DS. Alloimmune hemolytic disease of the fetus and newborn: genetics, structure, and function of the commonly involved erythrocyte antigens. J Perinatol 2023; 43:1459-1467. [PMID: 37848604 DOI: 10.1038/s41372-023-01785-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 09/13/2023] [Accepted: 09/19/2023] [Indexed: 10/19/2023]
Abstract
Hemolytic disease of the fetus and newborn (HDFN) can occur when a pregnant woman has antibody directed against an erythrocyte surface antigen expressed by her fetus. This alloimmune disorder is restricted to situations where transplacental transfer of maternal antibody to the fetus occurs, and binds to fetal erythrocytes, and significantly shortens the red cell lifespan. The pathogenesis of HDFN involves maternal sensitization to erythrocyte "non-self" antigens (those she does not express). Exposure of a woman to a non-self-erythrocyte antigen principally occurs through either a blood transfusion or a pregnancy where paternally derived erythrocyte antigens, expressed by her fetus, enter her circulation, and are immunologically recognized as foreign. This review focuses on the genetics, structure, and function of the erythrocyte antigens that are most frequently involved in the pathogenesis of alloimmune HDFN. By providing this information we aim to convey useful insights to clinicians caring for patients with this condition.
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Affiliation(s)
- Robert D Christensen
- Division of Neonatology, Department of Pediatrics, University of Utah Health, Salt Lake City, UT, USA.
- Obstetric and Neonatal Operations, Intermountain Health, Salt Lake City, UT, USA.
| | - Timothy M Bahr
- Division of Neonatology, Department of Pediatrics, University of Utah Health, Salt Lake City, UT, USA
- Obstetric and Neonatal Operations, Intermountain Health, Salt Lake City, UT, USA
| | - Sarah J Ilstrup
- Intermountain Health Transfusion Services and Department of Pathology, Intermountain Medical Center, Murray, UT, USA
| | - Donna S Dizon-Townson
- Division of Neonatology, Department of Pediatrics, University of Utah Health, Salt Lake City, UT, USA
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, University of Utah Health, and Intermountain Health, Salt Lake City, UT, USA
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