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Waitayagitgumjon K, Poocharoen W, Trirongjitmoah S, Treeprapin K, Suttiwongsing A, Wirifai T, Trirongchitmoh C, Tangkabuanbutr P. A Multicenter Pilot Study of Biliary Atresia Screening Using Digital Stool Color Imaging. Pediatr Gastroenterol Hepatol Nutr 2024; 27:168-175. [PMID: 38818277 PMCID: PMC11134179 DOI: 10.5223/pghn.2024.27.3.168] [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] [Received: 09/25/2023] [Revised: 01/29/2024] [Accepted: 03/15/2024] [Indexed: 06/01/2024] Open
Abstract
Purpose The presence of alcoholic stool in biliary atresia (BA) patients is the basis of a stool color card (SCC), a screening tool that has led to more patients receiving Kasai portoenterostomy earlier. This study aimed to evaluate the color image processing of stool images captured using smartphones. We propose that measuring digital color parameters is a more objective method for identifying BA stools and may improve the sensitivity of BA screening. Methods A prospective study was conducted in five hospitals in Thailand between October 1, 2020, and December 31, 2021. Stools from infants presenting with jaundice, acholic stool, or dark-colored urine were photographed. Digital image color analysis was performed, and software was developed based on the color on the original SCC. Sensitivity and specificity for predicting BA stools were compared between the SCC and the software. Results Of 33 infants eligible for data collection, 19 were diagnosed with BA. Saturation and blue were two potential digital color parameters used to differentiate BA stools. The receiver operating characteristic curve was used to determine the optimum cutoff point of both values, and when saturation ≤56 or blue ≥61 was set as a threshold for detecting BA stool, high accuracy was achieved at 81.8% and 78.8%, respectively. Conclusion Digital image processing is a promising technology. With appropriate cutoff values of saturation in hue, saturation, value and blue in red, green, blue color models, BA stools can be identified, and equivocal-colored stools of non-BA patients can be differentiated with acceptable accuracy in infants presenting with jaundice.
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Affiliation(s)
| | - Wannisa Poocharoen
- Department of Surgery, Queen Sirikit National Institute of Child Health, Ratchathewi, Bangkok, Thailand
- Department of Surgery, College of Medicine, Rangsit University, Bangkok, Thailand
| | - Suchin Trirongjitmoah
- Department of Electrical and Electronics Engineering, Faculty of Engineering, Ubon Ratchathani University, Ubon Ratchathani, Thailand
| | - Kriengsak Treeprapin
- Department of Mathematics, Statistics and Computer, Faculty of Science, Ubon Ratchathani University, Ubon Ratchathani, Thailand
| | - Arada Suttiwongsing
- Department of Surgery, Chiangrai Prachanukroh Hospital, Chiang Rai, Thailand
| | - Thetiya Wirifai
- Department of Surgery, Khon Kaen Hospital, Khon Kaen, Thailand
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Identification of Hub Genes and Immune Infiltration in Pediatric Biliary Atresia by Comprehensive Bioinformatics Analysis. CHILDREN 2022; 9:children9050697. [PMID: 35626874 PMCID: PMC9140130 DOI: 10.3390/children9050697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 04/21/2022] [Accepted: 05/06/2022] [Indexed: 12/04/2022]
Abstract
Background: Biliary atresia (BA) is the leading cause of pediatric liver failure and pediatric liver transplantation worldwide. Evidence suggests that the immune system plays a central role in the pathogenesis of BA. Methods: In this work, the novel immune-related genes between BA and normal samples were investigated based on weighted gene co-expression network analysis (WGCNA) and the deconvolution algorithm of CIBERSORT. Results: Specifically, 650 DEGs were identified between the BA and normal groups. The blue module was the most positively correlated with BA containing 3274 genes. Totally, 610 overlapping BA-related genes of DEGs and WGCNA were further used to identify IRGs. Three IRGs including VCAM1, HLA-DRA, and CD74 were finally identified as the candidate biomarkers. Particularly, the CD74 biomarker was discovered for the first as a potential immune biomarker for BA. Conclusions: Possibly, these 3 IRGs might serve as candidate biomarkers and guide the individualized treatment strategies for BA patients. Our results would provide great insights for a deeper understanding of both the occurrence and the treatment of BA.
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Sex differences in surgically correctable congenital anomalies: A systematic review. J Pediatr Surg 2020; 55:811-820. [PMID: 32061363 DOI: 10.1016/j.jpedsurg.2020.01.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 01/25/2020] [Indexed: 12/17/2022]
Abstract
PURPOSE This study aims to compare the prevalence and outcomes of surgically correctable congenital anomalies between sexes. METHODS Upon registration on PROSPERO (CRD42019120165), a librarian aided in conducting a systematic review using PRISMA guidelines. The five largest relevant studies were included for each anomaly. Cumulative prevalence differences and confidence intervals were calculated, and the Cochran-Mantel-Haenszel test was performed. RESULTS Of 42,722 identified studies, 68 were included in our analysis. All included anomalies had greater than 1000 patients except duodenal atresia (n = 787) and intestinal duplication (n = 148). Males had a significantly higher prevalence than females in 10/14 anomalies (Hirschsprung's disease, omphalomesenteric duct, congenital diaphragmatic hernia, anorectal malformation, malrotation, esophageal atresia, congenital pulmonary airway malformation, intestinal atresia, omphalocele, and gastroschisis; p < 0.001). There was no difference in the prevalence of duodenal atresia or intestinal duplication between sexes (p = 0.88 and 0.65, respectively). Females had a significantly higher prevalence of biliary anomalies (atresia and choledochal cyst). CONCLUSION Our study indicates that males have higher prevalence rates of most congenital anomalies. Further investigations are required to illuminate the embryology underlying this sex distribution and whether sex influences outcomes. TYPE OF STUDY Systematic review and meta-analysis. LEVEL OF EVIDENCE Prognostic study, level II.
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4
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Friedmacher F, Ford K, Davenport M. Biliary atresia: a scientometric analysis of the global research architecture and scientific developments. JOURNAL OF HEPATO-BILIARY-PANCREATIC SCIENCES 2019; 26:201-210. [PMID: 30980482 DOI: 10.1002/jhbp.628] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Biliary atresia (BA) is a rare cholangiopathy of largely unknown etiology and unpredictable outcome. There has been an increasing number of BA-related publications, which may challenge researchers to determine their actual scientific value. This study aimed to evaluate the global research activity and developments relating to BA using a combination of scientometric methodologies and visualization tools. A comprehensive search strategy for the Web of Science™ database was designed to obtain bibliographic data on scientific BA publications for the timespan 1900-2018. Research output of countries, institutions, individual authors and collaborative networks was analyzed. Semi-qualitative research measures including citation rate and h-index were assessed. Choropleth mapping and network diagrams were used to visualize results. In total, 4,459 publications on BA were identified (88.5% in English), originating from 63 countries. The largest number was published by the USA (n = 991; 22.2%), Japan (n = 667; 15.0%) and the UK (n = 294; 6.6%). The USA combined the highest number of cooperation articles (n = 140). The most productive collaborative network was established between the USA and Canada (n = 17). Scientific papers from the UK received the highest average citation rate (16.7), whereas the USA had the highest country-specific h-index (59). Eighty-eight (2.0%) items were published under the auspices of multicenter consortiums and registries. The most productive institutions and authors were based in the USA, the UK, Japan, France, Canada and Taiwan. BA-related research has constantly been progressing, becoming more multidisciplinary but with main research endeavors concentrated in a few high-income countries. Studies into pathogenesis of BA remain uncommon, but are sorely needed to foster true scientific progress with this rare disease. Hence, international collaborative and translational research should be strengthened to allow further evolution in this field.
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Affiliation(s)
- Florian Friedmacher
- Department of Pediatric Surgery, King's College Hospital, Denmark Hill, London SE5 9RS, UK.,Department of Pediatric Surgery, The Royal London Hospital, London, UK
| | - Kathryn Ford
- Department of Pediatric Surgery, King's College Hospital, Denmark Hill, London SE5 9RS, UK.,Department of Specialist Neonatal and Pediatric Surgery, Great Ormond Street Hospital, London, UK
| | - Mark Davenport
- Department of Pediatric Surgery, King's College Hospital, Denmark Hill, London SE5 9RS, UK
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Edgerton CA, Gross M, Kasi N, Hewitt W, Edmondson S, Rohan VS, Nadig SN. "Mirror, Mirror on the Wall"… Pediatric liver transplantation in the case of situs inversus totalis with a disrupted inferior vena cava. Pediatr Transplant 2018; 22:e13218. [PMID: 29761937 DOI: 10.1111/petr.13218] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/06/2018] [Indexed: 11/30/2022]
Abstract
We present the unique case of a 15-month-old male born with biliary atresia and situs inversus totalis and disrupted inferior vena cava who underwent a successful liver transplantation. The patient had previously undergone a failed Kasai procedure and presented with persistent hyperbilirubinemia. The patient was transplanted with a left lateral segment donor having standard arterial anatomy. Technical considerations included identifying completely replaced arterial anatomy in the recipient from the superior mesenteric artery and creating a branch patch between the gastroduodenal artery and HA, anastomosing the donor left hepatic vein to confluences of the donor left, middle, and right hepatic veins, using a "lazy-S" configuration of portal vein anastomosis, and suspending the allograft to the abdominal wall. Post-operatively, his liver function tests and total bilirubin normalized and he progressed to tolerating an oral diet with tube-feed supplementation.
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Affiliation(s)
- Colston A Edgerton
- Department of Surgery, Division of Transplant Surgery, Medical University of South Carolina, Charleston, SC, USA
| | - Megan Gross
- Department of Surgery, Division of Transplant Surgery, Medical University of South Carolina, Charleston, SC, USA
| | - Nagraj Kasi
- Department of Pediatrics, Division of Transplant Surgery, Medical University of South Carolina, Charleston, SC, USA
| | - Winston Hewitt
- Department of Surgery, Division of Transplant Surgery, Mayo Clinic, Scottsdale, AZ, USA
| | - Sara Edmondson
- Department of Surgery, Division of Transplant Surgery, Medical University of South Carolina, Charleston, SC, USA
| | - Vinayak S Rohan
- Department of Surgery, Division of Transplant Surgery, Medical University of South Carolina, Charleston, SC, USA
| | - Satish N Nadig
- Department of Surgery, Division of Transplant Surgery, Medical University of South Carolina, Charleston, SC, USA.,Department of Pediatrics, Division of Transplant Surgery, Medical University of South Carolina, Charleston, SC, USA
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6
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Alobaidi R, Anton N, Cave D, Moez EK, Joffe AR. Predicting early outcomes of liver transplantation in young children: The EARLY study. World J Hepatol 2018; 10:62-72. [PMID: 29399279 PMCID: PMC5787685 DOI: 10.4254/wjh.v10.i1.62] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 12/20/2017] [Accepted: 12/29/2017] [Indexed: 02/06/2023] Open
Abstract
AIM To determine potentially modifiable predictors of early outcomes after liver transplantation in children of age < 3 years.
METHODS This study was a retrospective chart review including all consecutive children of age less than 3-years-old having had a liver transplant done at the Western Canadian referral center from June 2005 to June 2015. Pre-specified potential predictor variables and primary and secondary outcomes were recorded using standard definitions and a case report form. Associations between potential predictor variables and outcomes were determined using univariate and multiple logistic [odds ratio (OR); 95%CI] or linear (effect size, ES; 95%CI) regressions.
RESULTS There were 65 children, of mean age 11.9 (SD 7.1) mo and weight 8.5 (2.1) kg, with biliary-atresia in 40 (62%), who had a living related donor [LRD; 29 (45%)], split/reduced [21 (32%)] or whole liver graft [15 (23%)]. Outcomes after liver transplant included: ventilator-days of 12.5 (14.1); pediatric intensive care unit mortality of 5 (8%); re-operation in 33 (51%), hepatic artery thrombosis (HAT) in 12 (19%), portal vein thrombosis (PVT) in 11 (17%), and any severe complication (HAT, PVT, bile leak, bowel perforation, intraabdominal infection, retransplant, or death) in 32 (49%) patients. Predictors of the prespecified primary outcomes on multiple regression were: (1) HAT: split/reduced (OR 0.06; 0.01, 0.76; P = 0.030) or LRD (OR 0.16; 0.03, 0.95; P = 0.044) vs whole liver graft; and (2) ventilator-days: surgeon (P < 0.05), lowest antithrombin (AT) postoperative day 2-5 (ES -0.24; -0.47, -0.02; P = 0.034), and split/reduced (ES -12.5; -21.8, -3.2; P = 0.009) vs whole-liver graft. Predictors of the pre-specified secondary outcomes on multiple regression were: (1) any thrombosis: LRD (OR 0.10; 0.01, 0.71; P = 0.021) or split/reduced (OR 0.10; 0.01, 0.85; P = 0.034) vs whole liver graft, and lowest AT postoperative day 2-5 (OR 0.93; 0.87, 0.99; P = 0.038); and (2) any severe complication: surgeon (P < 0.05), lowest AT postoperative day 2-5 (OR 0.92; 0.86-0.98; P = 0.016), and split/reduced (OR 0.06; 0.01, 0.78; P = 0.032) vs whole-liver graft.
CONCLUSION In young children, whole liver graft and surgeon was associated with more complications, and higher AT postoperative day 2-5 was associated with fewer complications early after liver transplantation.
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Affiliation(s)
- Rashid Alobaidi
- Department of Pediatrics, Division of Pediatric Critical Care Medicine, University of Alberta and Stollery Children’s Hospital, Edmonton, Alberta T6G 1C9, Canada
| | - Natalie Anton
- Department of Pediatrics, Division of Pediatric Critical Care Medicine, University of Alberta and Stollery Children’s Hospital, Edmonton, Alberta T6G 1C9, Canada
| | - Dominic Cave
- Department of Pediatrics, Division of Pediatric Critical Care Medicine, University of Alberta and Stollery Children’s Hospital, Edmonton, Alberta T6G 1C9, Canada
| | - Elham Khodayari Moez
- School of Public Health, University of Alberta, Edmonton, Alberta T6G 2B7, Canada
| | - Ari R Joffe
- Department of Pediatrics, Division of Pediatric Critical Care Medicine, University of Alberta and Stollery Children’s Hospital, Edmonton, Alberta T6G 1C9, Canada
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7
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de Magnée C, Veyckemans F, Pirotte T, Menten R, Dumitriu D, Clapuyt P, Carbonez K, Barrea C, Sluysmans T, Sempoux C, Leclercq I, Zech F, Stephenne X, Reding R. Liver and systemic hemodynamics in children with cirrhosis: Impact on the surgical management in pediatric living donor liver transplantation. Liver Transpl 2017; 23:1440-1450. [PMID: 28834223 DOI: 10.1002/lt.24850] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Revised: 07/12/2017] [Accepted: 08/03/2017] [Indexed: 02/07/2023]
Abstract
Cirrhosis in adults is associated with modifications of systemic and liver hemodynamics, whereas little is known about the pediatric population. The aim of this work was to investigate whether alterations of hepatic and systemic hemodynamics were correlated with cirrhosis severity in children. The impact of hemodynamic findings on surgical management in pediatric living donor liver transplantation (LT) was evaluated. Liver and systemic hemodynamics were studied prospectively in 52 children (median age, 1 year; 33 with biliary atresia [BA]). The hemodynamics of native liver were studied preoperatively by Doppler ultrasound and intraoperatively using invasive flowmetry. Portosystemic gradient was invasively measured. Systemic hemodynamics were studied preoperatively by Doppler transthoracic echocardiography and intraoperatively by using transpulmonary thermodilution. Hemodynamic parameters were correlated with Pediatric End-Stage Liver Disease (PELD) score and the histological degree of fibrosis (collagen proportionate area [CPA]). Cirrhosis was associated with a 60% reduction of pretransplant total liver flow (n = 46; median, 36 mL/minute/100 g of liver) compared with noncirrhotic livers (n = 6; median, 86 mL/minute/100 g; P = 0.002). Total blood flow into the native liver was negatively correlated with PELD (P < 0.001) and liver CPA (P = 0.005). Median portosystemic gradient was 14.5 mm Hg in children with cirrhosis and positively correlated with PELD (P < 0.001). Portal vein (PV) hypoplasia was observed mainly in children with BA (P = 0.02). Systemic hemodynamics were not altered in our children with cirrhosis. Twenty-one children met the intraoperative criteria for PV reconstruction using a portoplasty technique during the LT procedure and had a smaller PV diameter at pretransplant Doppler ultrasound (median = 3.4 mm; P < 0.001). Cirrhosis in children appears also as a hemodynamic disease of the liver, correlated with cirrhosis severity. Surgical technique for PV reconstruction during LT was adapted accordingly. Liver Transplantation 23 1440-1450 2017 AASLD.
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Affiliation(s)
| | | | | | | | | | | | - Karlien Carbonez
- Pediatric Cardiology, Cliniques Universitaires St. Luc, Brussels, Belgium
| | - Catherine Barrea
- Pediatric Cardiology, Cliniques Universitaires St. Luc, Brussels, Belgium
| | - Thierry Sluysmans
- Pediatric Cardiology, Cliniques Universitaires St. Luc, Brussels, Belgium
| | - Christine Sempoux
- Institute of Pathology, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | | | - Francis Zech
- Institute of Experimental and Clinical Research, Université Catholique de Louvain, Brussels, Belgium
| | - Xavier Stephenne
- Pediatric Gastroenterology and Hepatology, Cliniques Universitaires St. Luc, Brussels, Belgium
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8
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Sanchez-Valle A, Kassira N, Varela VC, Radu SC, Paidas C, Kirby RS. Biliary Atresia: Epidemiology, Genetics, Clinical Update, and Public Health Perspective. Adv Pediatr 2017; 64:285-305. [PMID: 28688594 DOI: 10.1016/j.yapd.2017.03.012] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Amarilis Sanchez-Valle
- Division of Genetics and Metabolism, College of Medicine, University of South Florida, Tampa, FL, USA
| | - Noor Kassira
- Division of Pediatric Surgery, College of Medicine, University of South Florida, Tampa, FL, USA
| | - Veronica C Varela
- Department of Community and Family Health, College of Public Health, University of South Florida, Tampa, FL, USA
| | - Stephanie C Radu
- Department of Community and Family Health, College of Public Health, University of South Florida, Tampa, FL, USA
| | - Charles Paidas
- Division of Pediatric Surgery, College of Medicine, University of South Florida, Tampa, FL, USA
| | - Russell S Kirby
- Department of Community and Family Health, College of Public Health, University of South Florida, Tampa, FL, USA.
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9
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Leung D, Narang A, Minard C, Hiremath G, Goss J, Shepherd R. A 10-Year united network for organ sharing review of mortality and risk factors in young children awaiting liver transplantation. Liver Transpl 2016; 22:1584-1592. [PMID: 27541809 PMCID: PMC5083224 DOI: 10.1002/lt.24605] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Accepted: 08/04/2016] [Indexed: 12/21/2022]
Abstract
Young children < 2 years of age with chronic end-stage liver disease (YC2) are a uniquely vulnerable group listed for liver transplantation, characterized by a predominance of biliary atresia (BA). To investigate wait-list mortality, associated risk factors, and outcomes of YC2, we evaluated United Network for Organ Sharing registry data from April 2003 to March 2013 for YC2 listed for deceased donor transplant (BA = 994; other chronic liver disease [CLD] = 221). Overall, wait-list mortality among YC2 was 12.4% and posttransplant mortality was 8%, accounting for an overall postlisting mortality of 19.6%. YC2 demonstrated 12.2%, 18.7%, and 20.6% wait-list mortality by 90, 180, and 270 days, respectively. YC2 with CLD demonstrated significantly higher wait-list mortality compared with BA among YC2 (23.9% versus 9.8%; P < 0.05). Multivariate analyses revealed that listing Pediatric End-Stage Liver Disease [PELD] > 21 (hazard ratio [HR], 3.2; 95% confidence interval [CI], 1.6-6.5), lack of exception (HR, 5.8; 95% CI, 2.8-11.8), listing height < 60.6 cm (HR, 2.1; 95% CI, 1.4-3.1), listing weight > 10 kg (HR, 3.8; 95% CI, 1.5-9.2), and initial creatinine > 0.5 (HR, 6.8; 95% CI, 3.4-13.5) were independent risk factors for YC2 wait-list mortality (P < 0.005 for all). Adjusting for all variables, the risk of death among CLD patients was 2 (95% CI, 1.3-3.1) times greater than patients with BA + surgery (presumed Kasai). Furthermore, the risk of death in BA without surgery was 1.9 (95% CI, 1‐3.4) times greater than BA with presumed Kasai. Our data highlight unacceptably high wait-list and early post-liver transplant mortality in YC2 not predicted by PELD and suggest key risk factors deserving of further study in this age group. Liver Transplantation 22 1584-1592 2016 AASLD.
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Affiliation(s)
- D.H. Leung
- Department of Pediatrics, Baylor College of Medicine, Houston, TX,Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Texas Children's Hospital, Houston, TX
| | - A. Narang
- Department of Pediatrics, Baylor College of Medicine, Houston, TX
| | - C.G. Minard
- Dan L. Duncan Institute for Clinical and Translational Research, Houston, TX
| | - G. Hiremath
- Department of Pediatrics, Baylor College of Medicine, Houston, TX
| | - J.A. Goss
- Division of Abdominal Transplant Surgery, Baylor College of Medicine/Texas Children's Hospital, Houston, TX, United States
| | - R. Shepherd
- Department of Pediatrics, Baylor College of Medicine, Houston, TX,Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Texas Children's Hospital, Houston, TX
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10
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Alonso EM, Ng VL, Anand R, Anderson CD, Ekong UD, Fredericks EM, Furuya KN, Gupta NA, Lerret SM, Sundaram S, Tiao G. The SPLIT research agenda 2013. Pediatr Transplant 2013; 17:412-22. [PMID: 23718800 PMCID: PMC4157303 DOI: 10.1111/petr.12090] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/11/2013] [Indexed: 12/17/2022]
Abstract
This review focuses on active clinical research in pediatric liver transplantation with special emphasis on areas that could benefit from studies utilizing the SPLIT infrastructure and data repository. Ideas were solicited by members of the SPLIT Research Committee and sections were drafted by members of the committee with expertise in those given areas. This review is intended to highlight priorities for clinical research that could successfully be conducted through the SPLIT collaborative and would have significant impact in pediatric liver transplantation.
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Affiliation(s)
- Estella M. Alonso
- Department of Pediatrics; Ann & Robert H. Lurie Children's Hospital of Chicago; Chicago; IL; USA
| | - Vicky L. Ng
- SickKids Transplant Center; The Hospital for Sick Children and University of Toronto; Toronto; ON; Canada
| | | | - Christopher D. Anderson
- Division of Transplant and Hepatobiliary Surgery; University of Mississippi Medical Center; Jackson; MS; USA
| | - Udeme D. Ekong
- Department of Pediatrics; Ann & Robert H. Lurie Children's Hospital of Chicago; Chicago; IL; USA
| | - Emily M. Fredericks
- Division of Child Behavioral Health; Department of Pediatrics and Communicable Diseases; University of Michigan; Ann Arbor; MI; USA
| | - Katryn N. Furuya
- Department of Pediatrics; Thomas Jefferson University; Philadelphia; PA; USA
| | - Nitika A. Gupta
- Department of Pediatrics; Emory University School of Medicine; Atlanta; GA; USA
| | - Stacee M. Lerret
- Department of Pediatrics; Medical College of Wisconsin; Milwaukee; WI; USA
| | - Shikha Sundaram
- Pediatric Liver Center and Section of Pediatric Gastroenterology, Hepatology and Nutrition, Department of Pediatrics; University of Colorado Denver School of Medicine; Children's Hospital Colorado; Denver; CO; USA
| | - Greg Tiao
- Departments of Pediatric and Thoracic Surgery; Cincinnati Children's Hospital and Medical Center; Cincinnati; OH; USA
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11
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Englesbe MJ, Kelly B, Goss J, Fecteau A, Mitchell J, Andrews W, Krapohl G, Magee JC, Mazariegos G, Horslen S, Bucuvalas J. Reducing pediatric liver transplant complications: a potential roadmap for transplant quality improvement initiatives within North America. Am J Transplant 2012; 12:2301-6. [PMID: 22883313 PMCID: PMC3429726 DOI: 10.1111/j.1600-6143.2012.04204.x] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Though robust clinical data are available within transplantation, these data are not used for broad-based, multicentered quality improvement initiates. This article describes a targeted quality improvement initiative within the Studies of Pediatric Liver Transplantation (SPLIT) Registry. Using standard statistical techniques and clinical expertise to adjust for data and statistical reliability, we identified the pediatric liver transplant centers in North America with the lowest hepatic artery thrombosis rate and biliary complication rates. A survey was completed to establish current practices within the entire SPLIT group. Surgeons from the highest performing centers presented a detailed, technically oriented overview of their current practices. The presentations and discussion that followed were recorded and form the basis of the best practices described herein. We frame this work as a unique six-step approach roadmap that may serve as an efficient and cost effective model for novel broad-based quality improvement initiatives within transplantation.
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Affiliation(s)
- MJ Englesbe
- Department of Surgery – University of Michigan
| | - B Kelly
- Department of Surgery – Vanderbilt University, the Michael E. DeBakey
| | - J Goss
- Department of Surgery – Baylor College of Medicine
| | - A Fecteau
- Department of Surgery – University of Toronto
| | | | - W Andrews
- Department of Surgery - University of Missouri-Kansas City School of Medicine
| | - G Krapohl
- Department of Surgery – University of Michigan
| | - JC Magee
- Department of Surgery – University of Michigan
| | - G Mazariegos
- Department of Surgery – University of Pittsburgh
| | - S Horslen
- Department of Pediatrics-University of Washington
| | - J. Bucuvalas
- Department of Pediatrics -University of Cincinnati
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12
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Desai MS, Zainuer S, Kennedy C, Kearney D, Goss J, Karpen SJ. Cardiac structural and functional alterations in infants and children with biliary atresia, listed for liver transplantation. Gastroenterology 2011; 141:1264-72, 1272.e1-4. [PMID: 21762660 PMCID: PMC3740524 DOI: 10.1053/j.gastro.2011.06.082] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2011] [Revised: 06/17/2011] [Accepted: 06/29/2011] [Indexed: 12/19/2022]
Abstract
BACKGROUND & AIMS Cirrhotic liver diseases are associated with abnormalities in cardiac geometry and function in adults (cirrhotic cardiomyopathy) but rarely explored in cirrhotic infants or children. We proposed that features of cirrhotic cardiomyopathy are present in infants with cirrhosis due to biliary atresia (BA) as early as the time of evaluation for liver transplant and will correlate with mortality and postoperative morbidity. METHODS Two-dimensional echocardiography (2DE) of infants with BA (n=40; median age, 8 months), listed for transplantation at the Texas Children's Hospital from 2004 to 2010, were reviewed and compared with age- and sex-matched infants without cardiac or liver disease (controls). Length of stay and correlation with 2DE results were assessed. RESULTS Compared with controls, children with BA had significant increases in multiple 2DE parameters, notably left ventricle wall thickness (23% increase), left ventricular (LV) mass indexed to body surface area (51% increase), and LV shortening fraction (8% increase). Overall, features of cirrhotic cardiomyopathy were observed in most infants (29/40; 72%); 17 had hyperdynamic contractility, and 24 had altered LV geometry. After liver transplantation (33), infants with abnormal 2DE results had longer stays in the intensive care unit (median, 6 vs 4 days) and the hospital (21 vs 11 days) compared with infants who had normal 2DE reports. On univariate analysis, the length of hospital stay correlated with LV mass index. CONCLUSIONS Cardiomyopathy is a prevalent condition in infants with end-stage cirrhotic liver disease due to BA (>70%). This underrecognized condition likely contributes to the prolongation of posttransplant hospitalization.
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Affiliation(s)
- Moreshwar S. Desai
- Section of Pediatric Critical Care, Baylor College of Medicine, Houston TX.
| | - Shabier Zainuer
- Section of Pediatric Critical Care, Baylor College of Medicine, Houston TX.
| | - Curtis Kennedy
- Section of Pediatric Critical Care, Baylor College of Medicine, Houston TX.
| | - Debra Kearney
- Department of Pathology, Baylor College of Medicine, Houston TX.
| | - John Goss
- Michael E. DeBakey Department of Surgery, Division of Abdominal Transplantation and Hepatobiliary Surgery, Baylor College of Medicine, Houston, TX.
| | - Saul J. Karpen
- Texas Children’s Liver Center, Department of Pediatrics, Baylor College of Medicine, Houston, TX, 77030, USA.
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13
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A multivariate analysis of pre-, peri-, and post-transplant factors affecting outcome after pediatric liver transplantation. Ann Surg 2011; 254:145-54. [PMID: 21606838 DOI: 10.1097/sla.0b013e31821ad86a] [Citation(s) in RCA: 86] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
OBJECTIVE The purpose of this study was to identify significant, independent factors that predicted 6 month patient and graft survival after pediatric liver transplantation. SUMMARY BACKGROUND DATA The Studies of Pediatric Liver Transplantation (SPLIT) is a multicenter database established in 1995, of currently more than 4000 US and Canadian children undergoing liver transplantation. Previous published analyses from this data have examined specific factors influencing outcome. This study analyzes a comprehensive range of factors that may influence outcome from the time of listing through the peri- and postoperative period. METHODS A total of 42 pre-, peri- and posttransplant variables evaluated in 2982 pediatric recipients of a first liver transplant registered in SPLIT significant at the univariate level were included in multivariate models. RESULTS In the final model combining all baseline and posttransplant events, posttransplant complications had the highest relative risk of death or graft loss. Reoperation for any cause increased the risk for both patient and graft loss by 11 fold and reoperation exclusive of specific complications by 4 fold. Vascular thromboses, bowel perforation, septicemia, and retransplantation, each independently increased the risk of patient and graft loss by 3 to 4 fold. The only baseline factor with a similarly high relative risk for patient and graft loss was recipient in the intensive care unit (ICU) intubated at transplant. A significant center effect was also found but did not change the impact of the highly significant factors already identified. CONCLUSIONS We conclude that the most significant factors predicting patient and graft loss at 6 months in children listed for transplant are posttransplant surgical complications.
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14
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Moon SB, Moon JI, Kwon CHD, Kim SJ, Seo JM, Joh JW, Lee SK. Graft rotation and late portal vein complications in pediatric living donor liver transplantation using left-sided grafts: long-term computed tomography observations. Liver Transpl 2011; 17:717-22. [PMID: 21618693 DOI: 10.1002/lt.22262] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Right-side rotation of the graft is an uncommon event after pediatric living donor liver transplantation (LDLT) with a left-sided graft. However, graft rotation might lead to gradual portal vein (PV) stretching and late portal vein complications (PVCs). The goal of this study was to quantify the degree of graft rotation (R) by computed tomography (CT) and to determine the effect of graft rotation on the development of late PVCs. One hundred ten patients underwent LDLT with left-sided grafts between 1996 and 2009; CT images were available and were reviewed for 66 of these patients. To quantify R, the following variables were measured with CT: the longest distance between the midline and the extrahepatic PV at the level of the hepatic hilum (A), the distance between the midline and the center of the superior mesenteric vein at the level of the confluence of the splenic vein and superior mesenteric vein (B), and the inner transverse diameter of the body cavity at the level at which A was measured (C). R was calculated as (A - B)/C. In patients with a patent PV (n = 59) and in patients with late PVCs (n = 7), the median R values were 0.16 (range = 0.03-0.38) and 0.25 (range = 0.13-0.39), respectively; there was a significant difference between the 2 groups (P = 0.003). Multivariate analysis showed that R ≥ 0.2 was the only independent risk factor for the development of late PVCs (P = 0.021). In conclusion, the gradual stretching of the PV after right-side rotation of left-sided grafts might play an important role in the development of late PVCs. PV patency should be closely monitored when graft rotation is noted during clinical follow-up.
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Affiliation(s)
- Suk-Bae Moon
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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15
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Abstract
Biliary atresia (BA) is a progressive fibro-obliterative cholangiopathy of unclear etiology affecting varying degrees of both extra- and intrahepatic biliary tree resulting in obstructive bile flow and cholestasis in neonates. The diagnostic work-up is designed to diagnose or rule out BA without any unnecessary delay. Kasai portoenterostomy is a palliative operation performed to establish bile drainage from microscopic bile ductules that remain in the porta hepatis. It is advantageous to perform portoenterostomy as early after birth as possible for better chances of success. Actuarial native liver 5-year survival rates range from 30% to 60% after portoenterostomy, and about 20% of all patients undergoing Kasai portoenterostomy during infancy survive into adulthood with their native liver. Portoenterostomy remains as the first line operative treatment in BA while liver transplantation serves as a salvage treatment when portoenterostomy fails or liver function gradually deteriorates after initially successful establishment of bile flow.
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Affiliation(s)
- M P Pakarinen
- Section of Pediatric Surgery, Hospital for Children and Adolescents, University of Helsinki, Helsinki, Finland.
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16
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Heffron TG, Pillen T, Smallwood G, Henry S, Sekar S, Casper K, Solis D, Tang W, Fasola C, Romero R. Incidence, impact, and treatment of portal and hepatic venous complications following pediatric liver transplantation: a single-center 12 year experience. Pediatr Transplant 2010; 14:722-9. [PMID: 20345612 DOI: 10.1111/j.1399-3046.2009.01259.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
PVT or PVS and HVOO are known causes of graft and patient loss after pediatric liver transplantation. Increased incidences of these complications have been reported in partial livers including DDSLT or LDLT. From 1997 to 2008, 241 consecutive pediatric patients received 271 hepatic grafts at a single center. Median follow-up is 1856 days. Surgical technique, demographics, lab values, and radiologic imaging procedures were obtained utilizing OTTR to evaluate the relationship of portal and hepatic complications with risk factors, patient and graft survival. Grafts were composed of 115/271 (42.4%) partial livers of which 90 (33.2%) were DDSLT and 25 (9.2%) LDLT. Of 271 patients, 156 (57.6%) received whole-sized grafts. There were six PVC in five patients with one patient requiring retransplantation (0.34%) and no patient deaths. Utilizing all three hepatic vein orifices on the recipient hepatic vena cava and the donor hepatic vein cut short enables a wide hepatic outflow tract unlikely to twist. None of the 241 patients developed early or late complications of the hepatic vein. None of the last 128 consecutive patients who received 144 grafts over seven and a half yr have developed either early or late complications of the hepatic or portal vein. Partial-graft actuarial survival was similar to whole-graft survival (87.2% vs. 85.3% at one yr; 76.6% vs. 80.2 at three yr; p = 0.488). Likewise, patient survival was similar between partial grafts and whole grafts (93.8% vs. 93.1% at one yr; 89.8% vs. 87.2% at three yr; p = 0.688) with median follow-up of 1822 (+/-1334) days. Patients receiving partial livers were significantly younger and smaller than patients receiving whole livers (p < 0.001). Portal and hepatic venous complications may have negative effects on patient or graft survival after pediatric liver transplantation. In our series, there was one graft and no patient loss related to portal or hepatic venous complications after pediatric liver transplantation over 12 yr.
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17
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Risk Factors for Portal Vein Complications After Pediatric Living Donor Liver Transplantation With Left-sided Grafts. Transplant Proc 2010; 42:871-5. [DOI: 10.1016/j.transproceed.2010.02.059] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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18
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Khalil BA, Perera MTPR, Mirza DF. Clinical practice: management of biliary atresia. Eur J Pediatr 2010; 169:395-402. [PMID: 20020156 DOI: 10.1007/s00431-009-1125-7] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2009] [Accepted: 11/30/2009] [Indexed: 12/13/2022]
Abstract
Biliary atresia is a rare, serious and challenging disease in newborn children. Its aetiology remains unknown. Optimal management at specialist centres with resultant better overall outcomes is achieved through a multidisciplinary team approach. The Kasai portoenterostomy performed early in life remains the only surgical repair procedure. Two thirds of patients will clear their jaundice after a Kasai procedure, but only about one third will retain their livers after the first decade of life. Failure of this procedure leaves liver transplantation as the only chance for survival, and this disease is the commonest indication for liver transplantation in children. With modern medical care and refinements in surgical techniques, survival after either or both of these procedures is about 90%. Early referral to specialist centres and long-term specialist care remains the key to successful treatment of this condition.
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Affiliation(s)
- Basem A Khalil
- The Liver Unit, Birmingham Children's Hospital, Steelhouse Lane, Birmingham, UK
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