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Zhao Y, Wang A, Wang D, Sun D, Zhao J, Zhang Y, Hua K, Gu Y, Li S, Liao J, Wang P, Sun J, Huang J. Development of a diagnostic model for biliary atresia based on MMP7 and serological tests using machine learning. Pediatr Surg Int 2024; 40:203. [PMID: 39030361 DOI: 10.1007/s00383-024-05740-x] [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] [Accepted: 06/09/2024] [Indexed: 07/21/2024]
Abstract
OBJECTIVE To develop a machine learning diagnostic model based on MMP7 and other serological testing indicators for early and efficient diagnosis of biliary atresia (BA). METHODS A retrospective analysis was conducted on patient information from those hospitalized for pathological jaundice at Beijing Children's Hospital between January 1, 2019, and December 31, 2023. Patients with serum MMP7, liver stiffness measurements, and other routine serological tests were included in the study. Six machine learning models were constructed, including logistic regression (LR), random forest (RF), decision tree (DET), support vector machine classifier (SVC), neural network (MLP), and extreme gradient boosting (XGBoost), to diagnose BA. The area under the receiver operating characteristic curve was used to evaluate the diagnostic efficacy of the various models. RESULTS A total of 98 patients were included in the study, comprising 64 BA patients and 34 patients with other cholestatic liver diseases. Among the six machine learning models, the XGBoost algorithm model and RF algorithm model achieved the best predictive performance, with an AUROC of nearly 100% in both the training and validation sets. In the training set, these two algorithm models achieved an accuracy, precision, recall, F1 score, and AUROC of 1. Through model interpretation analysis, serum MMP7 levels, serum GGT levels, and acholic stools were identified as the most important indicators for diagnosing BA. The nomogram constructed based on the XGBoost algorithm model also demonstrated convenient and efficient diagnostic efficacy. CONCLUSION Machine learning models, especially the XGBoost algorithm and RF algorithm models, constructed based on preoperative serum MMP7 and serological tests can diagnose BA more efficiently and accurately. The most important influencing factors for diagnosis are serum MMP7, serum GGT, and acholic stools.
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Affiliation(s)
- Yong Zhao
- Department of Neonatal Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - An Wang
- Department of Neonatal Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Dingding Wang
- Department of Neonatal Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China.
| | - Dayan Sun
- Department of Neonatal Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Jiawei Zhao
- Department of Neonatal Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Yanan Zhang
- Department of Neonatal Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Kaiyun Hua
- Department of Neonatal Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Yichao Gu
- Department of Neonatal Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Shuangshuang Li
- Department of Neonatal Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Junmin Liao
- Department of Neonatal Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Peize Wang
- Department of Neonatal Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Jie Sun
- Department of Neonatal Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Jinshi Huang
- Department of Neonatal Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China.
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Tam PKH, Wells RG, Tang CSM, Lui VCH, Hukkinen M, Luque CD, De Coppi P, Mack CL, Pakarinen M, Davenport M. Biliary atresia. Nat Rev Dis Primers 2024; 10:47. [PMID: 38992031 DOI: 10.1038/s41572-024-00533-x] [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: 06/10/2024] [Indexed: 07/13/2024]
Abstract
Biliary atresia (BA) is a progressive inflammatory fibrosclerosing disease of the biliary system and a major cause of neonatal cholestasis. It affects 1:5,000-20,000 live births, with the highest incidence in Asia. The pathogenesis is still unknown, but emerging research suggests a role for ciliary dysfunction, redox stress and hypoxia. The study of the underlying mechanisms can be conceptualized along the likely prenatal timing of an initial insult and the distinction between the injury and prenatal and postnatal responses to injury. Although still speculative, these emerging concepts, new diagnostic tools and early diagnosis might enable neoadjuvant therapy (possibly aimed at oxidative stress) before a Kasai portoenterostomy (KPE). This is particularly important, as timely KPE restores bile flow in only 50-75% of patients of whom many subsequently develop cholangitis, portal hypertension and progressive fibrosis; 60-75% of patients require liver transplantation by the age of 18 years. Early diagnosis, multidisciplinary management, centralization of surgery and optimized interventions for complications after KPE lead to better survival. Postoperative corticosteroid use has shown benefits, whereas the role of other adjuvant therapies remains to be evaluated. Continued research to better understand disease mechanisms is necessary to develop innovative treatments, including adjuvant therapies targeting the immune response, regenerative medicine approaches and new clinical tests to improve patient outcomes.
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Affiliation(s)
- Paul K H Tam
- Medical Sciences Division, Macau University of Science and Technology, Macau, China.
- Department of Surgery, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China.
| | - Rebecca G Wells
- Division of Gastroenterology and Hepatology, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Clara S M Tang
- Department of Surgery, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
- Dr. Li Dak-Sum Research Centre, The University of Hong Kong, Hong Kong SAR, China
| | - Vincent C H Lui
- Department of Surgery, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
- Dr. Li Dak-Sum Research Centre, The University of Hong Kong, Hong Kong SAR, China
| | - Maria Hukkinen
- Section of Paediatric Surgery, Paediatric Liver and Gut Research Group, New Children's Hospital, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Carlos D Luque
- Hospital de Niños Ricardo Gutiérrez, Buenos Aires, Argentina
| | - Paolo De Coppi
- NIHR Biomedical Research Centre, Great Ormond Street Hospital for Children NHS Foundation Trust and Great Ormond Street Institute of Child Health, University College London, London, UK
| | - Cara L Mack
- Department of Paediatrics, Division of Paediatric Gastroenterology, Hepatology and Nutrition, Medical College of Wisconsin, Children's Wisconsin, Milwaukee, WI, USA
| | - Mikko Pakarinen
- Section of Paediatric Surgery, Paediatric Liver and Gut Research Group, New Children's Hospital, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
- Department of Women's and Children's Health, Karolinska Institute, Stockholm, Sweden
| | - Mark Davenport
- Department of Paediatric Surgery, King's College Hospital, London, UK
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Chen X, Zhao D, Ji H, Chen Y, Li Y, Zuo Z. Predictive modeling for early detection of biliary atresia in infants with cholestasis: Insights from a machine learning study. Comput Biol Med 2024; 174:108439. [PMID: 38643596 DOI: 10.1016/j.compbiomed.2024.108439] [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: 01/12/2024] [Revised: 03/26/2024] [Accepted: 04/07/2024] [Indexed: 04/23/2024]
Abstract
Cholestasis, characterized by the obstruction of bile flow, poses a significant concern in neonates and infants. It can result in jaundice, inadequate weight gain, and liver dysfunction. However, distinguishing between biliary atresia (BA) and non-biliary atresia in these young patients presenting with cholestasis poses a formidable challenge, given the similarity in their clinical manifestations. To this end, our study endeavors to construct a screening model aimed at prognosticating outcomes in cases of BA. Within this study, we introduce a wrapper feature selection model denoted as bWFMVO-SVM-FS, which amalgamates the water flow-based multi-verse optimizer (WFMVO) and support vector machine (SVM) technology. Initially, WFMVO is benchmarked against eleven state-of-the-art algorithms, with its efficiency in searching for optimized feature subsets within the model validated on IEEE CEC 2017 and IEEE CEC 2022 benchmark functions. Subsequently, the developed bWFMVO-SVM-FS model is employed to analyze a cohort of 870 consecutively registered cases of neonates and infants with cholestasis (diagnosed as either BA or non-BA) from Xinhua Hospital and Shanghai Children's Hospital, both affiliated with Shanghai Jiao Tong University. The results underscore the remarkable predictive capacity of the model, achieving an accuracy of 92.639 % and specificity of 88.865 %. Gamma-glutamyl transferase, triangular cord sign, weight, abnormal gallbladder, and stool color emerge as highly correlated with early symptoms in BA infants. Furthermore, leveraging these five significant features enhances the interpretability of the machine learning model's performance outcomes for medical professionals, thereby facilitating more effective clinical decision-making.
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Affiliation(s)
- Xuting Chen
- Department of Neonatology, Xinhua Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Dongying Zhao
- Department of Neonatology, Xinhua Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Haochen Ji
- The Seventh Research Division, Beihang University (BUAA), Beijing, China
| | - Yihuan Chen
- Department of Neonatology, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Yahui Li
- Department of Neonatology, Xinhua Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Zongyu Zuo
- The Seventh Research Division, Beihang University (BUAA), Beijing, China.
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Wang WH, Chiu FY, Kuo TT, Shao YHJ. Maternal Prenatal Infections and Biliary Atresia in Offspring. JAMA Netw Open 2024; 7:e2350044. [PMID: 38170523 PMCID: PMC10765264 DOI: 10.1001/jamanetworkopen.2023.50044] [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: 07/31/2023] [Accepted: 11/15/2023] [Indexed: 01/05/2024] Open
Abstract
Importance Investigations into the association of antepartum maternal infections with the pathogenesis of biliary atresia (BA) in human offspring are insufficient. Objective To examine the association between prenatal infections in mothers and the development of BA in their offspring. Design, Setting, and Participants This population-based case-control study obtained administrative data from the Taiwan National Health Insurance Research Database with linkage to the Taiwan Maternal and Child Health Database, capturing demographic and medical information on nearly all 23 million of the Taiwan population. The cohort comprised 2 905 978 singleton live births among mother-infant dyads between January 1, 2004, and December 31, 2020, in Taiwan. The case group of infants with BA was identified from use of International Classification of Diseases diagnostic codes for BA and subsequent Kasai procedure or liver transplant. The control group was randomly selected from infants without BA, representing approximately 1 in 1000 study population. Data analyses were performed from May 1 to October 31, 2023. Exposure Prenatal maternal infections, including intestinal infection, influenza, upper airway infection, pneumonia, soft-tissue infection, and genitourinary tract infection. Main Outcomes and Measures The main outcome was exposure to prenatal maternal infections. Inverse probability weighting analysis was performed by building a logistic regression model to estimate the probability of the exposure observed for a particular infant and using the estimated probability as a weight in subsequent analyses. The weighted odds ratio (OR) estimated by logistic regressions was then used to assess the risk of BA in offspring after prenatal maternal infections. Results Among the mother-infant dyads included, 447 infants with BA were cases (232 females [51.9%]) and 2912 infants without BA were controls (1514 males [52.0%]). The mean (SD) maternal age at childbirth was 30.7 (4.9) years. Offspring exposed to prenatal intestinal infection (weighted OR, 1.46; 95% CI, 1.17-1.82) and genitourinary tract infection (weighted OR, 1.22; 95% CI, 1.05-1.41) in mothers exhibited a significantly higher risk of BA. Furthermore, maternal intestinal infection (weighted OR, 6.05; 95% CI, 3.80-9.63) and genitourinary tract infection (weighted OR, 1.55; 95% CI, 1.13-2.11) that occurred during the third trimester were associated with an increased risk of BA in offspring. Conclusions and Relevance Results of this case-control study indicate an association between prenatal intestinal infection and genitourinary tract infection in mothers and BA occurrence in their offspring. Further studies are warranted to explore the underlying mechanisms of this association.
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Affiliation(s)
- Wei-Hao Wang
- Graduate Institute of Biomedical Informatics, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
- Department of Pediatrics, Changhua Christian Hospital, Changhua, Taiwan
| | - Fang-Yu Chiu
- Department of Obstetrics and Gynecology and Women’s Health, Taichung Veterans General Hospital, Taichung, Taiwan
- Department of Obstetrics and Gynecology, Lienchiang County Hospital, Lienchiang, Taiwan
| | - Tzu-Tung Kuo
- Health Data Analytics and Statistics Center, Office of Data Science, Taipei Medical University, Taipei, Taiwan
| | - Yu-Hsuan Joni Shao
- Graduate Institute of Biomedical Informatics, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
- Clinical Big Data Research Center, Taipei Medical University Hospital, Taipei, Taiwan
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Zhang CL, Wu Y, Bao Y, Jiang WY, Hu XJ. Psychological Journey and Coping Styles of Parents of Infants With Biliary Atresia: A Single-Center Qualitative Study. Adv Neonatal Care 2023; 23:E107-E113. [PMID: 37442109 PMCID: PMC10467806 DOI: 10.1097/anc.0000000000001093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/15/2023]
Abstract
BACKGROUND Biliary atresia is a rare and serious neonatal disease that affects the quality of life of both infants and parents. There is currently limited literature on the experiences of parents with infants diagnosed with biliary atresia. PURPOSE To explore the psychological journey and coping styles of parents of infants with biliary atresia in a single center in Shanghai, China. METHODS A qualitative study design was used. Face-to-face and semistructured interviews were conducted with 10 parents of infants with biliary atresia. Colaizzi's method of data analysis was utilized, using NVivo 11.0 software. RESULTS The psychological journey and coping styles of parents could be divided into 4 stages. Different themes were extracted at different stages: before diagnosis, parents experienced complex emotions and actively sought treatment; at the diagnosis stage, negative emotions dominated and parents convinced themselves to accept reality; in the postoperative stage, positive emotions, accepting reality, active response, and the need to learn to take care of their infant gradually appeared; and at the discharge stage, parents accepted the coexistence of positive and negative emotions and the variety of needs that emerged. IMPLICATIONS FOR PRACTICE The findings of the study may help healthcare professionals identify and focus on the psychological needs of parents of infants with biliary atresia, leading them to implement effective coping strategies to increase the caregiving ability of parents. IMPLICATIONS FOR RESEARCH Future research should explore the effects of supportive interventions for parents of infants with serious chronic illnesses.
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Affiliation(s)
- Cheng-Lu Zhang
- Departments of General Surgery (Mss Zhang, Wu, Bao, and Jiang) and Nursing (Dr Hu), National Children's Medical Center, Children's Hospital of Fudan University, Shanghai, China
| | - Ying Wu
- Departments of General Surgery (Mss Zhang, Wu, Bao, and Jiang) and Nursing (Dr Hu), National Children's Medical Center, Children's Hospital of Fudan University, Shanghai, China
| | - Ying Bao
- Departments of General Surgery (Mss Zhang, Wu, Bao, and Jiang) and Nursing (Dr Hu), National Children's Medical Center, Children's Hospital of Fudan University, Shanghai, China
| | - Wen-Yi Jiang
- Departments of General Surgery (Mss Zhang, Wu, Bao, and Jiang) and Nursing (Dr Hu), National Children's Medical Center, Children's Hospital of Fudan University, Shanghai, China
| | - Xiao-Jing Hu
- Departments of General Surgery (Mss Zhang, Wu, Bao, and Jiang) and Nursing (Dr Hu), National Children's Medical Center, Children's Hospital of Fudan University, Shanghai, China
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Laue T, Baumann U. Odevixibat: an investigational inhibitor of the ileal bile acid transporter (IBAT) for the treatment of biliary atresia. Expert Opin Investig Drugs 2022; 31:1143-1150. [PMID: 36440482 DOI: 10.1080/13543784.2022.2151890] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
INTRODUCTION Biliary atresia (BA) is a rare, non-curable cholestasis-causing disease in infancy, due to progressive ascending bile duct sclerosis. Even after restoration of bile flow following Kasai portoenterostomy, about half of these children need a liver transplant by their 2nd birthday, due to progressive fibrosis. Toxicity of bile acids may play a central role in disease progression, but drug therapies are not yet available. With ileal bile acid transporter (IBAT) inhibitors, there is a potential novel drug option that inhibits the absorption of bile acids in the small intestine. As a result of reduced bile acid accumulation in the cholestatic liver, it may be possible to delay hepatic remodeling. AREAS COVERED This review summarizes the dataset on bile acids and the potential effects of odevixibat, an IBAT inhibitor, in children with BA. EXPERT OPINION Systemic reduction of bile acids with the aim of preventing inflammation, and thus liver remodeling, is a novel, promising, therapeutic concept. In principle, however, the time until diagnosis and surgical treatment of BA should still be kept as short as possible in order to minimize liver remodeling before medical intervention can be initiated. IBAT inhibitors may add to the medical options in limiting disease progression in BA.
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Affiliation(s)
- Tobias Laue
- Division of Paediatric Gastroenterology and Hepatology, Department of Paediatric Liver, Kidney and Metabolic Diseases, Hannover Medical School, Hannover, Germany
| | - Ulrich Baumann
- Division of Paediatric Gastroenterology and Hepatology, Department of Paediatric Liver, Kidney and Metabolic Diseases, Hannover Medical School, Hannover, Germany
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Mittal A, Kahlam A, Le A, Ahlawat S, Monteiro IM. Hospital Utilization, Treatment Modalities, and Mortality Using Different Biopsy Methods in Infants With Biliary Atresia. Cureus 2022; 14:e24726. [PMID: 35676980 PMCID: PMC9166456 DOI: 10.7759/cureus.24726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/04/2022] [Indexed: 11/24/2022] Open
Abstract
Objectives To present a nationwide retrospective analysis of the sequelae and aftereffects of different liver biopsy methods in the care of pediatric patients with biliary atresia. Methods The National Inpatient Sample 2001-2013 database was queried for a primary diagnosis of biliary atresia and stratified based on biopsy type including percutaneous, surgical, laparoscopic, and transjugular. Patient demographics, length of stay, hospital costs, type of treatment, and mortality were compared by biopsy type. One-way analysis of variance test and multivariable logistic regression were used for analysis with α < 0.05. Results A total of 4,306 patients with biliary atresia were identified, of whom 2,293 underwent no biopsy, and 723 and 1,080 underwent a percutaneous or surgical biopsy, respectively. Significant differences in socio-demographics were demonstrated between the biopsy types. The length of stay and hospital charges were statistically significantly different between the biopsy types where patients without biopsies had the smallest length compared to percutaneous, surgical, and combination of biopsies. Overall, the Kasai procedure was done more frequently compared to direct liver transplantation, and compared to other biopsy types, undergoing a combination of biopsies had the highest odds of undergoing either procedure. Conclusions When comparing different biopsy methods, surgical biopsies of the liver outperformed percutaneous biopsies in hospital utilization and progression to definitive treatments with the Kasai procedure. Our research indicated that vulnerable populations such as minorities or the indigent may undergo inferior treatments or infrequently undergo definitive treatment. The need for definitive diagnostic guidelines is understated in patients with biliary atresia.
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Sakaguchi H, Konishi KI, Yasuda R, Sasaki H, Yoshimaru K, Tainaka T, Fukahori S, Sanada Y, Iwama I, Shoji H, Kinoshita M, Matsuura T, Fujishiro J, Uchida H, Nio M, Yamashita Y, Mizuochi T. Serum matrix metalloproteinase-7 in biliary atresia: A Japanese multicenter study. Hepatol Res 2022; 52:479-487. [PMID: 35106887 DOI: 10.1111/hepr.13753] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 01/12/2022] [Accepted: 01/26/2022] [Indexed: 12/13/2022]
Abstract
BACKGROUND Biliary atresia (BA) is among the commonest indications for liver transplantation (LT) in children. We examined whether serum matrix metalloproteinase-7 (MMP-7) is useful for diagnosis of BA in Japanese infants, and whether serum MMP-7 concentrations before and after Kasai portoenterostomy (KP) predicted LT within a year. METHODS Subjects under 6 months old at eight pediatric centers in Japan were enrolled retrospectively, including patients with cholestasis and normal controls (NC) without liver disease. Patients with cholestasis were divided into groups representing BA versus cholestasis from other causes (non-BA). Serum samples were collected from patients with BA at diagnosis and 1 and 4 weeks after KP, as well as from non-BA and NC. RESULTS Serum MMP-7 concentrations were significantly higher in BA at diagnosis (median, 89.1 ng/ml) than in non-BA (11.0; p < 0.001) or NC (10.3; p < 0.001). Receiver operating characteristic (ROC) analysis of MMP-7 for BA versus non-BA yielded an area under the ROC curve of 0.99 (95% confidence interval, 0.96-1.00). An optimal cut-off value of 18.6 ng/ml for serum MMP-7 in diagnosing BA demonstrated sensitivity and specificity of 100% and 90%, respectively. Serum MMP-7 before and 1 week and 4 weeks after KP did not differ significantly between BA requiring only KP and BA requiring LT after KP. CONCLUSION Serum MMP-7 is a useful marker for diagnosis of BA in Japanese infants, but it could not predict LT within a year.
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Affiliation(s)
- Hirotaka Sakaguchi
- Department of Pediatrics and Child Health, Kurume University School of Medicine, Kurume, Japan
| | - Ken-Ichiro Konishi
- Department of Pediatrics and Child Health, Kurume University School of Medicine, Kurume, Japan.,Department of Pediatric Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Ryosuke Yasuda
- Department of Pediatrics and Child Health, Kurume University School of Medicine, Kurume, Japan
| | - Hideyuki Sasaki
- Department of Pediatric Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Koichiro Yoshimaru
- Department of Pediatric Surgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Takahisa Tainaka
- Department of Pediatric Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Suguru Fukahori
- Department of Pediatric Surgery, Kurume University School of Medicine, Kurume, Japan
| | - Yukihiro Sanada
- Department of Surgery, Division of Gastroenterological, General and Transplant Surgery, Jichi Medical University, Shimotsuke, Japan
| | - Itaru Iwama
- Division of Gastroenterology and Hepatology, Saitama Children's Medical Center, Saitama, Japan
| | - Hiromichi Shoji
- Department of Pediatrics, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Masahiro Kinoshita
- Department of Pediatrics and Child Health, Kurume University School of Medicine, Kurume, Japan
| | - Toshiharu Matsuura
- Department of Pediatric Surgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Jun Fujishiro
- Department of Pediatric Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Hiroo Uchida
- Department of Pediatric Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Masaki Nio
- Department of Pediatric Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Yushiro Yamashita
- Department of Pediatrics and Child Health, Kurume University School of Medicine, Kurume, Japan
| | - Tatsuki Mizuochi
- Department of Pediatrics and Child Health, Kurume University School of Medicine, Kurume, Japan
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Xiao Y, Zhou Y, Zhou K, Cai W. Targeted Metabolomics Reveals Birth Screening Biomarkers for Biliary Atresia in Dried Blood Spots. J Proteome Res 2021; 21:721-726. [PMID: 34850627 DOI: 10.1021/acs.jproteome.1c00775] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Early diagnosis and timely surgical Kasai portoenterostomy greatly improve the survival of patients with biliary atresia (BA), a neonatal cholestatic disease, which has encouraged investigators to develop newborn screening for BA. In this study, we used ultraperformance liquid chromatography-triple quadrupole mass spectrometry-based targeted metabolomics profiling to identify potential BA biomarkers in dried blood spots (DBS) collected from BA patients (n = 21) and healthy controls (n = 100). A distinctive metabolic profile comprising eight significantly differentially expressed metabolites, taurohyocholic acid (THCA), glutamic acid, 2-hydroxyglutaric acid, ketoleucine, indoleacetic acid, alpha-ketoisovaleric acid, glycocholic acid, and taurocholic acid (TCA), clearly distinguished BA infants from control neonates. Three metabolites, THCA, 2-hydroxyglutaric acid, and indoleacetic acid, were selected using linear regression and receiver operating characteristic (ROC) curve analysis and model construction. The area under the ROC curve for this model to discriminate between BA and comparison infants was 0.938 (95% confidence interval, CI: 0.874-1.000). A cutoff value of -0.336 produced a sensitivity of 90.48% (95% CI: 69.62% - 98.83%) and specificity of 92% (95% CI: 84.84% - 96.48%). In conclusion, the results suggest that metabolic markers in DBS obtained from newborns have a great potential for BA screening.
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Affiliation(s)
- Yongtao Xiao
- Department of Pediatric Surgery, Xin Hua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200092, China.,Shanghai Institute of Pediatric Research, Shanghai 200092, China.,Shanghai Key Laboratory of Pediatric Gastroenterology and Nutrition, Shanghai 200092, China
| | - Ying Zhou
- Department of Pediatric Surgery, Xin Hua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200092, China
| | - Kejun Zhou
- Human Metabolomics Institute, Inc., Shenzhen, Guangdong 518109, China
| | - Wei Cai
- Department of Pediatric Surgery, Xin Hua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200092, China.,Shanghai Institute of Pediatric Research, Shanghai 200092, China.,Shanghai Key Laboratory of Pediatric Gastroenterology and Nutrition, Shanghai 200092, China
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Zhao D, Gu S, Gong X, Li Y, Sun X, Chen Y, Deng Z, Zhang Y. Web-based calculator for biliary atresia screening in neonates and infants with cholestasis. Transl Pediatr 2021; 10:225-235. [PMID: 33708508 PMCID: PMC7944186 DOI: 10.21037/tp-20-170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
BACKGROUND Distinguishing biliary atresia from non-biliary atresia in patients with cholestasis is challenging, as these conditions have a similar clinical presentation. We developed and externally validated a screening model for biliary atresia and devised a web-based calculator for use in clinical settings. METHODS A screening model was developed based on data from 227 cholestatic infants (82 and 145 with and without biliary atresia, respectively) and validated in 234 infants (90 and 144 with and without biliary atresia, respectively) admitted to three hospitals. Variables were selected from routine examination results using the least absolute shrinkage and selection operator method and entered into a logistic regression model to construct a biliary-atresia-risk-predicting equation. Cutoff values for risk stratification were estimated using model sensitivity, derived from the receiver-operating characteristic curves. RESULTS The final screening model included seven variables (i.e., weight at admission, clay-colored stools, γ-glutamyl transpeptidase and albumin levels at admission, abnormal gallbladder, triangular cord sign, and change in total bilirubin levels). The model generated an area under the curve of 0.94 with a sensitivity of 91.46 and specificity of 86.62 in the derivation cohort. This was confirmed in the validation cohort, as we found an area under the curve of 0.93 with a sensitivity of 93.1 and specificity of 80.15. Patients were stratified into three risk groups (low-, moderate-, and high-risk groups). Biliary atresia was excluded in the low-risk group. The high-risk group showed a higher detection rate of biliary atresia compared to the stool color screening method alone. This model was integrated into a user-friendly web-based system. CONCLUSIONS The screening tool had a high predictive value and may help in decision-making by physicians at tertiary and community hospitals.
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Affiliation(s)
- Dongying Zhao
- Department of Neonatology, Xinhua Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Shengli Gu
- Department of Ultrasound, Xinhua Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Xiaohui Gong
- Department of Neonatology, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Yahui Li
- Department of Neonatology, Xinhua Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Xiaoang Sun
- Department of Pediatric Digestive Diseases, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yan Chen
- Department of Neonatology, Xinhua Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Zhaohui Deng
- Department of Pediatric Digestive Diseases, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yongjun Zhang
- Department of Neonatology, Xinhua Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
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Abstract
OBJECTIVE To elaborate on the implementation and achievements of a biliary atresia (BA) screening programme in Shenzhen. METHODS In 2015, we partnered with the government in Shenzhen and attached the stool colour card (SCC) to the health handbook for mothers and children. These handbooks have been distributed through official channels to every pregnant woman in Shenzhen since 1 January 2015. A total of 118 patients diagnosed with BA at Shenzhen Children's Hospital were enrolled and divided into two cohorts based on their date of diagnosis: cohort A before and cohort B after introduction of screening. The cohorts were compared to evaluate differences in age at diagnosis, jaundice-free rate, 2-year native liver survival rate and so on. RESULTS After the implementation of the screening programme, the age at diagnosis decreased from 81±12 to 56±15 days old (p<0.05), the incidence of postoperative complications decreased from 58.8% to 52.6% (p<0.05), the jaundice-free rate increased from 47.1% to 54.4% (p<0.05), and the 2-year native liver survival rate increased from 44.4% to 52.6% (p<0.05). The percentage of patients who underwent surgery increased from 68.0% to 83.8% (p<0.05). CONCLUSION In Shenzhen, our screening programme led to earlier diagnoses and better prognoses. The latter resulted in an increased willingness to undergo the Kasai procedure. Through a hospital and government collaboration, this programme exerted a considerable influence, and guardians observed benefits with only a small cost of implementation. Our results may eventually help promote the widespread use of the SCC across the whole country.
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Affiliation(s)
| | - Yongqin Ye
- Department of General Surgery, Shenzhen Children's Hospital, Shenzhen, Guangdong, China
| | - Bin Wang
- Department of General Surgery, Shenzhen Children's Hospital, Shenzhen, Guangdong, China
| | - Lihui Zhang
- Department of Traditional Chinese Medicine, Shenzhen Children's Hospital, Shenzhen, Guangdong, China
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12
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Gou Q, Chen Y, Yu C, Jia J, Feng J, Gao W, Zhu Z, Tang W, Tou J, Bian H, Wang B, Li Y, Li L, Ren H, Wu Y, Zhan J. Biliary atresia in twins'population: a retrospective multicenter study in mainland China. Pediatr Surg Int 2020; 36:711-718. [PMID: 32367198 DOI: 10.1007/s00383-020-04662-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/23/2020] [Indexed: 11/29/2022]
Abstract
AIM We evaluated the demographic of biliary atresia (BA) children from twins family and aimed to investigated what it can add to the twins' literature and our understanding of the disease. METHODS This study contains 11 medical centers in mainland China and the medical record of twins with BA was retrospectively analyzed from January 2012 to December 2018. Follow-up was carried out by out-patient review and questionnaire. RESULTS The study included 19 twin pairs in whom there was discordance for BA. Sixteen (84.2%) affected twin underwent Kasai Procedure (KP); median age at KP was 78 (49-168) days. There were ten affected twins that became jaundice-free at 3 months post-KP, and eight occurred with different degrees of cholangitis post-KP. Six affected twins received Liver Transplantation (LT) successfully. The 2 year native liver survival rate and the 2 year overall survival rate of affected twins were 61.1 and 94.4%, respectively. There were three affected monozygotic (MZ) twins and one healthy co-twin with BA-associated congenital malformations, all of which were cardiac malformations. The number of virus infection of affected MZ twins was significantly more (p = 0.04) than affected dizygotic (DZ) twin. CONCLUSIONS Discordance for BA in 19 pairs of twins supported that BA may be related to genetic phenotype or penetrance. The difference in genetic background between MZ and DZ affects the susceptibility of the host to virus infection. High acceptance of KP (84.2%) in our study implied a high motivation for treatment for twins with BA. Delays of KP (78 days) in affected twin may be related to the postnatal gradual onset and the late diagnosis.
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Affiliation(s)
- Qingyun Gou
- Graduate College, Tianjin Medical University, Tianjin, 300070, China.,Department of General Surgery, Tianjin Children's Hospital, LongYan Road 238, Beichen District, Tianjin, 300134, China
| | - Yang Chen
- Department of Center for Reproductive Medicine, Center for Prenatal Diagnosis, First Hospital of Jilin University, Changchun, 130021, China
| | - Chen Yu
- Department of Neonatal Surgery, Anhui Province Children's Hospital, Hefei, 230000, China
| | - Jinfu Jia
- Graduate College, Tianjin Medical University, Tianjin, 300070, China.,Department of General Surgery, Tianjin Children's Hospital, LongYan Road 238, Beichen District, Tianjin, 300134, China
| | - Jiexiong Feng
- Department of Pediatric Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Wei Gao
- Department of General Surgery, Tianjin First Central Hospital, Tianjin, 300192, China
| | - Zhijun Zhu
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, China
| | - Weibing Tang
- Department of Pediatric Surgery, Children's Hospital of Nanjing Medical University, Nanjing, 210008, China
| | - Jinfa Tou
- Department of Neonatal Surgery, Children's Hospital, School of Medicine, Zhejiang University, Zhejiang, 310003, China
| | - Hongqiang Bian
- Department General of Surgery, Wuhan Children's Hospital, Wuhan, 430030, China
| | - Bin Wang
- Department of Surgery, Shenzhen Children's Hospital, Shenzhen, 518026, China
| | - Yingchao Li
- Department of Surgery, Second Hospital of Hebei Medical University, Shijiazhuang, 050000, China
| | - Le Li
- Department of Surgery, Guangzhou Women and Children's Medical Center, Guangzhou, 511440, China
| | - Hongxia Ren
- Department of Neonatal Surgery, Children's Hospital of Shanxi, Taiyuan, 030013, China
| | - Yurui Wu
- Department of Thoracic and Oncological Surgery, Qilu Children's Hospital of Shandong University, Jinan, 250022, China
| | - Jianghua Zhan
- Department of General Surgery, Tianjin Children's Hospital, LongYan Road 238, Beichen District, Tianjin, 300134, China.
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Harpavat S, Garcia-Prats JA, Anaya C, Brandt ML, Lupo PJ, Finegold MJ, Obuobi A, ElHennawy AA, Jarriel WS, Shneider BL. Diagnostic Yield of Newborn Screening for Biliary Atresia Using Direct or Conjugated Bilirubin Measurements. JAMA 2020; 323:1141-1150. [PMID: 32207797 PMCID: PMC7093763 DOI: 10.1001/jama.2020.0837] [Citation(s) in RCA: 71] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
IMPORTANCE Treating biliary atresia in newborns earlier can delay or prevent the need for liver transplant; however, treatment typically occurs later because biliary atresia is difficult to detect during its early stages. OBJECTIVE To determine the diagnostic yield of newborn screening for biliary atresia with direct or conjugated bilirubin measurements and to evaluate the association of screening implementation with clinical outcomes. DESIGN, SETTING, AND PARTICIPANTS A cross-sectional screening study of 124 385 infants born at 14 Texas hospitals between January 2015 and June 2018; and a pre-post study of 43 infants who underwent the Kasai portoenterostomy as treatment for biliary atresia at the region's largest pediatric hepatology center before (January 2008-June 2011) or after (January 2015-June 2018) screening implementation. Final follow-up occurred on July 15, 2019. EXPOSURES Two-stage screening with direct or conjugated bilirubin measurements. In stage 1, all newborns were tested within the first 60 hours of life, with a positive screening result defined as bilirubin levels exceeding derived 95th percentile reference intervals. In stage 2, infants who had a positive screening result in stage 1 were retested at or before the 2-week well-child visit, with a positive screening result defined as bilirubin levels greater than the stage 1 result or greater than 1 mg/dL. MAIN OUTCOMES AND MEASURES The primary outcomes of the screening study were sensitivity, specificity, positive predictive value, and negative predictive value based on infants testing positive in both stages. The reference standard was biliary atresia diagnosed at the region's pediatric hepatology centers. The primary outcome of the pre-post study was the age infants underwent the Kasai portoenterostomy for treatment of biliary atresia. RESULTS Of 124 385 newborns in the screening study, 49.2% were female, 87.6% were of term gestational age, 70.0% were white, and 48.1% were Hispanic. Screening identified the 7 known infants with biliary atresia with a sensitivity of 100% (95% CI, 56.1%-100.0%), a specificity of 99.9% (95% CI, 99.9%-99.9%), a positive predictive value of 5.9% (95% CI, 2.6%-12.2%), and a negative predictive value of 100.0% (95% CI, 100.0%-100.0%). In the pre-post study, 24 infants were treated before screening implementation and 19 infants were treated after screening implementation (including 6 of 7 from the screening study, 7 from screening at nonstudy hospitals, and 6 from referrals because of clinical symptoms). The age infants underwent the Kasai portoenterostomy was significantly younger after screening was implemented (mean age, 56 days [SD, 19 days] before screening implementation vs 36 days [SD, 22 days] after screening implementation; between-group difference, 19 days [95% CI, 7-32 days]; P = .004). CONCLUSIONS AND RELEVANCE Newborn screening with direct or conjugated bilirubin measurements detected all known infants with biliary atresia in the study population, although the 95% CI around the sensitivity estimate was wide and the study design did not ensure complete ascertainment of false-negative results. Research is needed in larger populations to obtain more precise estimates of diagnostic yield and to better understand the clinical outcomes and cost-effectiveness of this screening approach.
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Affiliation(s)
- Sanjiv Harpavat
- Division of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Baylor College of Medicine and Texas Children’s Hospital, Houston
| | - Joseph A. Garcia-Prats
- Division of Neonatology, Department of Pediatrics, Baylor College of Medicine and Texas Children’s Hospital, Houston
| | - Carlos Anaya
- University of Texas Rio Grande Valley School of Medicine and Doctors Hospital at Renaissance, Edinburg
| | - Mary L. Brandt
- Department of Surgery, Baylor College of Medicine and Texas Children’s Hospital, Houston
| | - Philip J. Lupo
- Division of Hematology-Oncology, Department of Pediatrics, Baylor College of Medicine and Texas Children’s Hospital, Houston
| | | | - Alice Obuobi
- Division of Neonatology, Department of Pediatrics, Baylor College of Medicine and Texas Children’s Hospital, Houston
| | - Adel A. ElHennawy
- Division of Neonatology, Department of Pediatrics, Baylor College of Medicine and Texas Children’s Hospital, Houston
| | | | - Benjamin L. Shneider
- Division of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Baylor College of Medicine and Texas Children’s Hospital, Houston
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Du M, Wang J, Tang Y, Jiang J, Chen G, Huang Y, Shen Z, Dong R, Zheng S. Evaluation of Perioperative Complications in the Management of Biliary Atresia. Front Pediatr 2020; 8:460. [PMID: 33014917 PMCID: PMC7493688 DOI: 10.3389/fped.2020.00460] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 06/30/2020] [Indexed: 11/13/2022] Open
Abstract
Purpose: To analyze the influence of perioperative complications in the management of biliary atresia (BA). Methods: A retrospective study was performed using a total of 422 BA patients who underwent Kasai portoenterostomy (KPE) in a single institution between February 2016 and May 2017. Data on patients' clinical characteristics, laboratory examinations, perioperative complications, and outcomes were collected. Unpaired two-tailed t-test and χ2 test were employed for the comparison between BA patients with and without perioperative complications. Cox regression analysis was used to screen the risk factors for 2-years NLS in BA, and their influence on the 2-years NLS was analyzed using Kaplan-Meier survival analysis as well as the log-rank test. Results: The incidence of perioperative complications, 6-months jaundice clearance (JC) and 2-years native liver survival (NLS) rate were 60.4, 59.5, and 56.6%, respectively. Patients with perioperative complications had lower serum albumin (ALB) level, but higher aspartate aminotransferase-to-platelet ratio index (APRI) and international normalized ratio (INR) levels when compared with those without perioperative complications (ALB, P < 0.05; APRI, P < 0.01; INR, P < 0.05). Moreover, perioperative complications were correlated with glucocorticoid administration (P = 0.002). Univariate Cox regression analysis showed no relationship between perioperative complications and 2-years NLS (P > 0.05). However, multivariate Cox regression analysis indicated 6-months JC was an independent protective factor for 2-years NLS [P < 0.0001, hazard ratio (HR) = 0.074, 95% confidence interval = 0.05-0.11], and concordance index of this prediction model including age, weight, APRI, glucocorticoid, and 6-months JC was 0.811. Conclusion: Although perioperative complication is common during and after KPE, it had no influence on the prognosis of BA. However, assessment of the serum level of total bilirubin after KPE may serve as an important predictor for the outcome in BA.
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Affiliation(s)
- Min Du
- Department of Pediatric Surgery, Children's Hospital of Fudan University, and Shanghai Key Laboratory of Birth Defect, Shanghai, China
| | - Junfeng Wang
- Department of Pediatric Surgery, Children's Hospital of Fudan University, and Shanghai Key Laboratory of Birth Defect, Shanghai, China
| | - Yue Tang
- Department of Pediatric Surgery, Children's Hospital of Fudan University, and Shanghai Key Laboratory of Birth Defect, Shanghai, China
| | - Jingying Jiang
- Department of Pediatric Surgery, Children's Hospital of Fudan University, and Shanghai Key Laboratory of Birth Defect, Shanghai, China
| | - Gong Chen
- Department of Pediatric Surgery, Children's Hospital of Fudan University, and Shanghai Key Laboratory of Birth Defect, Shanghai, China
| | - Yanlei Huang
- Department of Pediatric Surgery, Children's Hospital of Fudan University, and Shanghai Key Laboratory of Birth Defect, Shanghai, China
| | - Zhen Shen
- Department of Pediatric Surgery, Children's Hospital of Fudan University, and Shanghai Key Laboratory of Birth Defect, Shanghai, China
| | - Rui Dong
- Department of Pediatric Surgery, Children's Hospital of Fudan University, and Shanghai Key Laboratory of Birth Defect, Shanghai, China
| | - Shan Zheng
- Department of Pediatric Surgery, Children's Hospital of Fudan University, and Shanghai Key Laboratory of Birth Defect, Shanghai, China
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15
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Abstract
OBJECTIVES This study analyses the prognosis of biliary atresia (BA) in France since 1986, when both Kasai operation (KOp) and liver transplantation (LT) became widely available. METHODS The charts of all patients diagnosed with BA born between 1986 and 2015 and living in France were reviewed. RESULTS A total of 1428 patients were included; 1340 (94%) underwent KOp. Total clearance of jaundice (total bilirubin ≤20 μmol/L) was documented in 516 patients (39%). Age at KOp (median 59 days, range 6-199) was stable over time. Survival with native liver after KOp was 41%, 35%, 26%, and 22% at 5, 10, 20, and 30 years, stable in the 4 cohorts. 25-year survival with native liver was 38%, 27%, 22%, and 19% in patients operated in the first, second, third month of life or later, respectively (P = 0.0001). Center caseloads had a significant impact on results in the 1986 to 1996 cohort only. 16%, 7%, 7%, and 8% of patients died without LT in the 4 cohorts (P = 0.0001). A total of 753 patients (55%) underwent LT. Patient survival after LT was 79% at 28 years. Five-year patient survival after LT was 76%, 91%, 88%, and 92% in cohorts 1 to 4, respectively (P < 0.0001). Actual BA patient survival (from diagnosis) was 81%. Five-year BA patient survival was 72%, 88%, 87%, and 87% in cohorts 1986 to 1996, 1997 to 2002, 2003 to 2009, and 2010 to 2015, respectively (P < 0.0001). CONCLUSIONS In France, 87% of patients with BA survive nowadays and 22% reach the age of 30 years without transplantation. Improvement of BA prognosis is mainly due to reduced mortality before LT and better outcomes after LT.
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Chen MC, Chen JH, Chen Y, Tsai YH, Lee CH. Low and decreased prevalence of congenital abdominal wall defect in Taiwan. J Pediatr Surg 2019; 54:1958-1964. [PMID: 30717985 DOI: 10.1016/j.jpedsurg.2018.11.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Revised: 11/07/2018] [Accepted: 11/09/2018] [Indexed: 11/26/2022]
Abstract
PURPOSE This study aims to identify the prevalence of Congenital abdominal wall defects (AWD), hospital outcomes, and related congenital abnormalities in Taiwan by using the National Health Insurance Research Database (NHIRD). MATERIALS AND METHODS From 1998 through 2013, all pediatric patients with AWD were collected via ICD-9-CM diagnostic code 756.7x ("congenital anomalies of abdominal wall") or procedure codes (54.71, 54.72 for Gastroschisis repair (GS-repair); 54.63, 53.41, 53.49 for other abdominal wall repair (O-AWD)) recoded in NHIRD. We used public national birth data for calculating the prevalence. We used CDC/BPA coding rubrics to identify accompanying congenital abnormalities. RESULTS A total 594 babies with AWD, including 179 patients in GS-repair group and 326 patients in O-AWD-repair group, are identified with 113.5 months median followed-up. The overall prevalence for AWD was 1.65 in 10,000 births and decreased over time. The prevalences of GS-repaired and O-AWD-repaired are 0.50 and 0.90 in 10,000 births. The 1-year-mortality rates of GS-repair and O-AWD-repair are 6.15% and 7.23%. 24.58% GS-repair patients and 30.06% O-AWD-repair patients have congenital abnormalities. 8.38% GS-repair patients and 6.44% O-AWD-repair patients received the following groin hernia-repair procedures. CONCLUSION Our results showed that the prevalence of AWD was low and decreased over time in Taiwan. LEVEL OF EVIDENCE Level II: Prognosis Study, Retrospective study.
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Affiliation(s)
- Ming-Chun Chen
- Department of Pediatrics, Buddhist Tzu Chi General Hospital, Hualien, Taiwan; School of Medicine, Tzu Chi University, Hualien, Taiwan
| | - Jian-Han Chen
- Department of General Surgery, E-Da Hospital, Kaohsiung, Taiwan; School of Medicine, I-Shou University, Kaohsiung, Taiwan
| | - Yun Chen
- Department of Surgery, Far Eastern Memorial Hospital, Pan-Chiao, New Taipei, Taiwan; Department of Chemical Engineering and Materials Science, Yuan Ze University, Chung-Li, Taoyuan, Taiwan
| | - Ya-Hui Tsai
- Department of Surgery, Far Eastern Memorial Hospital, Pan-Chiao, New Taipei, Taiwan; Department of Chemical Engineering and Materials Science, Yuan Ze University, Chung-Li, Taoyuan, Taiwan
| | - Cheng-Hung Lee
- Department of General Surgery, Buddhist Dalin Tzu Chi Hospital, Chia-Yi, Taiwan; School of Medicine, Tzu Chi University, Hualien, Taiwan.
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Wang Y, Zhang Y, Wang H, Wang T, Xia S, Chen W, Li B. Learning Curve Analysis of Open Kasai Portoenterostomy for Biliary Atresia. J Surg Res 2019; 239:38-43. [PMID: 30798170 DOI: 10.1016/j.jss.2019.01.029] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 12/10/2018] [Accepted: 01/10/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND Open Kasai portoenterostomy (KPE) remains the mainstay of treatment for biliary atresia (BA) even in the era of minimally invasive surgery and is generally considered to be technically challenging. This study describes the learning curve (LC) of open KPE and its effect on outcomes. MATERIALS AND METHODS In our center, the caseload of BA was relatively low with average annual caseload below five in the past, and open KPE was started in the early 2000s. This study retrospectively enrolled the first 35 consecutive children undergoing open KPE for BA by the same surgeon in our center between June 2003 and April 2014. The LC was evaluated using the cumulative sum (CUSUM) method for operative time (OT). RESULTS The CUSUM LC of OT, which peaked at the 23rd case, was best modeled as a second-order polynomial with equation CUSUM (min) = -0.8851 × case number2 + 33.54 × case number -45.978 (R2 = 0.7287). The LC consisted of two distinct phases: phase 1 (the initial 23 cases), representing the initial learning phase and phase 2 (the remaining 12 cases), representing acquisition of technical competency. Preoperative parameters were comparable between the two phases (each P > 0.05). Of note, OT and estimated blood loss significantly decreased in phase 2 compared with phase 1 (P < 0.001; P < 0.001, respectively). Furthermore, the rates of early jaundice clearance and 2-y native liver survival significantly increased in phase 2 (P = 0.032; P = 0.034, respectively). CONCLUSIONS The two phases identified by CUSUM analysis of OT represents characteristic stages of LC for open KPE of the surgeon in our center. It is possible for surgeons to achieve competency of this demanding technique in centers with relatively low caseload of BA and late start of KPE.
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Affiliation(s)
- Yujiao Wang
- Department of Pediatric Surgery, Huai'an Women and Children's Hospital, Huai'an, Jiang Su, China.
| | - Yuanyuan Zhang
- Department of Pediatric Surgery, Huai'an Women and Children's Hospital, Huai'an, Jiang Su, China
| | - Hui Wang
- Department of Public Health, Huai'an Women and Children's Hospital, Huai'an, Jiang Su, China
| | - Ting Wang
- Department of Pediatric Surgery, Huai'an Women and Children's Hospital, Huai'an, Jiang Su, China
| | - Shunlin Xia
- Department of Pediatric Surgery, Huai'an Women and Children's Hospital, Huai'an, Jiang Su, China
| | - Weibing Chen
- Department of Pediatric Surgery, Huai'an Women and Children's Hospital, Huai'an, Jiang Su, China
| | - Bing Li
- Department of Pediatric Surgery, Huai'an Women and Children's Hospital, Huai'an, Jiang Su, China.
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Yang L, Zhou Y, Xu P, Mourya R, Lei H, Cao G, Xiong X, Xu H, Duan X, Wang N, Fei L, Chang X, Zhang X, Jiang M, Bezerra JA, Tang S. Diagnostic Accuracy of Serum Matrix Metalloproteinase-7 for Biliary Atresia. Hepatology 2018; 68:2069-2077. [PMID: 30153340 PMCID: PMC6519383 DOI: 10.1002/hep.30234] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Accepted: 08/10/2018] [Indexed: 02/02/2023]
Abstract
The diagnosis of biliary atresia (BA) remains a clinical challenge because affected infants have signs, symptoms, and serum liver biochemistry that are also seen in those with other causes of neonatal cholestasis (non-BA). However, an early diagnosis and prompt surgical treatment are required to improve clinical outcome. Recently, the relative abundance of serum matrix metalloproteinase-7 (MMP-7) was suggested to have discriminatory features for infants with BA. To test the hypothesis that elevated serum concentration of MMP-7 is highly diagnostic for BA, we determined the normal serum concentration of MMP-7 in healthy control infants, and then in 135 consecutive infants being evaluated for cholestasis. The median concentration for MMP-7 was 2.86 ng/mL (interquartile range, IQR: 1.32-5.32) in normal controls, 11.47 ng/mL (IQR: 8.54-24.55) for non-BA, and 121.1 ng/mL (IQR: 85.42-224.4) for BA (P < 0.0001). The area under the curve of MMP-7 for the diagnosis of BA was 0.9900 with a cutoff value of 52.85 ng/mL; the diagnostic sensitivity and specificity were 98.67% and 95.00%, respectively, with a negative predictive value of 98.28%. Conclusion: Serum MMP-7 assay has high sensitivity and specificity to differentiate BA from other neonatal cholestasis, and may be a reliable biomarker for BA.
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Affiliation(s)
- Li Yang
- Department of Pediatric SurgeryUnion Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhanChina
- Division of Gastroenterology, Hepatology and NutritionCincinnati Children’s Hospital Medical CenterCincinnatiOH
| | - Ying Zhou
- Department of Pediatric SurgeryUnion Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhanChina
| | - Pei‐pei Xu
- Department of Pediatric SurgeryUnion Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhanChina
| | - Reena Mourya
- Division of Gastroenterology, Hepatology and NutritionCincinnati Children’s Hospital Medical CenterCincinnatiOH
| | - Hai‐yan Lei
- Department of Pediatric SurgeryWuhan Children’s Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhanChina
| | - Guo‐qing Cao
- Department of Pediatric SurgeryUnion Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhanChina
| | - Xiao‐li Xiong
- Department of Traditional Chinese MedicineWuhan Children’s Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhanChina
| | - Hui Xu
- Department of PediatricsHubei Women and Children’s HospitalWuhanChina
| | - Xu‐fei Duan
- Department of Pediatric SurgeryWuhan Children’s Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhanChina
| | - Na Wang
- Department of PediatricsUnion Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhanChina
| | - Lin Fei
- Division of Biostatistics and EpidemiologyCincinnati Children’s Hospital Medical CenterCincinnatiOH
| | - Xiao‐pan Chang
- Department of Pediatric SurgeryUnion Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhanChina
| | - Xi Zhang
- Department of Pediatric SurgeryUnion Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhanChina
| | - Meng Jiang
- Department of Pediatric SurgeryUnion Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhanChina
| | - Jorge A. Bezerra
- Division of Gastroenterology, Hepatology and NutritionCincinnati Children’s Hospital Medical CenterCincinnatiOH
| | - Shao‐tao Tang
- Department of Pediatric SurgeryUnion Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhanChina
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20
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Chen XQ, Tan WH, Jiang FF, Chen X. [A clinical analysis of children with invasive pulmonary fungal infections after biliary atresia surgery]. ZHONGGUO DANG DAI ER KE ZA ZHI = CHINESE JOURNAL OF CONTEMPORARY PEDIATRICS 2018; 20:121-124. [PMID: 29429460 PMCID: PMC7389236 DOI: 10.7499/j.issn.1008-8830.2018.02.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 10/29/2017] [Accepted: 12/25/2017] [Indexed: 06/08/2023]
Abstract
OBJECTIVE To investigate the clinical features of invasive pulmonary fungal infections (IPFIs) after biliary atresia (BA) surgery and related risk factors. METHODS A retrospective analysis was performed for the clinical data of 49 children with IPFIs after BA surgery, including clinical features, lung imaging findings, and pathogenic features. The risk factors for IPFIs after BA surgery were also analyzed. RESULTS The most common pathogens of IPFIs after BA surgery was Candida albicans (17 strains, 45%), followed by Candida tropicalis (7 strains, 18%), Aspergillus (6 strains, 16%), Candida krusei (3 strains, 8%), Candida glabrata (3 strains, 8%), and Candida parapsilosis (2 strains, 5%). Major clinical manifestations included pyrexia, cough, and shortness of breath, as well as dyspnea in severe cases; the incidence rate of shortness of breath reached 78%, and 35% of all children had no obvious rale. The multivariate logistic regression analysis showed that age at the time of surgery, time of glucocorticoid application, cumulative time of the application of broad-spectrum antibiotics, and recurrent cholangitis were major risk factors for IPFIs after BA surgery. CONCLUSIONS The three most common pathogens of IPFIs after BA surgery are Candida albicans, Candida tropicalis, and Aspergillus. It is important to perform surgery as early as possible, avoid recurrent cholangitis, and shorten the course of the treatment with broad-spectrum antibiotics and glucocorticoids for decreasing the risk of IPFIs.
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Affiliation(s)
- Xiu-Qi Chen
- Department of Pediatrics, First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China.
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Chen XQ, Tan WH, Jiang FF, Chen X. [A clinical analysis of children with invasive pulmonary fungal infections after biliary atresia surgery]. ZHONGGUO DANG DAI ER KE ZA ZHI = CHINESE JOURNAL OF CONTEMPORARY PEDIATRICS 2018; 20:121-124. [PMID: 29429460 PMCID: PMC7389236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 10/29/2017] [Accepted: 12/25/2017] [Indexed: 11/04/2023]
Abstract
OBJECTIVE To investigate the clinical features of invasive pulmonary fungal infections (IPFIs) after biliary atresia (BA) surgery and related risk factors. METHODS A retrospective analysis was performed for the clinical data of 49 children with IPFIs after BA surgery, including clinical features, lung imaging findings, and pathogenic features. The risk factors for IPFIs after BA surgery were also analyzed. RESULTS The most common pathogens of IPFIs after BA surgery was Candida albicans (17 strains, 45%), followed by Candida tropicalis (7 strains, 18%), Aspergillus (6 strains, 16%), Candida krusei (3 strains, 8%), Candida glabrata (3 strains, 8%), and Candida parapsilosis (2 strains, 5%). Major clinical manifestations included pyrexia, cough, and shortness of breath, as well as dyspnea in severe cases; the incidence rate of shortness of breath reached 78%, and 35% of all children had no obvious rale. The multivariate logistic regression analysis showed that age at the time of surgery, time of glucocorticoid application, cumulative time of the application of broad-spectrum antibiotics, and recurrent cholangitis were major risk factors for IPFIs after BA surgery. CONCLUSIONS The three most common pathogens of IPFIs after BA surgery are Candida albicans, Candida tropicalis, and Aspergillus. It is important to perform surgery as early as possible, avoid recurrent cholangitis, and shorten the course of the treatment with broad-spectrum antibiotics and glucocorticoids for decreasing the risk of IPFIs.
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Affiliation(s)
- Xiu-Qi Chen
- Department of Pediatrics, First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China.
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22
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Kilgore A, Mack CL. Update on investigations pertaining to the pathogenesis of biliary atresia. Pediatr Surg Int 2017; 33:1233-1241. [PMID: 29063959 PMCID: PMC5894874 DOI: 10.1007/s00383-017-4172-6] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/05/2017] [Indexed: 12/14/2022]
Abstract
Biliary atresia is a devastating biliary disease of neonates that results in liver transplantation for the vast majority. The etiology of biliary atresia is unknown and is likely multifactorial, with components of genetic predisposition, environmental trigger and autoimmunity contributing to disease pathogenesis. This review highlights recent work related to investigations of disease pathogenesis in biliary atresia.
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Affiliation(s)
- Alexandra Kilgore
- Division of Pediatric Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, University of Colorado School of Medicine, Digestive Health Institute, Children’s Hospital Colorado, Aurora, CO 80045, USA
| | - Cara L. Mack
- Division of Pediatric Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, University of Colorado School of Medicine, Digestive Health Institute, Children’s Hospital Colorado, Aurora, CO 80045, USA
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23
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Abstract
Due to a peculiar age-dependent increased susceptibility, neonatal cholestasis affects the liver of approximately 1 in every 2500 term infants. A high index of suspicion is the key to an early diagnosis, and to implement timely, often life-saving treatments. Even when specific treatment is not available or curative, prompt medical management and optimization of nutrition are of paramount importance to survival and avoidance of complications. Areas covered: The present article will prominently focus on a series of newer diagnostic and therapeutic options of cholestasis in neonates and infants blended with consolidated established paradigms. The overview of strategies for the management reported here is based on a systematic literature search published in English using accessible databases (PubMed, MEDLINE) with the keywords biliary atresia, choleretics and neonatal cholestasis. References lists from retrieved articles were also reviewed. Expert commentary: A large number of uncommon and rare hepatobiliary disorders may present with cholestasis during the neonatal and infantile period. Potentially life-saving disease-specific pharmacological and surgical therapeutic approaches are currently available. Advances in hepatobiliary transport mechanisms have started clarifying fundamental aspects of inherited and acquired cholestasis, laying the foundation for the development of possibly more effective specific therapies.
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Affiliation(s)
- Andrea Catzola
- a Department of Medicine, Surgery and Dentistry "Scuola Medica Salernitana", Pediatrics Section , University of Salerno , Salerno , Italy
| | - Pietro Vajro
- a Department of Medicine, Surgery and Dentistry "Scuola Medica Salernitana", Pediatrics Section , University of Salerno , Salerno , Italy
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24
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Objective Assessment of Stool Color in Neonates with Prolonged Jaundice. Indian J Pediatr 2017; 84:415-416. [PMID: 28116545 DOI: 10.1007/s12098-016-2287-8] [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: 11/17/2016] [Accepted: 12/26/2016] [Indexed: 02/07/2023]
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25
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Chen CM, Chen SCC, Yang HY, Yang ST, Wang CM. Hospitalization and mortality due to hepatitis A in Taiwan: a 15-year nationwide cohort study. J Viral Hepat 2016; 23:940-945. [PMID: 27386835 DOI: 10.1111/jvh.12564] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2015] [Accepted: 06/07/2016] [Indexed: 12/22/2022]
Abstract
Hepatitis A virus (HAV) is the most common food-borne hepatitis in the world. The study objectives were (i) to describe the epidemiology of HAV-related hospitalizations during 1997-2011 in Taiwan, (ii) to examine the age effect on the length of stay (LOS) in hospital and (iii) to study the factors associated with death. The hospitalized cases were identified from the Taiwan National Health Insurance Research Database between 1997 and 2011 by ICD-9-CM code of 070.0/070.1. Patient sex, birthday, dates of hospitalization and death were analysed. A total of 3990 HAV-hospitalized cases, males 2467 (62%), were identified. The LOS increased as patients' age increased. The overall mortality rate was 16.8 per 1000 hospitalizations. Males had significantly higher case fatality rate than females (20.7 vs 10.5 per 1000 cases). The adjusted odds ratio (aOR) for death rose by age and increased rapidly over 40 years of age. The aOR and 95% confidence interval [95%CI] for aged 40-59 years and aged over 60 years were 7.89 (1.06-58.98) and 14.88 (2.02-109.40) compared to aged 0-19 years, respectively. Patients with chronic liver disease and cirrhosis had significantly higher risk of death (aOR=1.03 [1.01-1.04]), compared to those without liver disease. However, patients with liver disease, but no cirrhosis did not have higher risk of death (aOR=1.00 [0.99-1.01]). The aOR [95%CI] for LOS >9 day was 3.26 (1.96-5.40) compared to cases with LOS ≤9 days. Male sex, age over 40 years, cirrhotic liver and long LOS are significant factors associated with death in HAV-hospitalized cases.
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Affiliation(s)
- C-M Chen
- Department of Pediatrics, St. Joseph Catholic Hospital, Yunlin, Taiwan.,Department of Pediatrics, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chiayi, Taiwan
| | - S C-C Chen
- Department of Pediatrics, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chiayi, Taiwan. .,Heng-Chun Christian Hospital, Pingtung, Taiwan. .,Department of Pediatrics, School of Medicine, Taipei Medical University, Taipei, Taiwan.
| | - H-Y Yang
- Department of Medical Research, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chiayi, Taiwan
| | - S-T Yang
- Department of Pediatrics, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chiayi, Taiwan
| | - C-M Wang
- Department of Pediatrics, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chiayi, Taiwan.,College of Nursing, Chang Gung University of Science and Technology, Chiayi, Taiwan
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Lee M, Chen SCC, Yang HY, Huang JH, Yeung CY, Lee HC. Infant Stool Color Card Screening Helps Reduce the Hospitalization Rate and Mortality of Biliary Atresia: A 14-Year Nationwide Cohort Study in Taiwan. Medicine (Baltimore) 2016; 95:e3166. [PMID: 27015203 PMCID: PMC4998398 DOI: 10.1097/md.0000000000003166] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Biliary atresia (BA) is a significant liver disease in children. Since 2004, Taiwan has implemented a national screening program that uses an infant stool color card (SCC) for the early detection of BA. The purpose of this study was to examine the outcomes of BA cases before and after the launch of this screening program. The objectives of this study were to evaluate the rates of hospitalization, liver transplantation (LT), and mortality of BA cases before and after the program, and to examine the association between the hospitalization rate and survival outcomes.This was a population-based cohort study. BA cases born during 1997 to 2010 were identified from the Taiwan National Health Insurance Research Database. Sex, birth date, hospitalization date, LT, and death data were collected and analyzed. The hospitalization rate by 2 years of age (Hosp/2yr) was calculated to evaluate its association with the outcomes of LT or death.Among 513 total BA cases, 457 (89%) underwent the Kasai procedure. Of these, the Hosp/2yr was significantly reduced from 6.0 to 6.9/case in the earlier cohort (1997-2004) to 4.9 to 5.3/case in the later cohort (2005-2010). This hospitalization rate reduction was followed by a reduction in mortality from 26.2% to 15.9% after 2006. The Cox proportional hazards model showed a significant increase in the risk for both LT (hazard ratio [HR] = 1.14, 95% confidence interval [CI] = 1.10-1.18) and death (HR = 1.05, 95% CI = 1.01-1.08) for each additional hospitalization. A multivariate logistic regression model found that cases with a Hosp/2yr >6 times had a significantly higher risk for both LT (adjusted odds ratio [aOR] = 4.35, 95% CI = 2.82-6.73) and death (aOR = 1.75, 95% CI = 1.17-2.62).The hospitalization and mortality rates of BA cases in Taiwan were significantly and coincidentally reduced after the launch of the SCC screening program. There was a significant association between the hospitalization rate and final outcomes of LT or death. The SCC screening program can help reduce the hospitalization rate and mortality of BA cases and bring great financial benefit.
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Affiliation(s)
- Min Lee
- From the Department of Pediatrics (ML), Taipei City Hospital, Zhongxiao Branch, Taipei City; Department of Medical Research (SC-CC, H-YY, J-HH), Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chiayi City; Department of Pediatrics (SC-CC), School of Medicine, Taipei Medical University, Taipei; Department of Pediatrics (C-YY), MacKay Children's Hospital, Taipei City; and MacKay Memorial Hospital (H-CL), Hsinchu Branch, Hsinchu City, Taiwan
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