2nd Fl
Palo Alto, CA 94304
Fax: (650) 721-3822
Like a child, the liver is resilient. My foremost goal, as a highly specialized doctor, is to improve the lives of children with liver disease by providing expert care and making meaningful contributions in both research and clinical practice. It is a privilege to return children with liver disease to their best possible health.
Boston University School of Medicine, Boston, MA, 5/1/2011
UCSF Pediatric Residency, San Francisco, CA, 06/30/2014
Seattle Children's Hospital Pediatric Gastroenterology Fellowship, Seattle, WA, 06/30/2017
UCSF Pediatric Transplant Hepatology, San Francisco, CA, 07/06/2018
Pediatric Gastroenterology, American Board of Pediatrics
Pediatric Transplant Hepatology, American Board of Pediatrics
The social determinants of health contribute to adverse post-liver transplant outcomes. Identifying unmet social risks may enable transplant teams to improve long-term outcomes for at-risk children. However, providers may feel uncomfortable asking about household-level social risks in the posttransplant period because they might make their patients/families uncomfortable.We conducted a mixed-methods analysis of caregiver participants (ie, parents/guardians of pediatric liver transplant recipients) in the Social and Contextual Impact on Children Undergoing Liver Transplantation study to assess their perceptions of provider-based social risk screening. Participants (N=109) completed a 20-min social determinants of health questionnaire that included questions on the acceptability of being asked intimate social risk questions. A subset of participants (N=37) engaged in an in-depth qualitative interview to share their perceptions of social risk screening.Of 109 participants across 9 US transplant centers, 60% reported financial strain and 30% reported at least 1 material economic hardship (eg, food insecurity, housing instability). Overall, 65% of respondents reported it very or somewhat appropriate and 25% reported being neutral to being screened for social risks in a liver transplant setting. In qualitative analyses, participants reported trust in the providers and a clear understanding of the intention of the screening as prerequisites for liver transplant teams to perform social risk screening.Only a small minority of caregivers found social risk screening unacceptable. Pediatric liver transplant programs should implement routine social risk screening and prioritize the patient and family voices when establishing a screening program to ensure successful implementation.
View details for DOI 10.1097/TP.0000000000004835
View details for PubMedID 37831642
Importance: Live vaccines (measles-mumps-rubella [MMR] and varicella-zoster virus [VZV]) have not been recommended after solid organ transplant due to concern for inciting vaccine strain infection in an immunocompromised host. However, the rates of measles, mumps, and varicella are rising nationally and internationally, leaving susceptible immunocompromised children at risk for life-threating conditions.Objective: To determine the safety and immunogenicity of live vaccines in pediatric liver and kidney transplant recipients.Design, Setting, and Participants: This cohort study included select pediatric liver and kidney transplant recipients who had not completed their primary MMR and VZV vaccine series and/or who displayed nonprotective serum antibody levels at enrollment between January 1, 2002, and February 28, 2023. Eligibility for live vaccine was determined by individual US pediatric solid organ transplant center protocols.Exposures: Exposure was defined as receipt of a posttransplant live vaccine. Transplant recipients received 1 to 3 doses of MMR vaccine and/or 1 to 3 doses of VZV vaccine.Main Outcome and Measure: Safety data were collected following each vaccination, and antibody levels were obtained at 0 to 3 months and 1 year following vaccination. Comparisons were performed using Mann-Whitney U test, and factors associated with development of postvaccination protective antibodies were explored using univariate analysis.Results: The cohort included 281 children (270 [96%] liver, 9 [3%] kidney, 2 [1%] liver-kidney recipients) from 18 centers. The median time from transplant to enrollment was 6.3 years (IQR, 3.4-11.1 years). The median age at first posttransplant vaccine was 8.9 years (IQR, 4.7-13.8 years). A total of 202 of 275 (73%) children were receiving low-level monotherapy immunosuppression at the time of vaccination. The majority of children developed protective antibodies following vaccination (107 of 149 [72%] varicella, 130 of 152 [86%] measles, 100 of 120 [83%] mumps, and 124 of 125 [99%] rubella). One year post vaccination, the majority of children who initially mounted protective antibodies maintained this protection (34 of 44 [77%] varicella, 45 of 49 [92%] measles, 35 of 42 [83%] mumps, 51 of 54 [94%] rubella). Five children developed clinical varicella, all of which resolved within 1 week. There were no cases of measles or rubella and no episodes of graft rejection within 1 month of vaccination. There was no association between antibody response and immunosuppression level at the time of vaccination.Conclusions and Relevance: The findings suggest that live vaccinations may be safe and immunogenic after solid organ transplant in select pediatric recipients and can offer protection against circulating measles, mumps, and varicella.
View details for DOI 10.1001/jamanetworkopen.2023.37602
View details for PubMedID 37824141
Children from minoritized/socioeconomically deprived backgrounds suffer disproportionately high rates of uninsurance and graft failure/death after liver transplant. Medicaid expansion was developed to expand access to public insurance. Our objective was to characterize the impact of Medicaid expansion policies on long-term graft/patient survival after pediatric liver transplantation. All pediatric patients (<19 years) who received a liver transplant between 1/1/2005-12/31/2020 in the US were identified in the Scientific Registry of Transplant Recipients (N=8489). Medicaid expansion was modeled as a time-varying exposure based on transplant and expansion dates. We used Cox proportional hazards models to evaluate the impact of Medicaid expansion on a composite outcome of graft failure/death over 10 years. As a sensitivity analysis, we conducted an intention-to-treat analysis from time of waitlisting to death (N=11901). In multivariable analysis, Medicaid expansion was associated with a 30% decreased hazard of graft failure/death (HR: 0.70; 95%CI: 0.62,0.79; p<0.001), after adjusting for Black race, public insurance, neighborhood deprivation, and living in a primary care shortage area. In intention-to-treat analyses, Medicaid expansion was associated with a 72% decreased hazard of patient death (HR: 0.28; 95%CI: 0.23-0.35; p<0.001). Policies that enable broader health insurance access may help improve outcomes and reduce disparities for children undergoing liver transplantation.
View details for DOI 10.1016/j.ajt.2023.09.017
View details for PubMedID 37776976
View details for Web of Science ID 001037135104146
Adolescents constitute a unique waitlist cohort that is distinct from younger children. MELD 3.0, which was developed in an adult population of liver transplant candidates, is planned to replace MELD-Na in the current liver allocation system for both adult and adolescents aged 12-17. We evaluated the predictive performance of MELD-Na, MELD 3.0, and PELD, for 90-day waitlist mortality risk among adolescent liver transplant registrants.New waitlist registrations for primary liver transplant among individuals aged 12-17 and aged 18-25 for comparison were identified using OPTN data from Nov 17 2004 to Dec 31 2021. The predictive performance of the current and proposed MELD and PELD scores was assessed using the Harrell's concordance (c) statistic.There were 1,238 eligible listings for adolescents aged 12-17, and 1,740 young adults aged 18-25. In the adolescent group, 90-day survival was 97.8%, compared to 95.9% in those aged 18-25 (log-rank p = 0.005), with no significant differences when stratified by sex or indication. Among adolescents, increasing MELD 3.0 was associated with an increased hazard of mortality (HR 1.27, 95% CI 1.18-1.37), and the c-statistic for 90-day waitlist survival using MELD 3.0 was 0.893, compared with 0.871 using MELD-Na, and 0.852 using PELD.The discriminative ability of MELD 3.0 to rank adolescents according to the risk of death within 90 days was robust. Although MELD 3.0 was initially developed and validated in adults, MELD 3.0 may also improve the prediction of waitlist mortality in adolescents and better represent their urgency for liver transplant.
View details for DOI 10.1097/HEP.0000000000000352
View details for PubMedID 36943091
View details for DOI 10.1111/petr.14472
View details for PubMedID 36872458
View details for Web of Science ID 000994637700006
In 2021, liver transplant volume continued to grow, with a record 9,234 transplants performed in the United States, 8,665 (93.8%) from deceased donors and 569 (6.2%) from living donors. There were 8,733 (94.6%) adult and 501 (5.4%) pediatric liver transplant recipients. An increase in the number of deceased donor livers corresponded to an increase in the overall transplant rate and shorter waiting times, although still 10.0% of livers that were recovered were not transplanted. Alcohol-associated liver disease was the leading indication for both waitlist registration and liver transplant in adults, outpacing nonalcoholic steatohepatitis, while biliary atresia remained the leading indication for children. Related to allocation policy changes implemented in 2019, the proportion of liver transplants performed for hepatocellular carcinoma has decreased. Among adult candidates listed for liver transplant in 2020, 37.7% received a deceased donor liver transplant within 3 months, 43.8% within 6 months, and 53.3% within 1 year. Pretransplant mortality improved for children following implementation of acuity circle-based distribution. Short-term graft and patient survival outcomes up to 1 year worsened for adult deceased and living donor liver transplant recipients, which is a reversal of previous trends and coincided with the onset of the COVID-19 pandemic in early 2020. Longer-term outcomes among adult deceased donor liver transplant recipients were unaffected, with overall posttransplant mortality rates of 13.3% at 3 years, 18.6% at 5 years, and 35.9% at 10 years. Pretransplant mortality improved for children following implementation of acuity circle-based distribution and prioritization of pediatric donors to pediatric recipients in 2020. Pediatric living donor recipients had superior graft and patient survival outcomes compared with deceased donor recipients at all time points.
View details for DOI 10.1016/j.ajt.2023.02.006
View details for PubMedID 37132348
View details for Web of Science ID 000870796600018
View details for Web of Science ID 000870796604420
(s): To assess and characterize healthcare resource utilization (HRU) in children with the rare, genetic, multisystem disorder, Alagille syndrome (ALGS).This retrospective analysis reviewed commercially- and Medicaid-insured claims from October 1, 2015 through December 31, 2019 to assess HRU in patients with ALGS. As there is no specific International Classification of Diseases (ICD)-10 code for ALGS, patients were identified using the following algorithm: 1 claim with diagnosis code Q44.7 (other congenital malformations of the liver), <18 years of age, with no history of biliary atresia (ICD-10 code: Q44.2) and 6 months of insurance eligibility prior to diagnosis. HRU was summarized per patient per year over all available claims post-diagnosis.171 commercially-insured and 215 Medicaid-insured patients with ALGS were available for analysis. Annually, commercially-insured and Medicaid-insured patients averaged 31 medical visits (range 1.5-237) and 48 medical visits (range 0.7-690), respectively. The most common visits were outpatient with the majority encompassing lab/imaging and primary care visits (commercially-insured: 21 [range 0.0-183]; Medicaid-insured: 26 [range 0.0-609]). Inpatient visits were the highest driver of costs in both the commercial and Medicaid populations.Patients with ALGS have a substantial HRU burden driven largely by numerous outpatient visits and costly inpatient stays. Given the complexity and variability of ALGS presentation, patients may benefit from multidisciplinary and subspecialized care.
View details for DOI 10.1016/j.jpeds.2022.09.033
View details for PubMedID 36179890
BACKGROUND: Alagille syndrome (ALGS) is a multisystem disorder, characterized by cholestasis. Existing outcome data are largely derived from tertiary centers and real-world data are lacking. This study aimed to elucidate the natural history of liver disease in a contemporary, international, cohort of children with ALGS.METHODS: Multicenter retrospective study of children with a clinically and/or genetically confirmed ALGS diagnosis, born Jan-1997 - Aug-2019. Native liver survival (NLS) and event-free survival rates were assessed. Cox models were constructed to identify early biochemical predictors of clinically evident portal hypertension (CEPH) and NLS.RESULTS: 1433 children (57% male) from 67 centers in 29 countries were included. 10 and 18-years NLS rates were 54.4% and 40.3%. By 10 and 18-years, 51.5% and 66.0% of ALGS children experienced 1 adverse liver-related event (CEPH, transplant or death). Children (>6 and 12 months) with median total bilirubin (TB) levels between 5.0 and <10.0 mg/dL had a 4.1-fold (95% CI 1.6 - 10.8) and those 10.0 mg/dL had an 8.0-fold (95% CI 3.4 - 18.4) increased risk of developing CEPH compared with those <5.0 mg/dL. Median TB levels between 5.0 and <10.0 mg/dL and >10.0 mg/dL were associated with a 4.8 (95% CI 2.4 - 9.7) and 15.6 (95% CI 8.7 - 28.2) increased risk of transplantation relative to <5.0 mg/dL. Median TB <5.0 mg/dL were associated with higher NLS rates relative to 5.0 mg/dL, with 79% reaching adulthood with native liver (p<0.001).CONCLUSIONS: In this large international cohort of ALGS, only 40.3% of children reach adulthood with their native liver. A TB <5.0 mg/dL between 6-and-12-months of age is associated with better hepatic outcomes. These thresholds provide clinicians with an objective tool to assist with clinical decision-making and in the evaluation of novel therapies.
View details for DOI 10.1002/hep.32761
View details for PubMedID 36036223
View details for DOI 10.1111/ajt.17085
View details for PubMedID 35510786
View details for DOI 10.1016/j.jpeds.2022.04.046
View details for PubMedID 35504347
BACKGROUND: MPV17-related mitochondrial DNA maintenance defect (MPV17 deficiency) is a rare, autosomal recessive mitochondrial DNA depletion syndrome with a high mortality rate in infancy and early childhood due to progression to liver failure. Liver transplantation for children with MPV17 deficiency has been considered controversial due to uncertainty about the potential progression of extrahepatic manifestations following liver transplantation.METHODS: We describe our institution's experience for two infants diagnosed with infantile MPV17 deficiency who presented in acute on chronic liver failure, but with normal development and normal neurological status who successfully underwent liver transplantation.RESULTS: Both patients underwent successful liver transplantation with normal development and neurological status at 3years and 16months post-transplant, respectively.CONCLUSIONS: In this rare disease population, we describe two infants with MPV17 deficiency who underwent liver transplantation for acute on chronic liver failure who continue to have normal development, without progression of neurological disease. MPV17 deficiency should not be considered a contraindication to liver transplantation.
View details for DOI 10.1111/petr.14274
View details for PubMedID 35466509
View details for Web of Science ID 000783167500235
View details for Web of Science ID 000783167500080
View details for Web of Science ID 000783167500111
View details for Web of Science ID 000783167500041
View details for Web of Science ID 000783167500071
This year was marked by the COVID-19 pandemic, which altered transplant program activity and affected waitlist and transplant outcomes. Still, 8906 liver transplants were performed, an all-time high, across 142 centers in the United States, and pretransplant as well as graft and patient survival metrics, continued to improve. Living donation activity decreased after several years of growth. As of June 30, 2020, 98989 liver transplant recipients were alive with a functioning graft, and in the context of increasing liver transplant volume, the size of both the adult and pediatric liver transplant waitlists have decreased. On February 4, 2020, shortly before the pandemic began, a new liver distribution policy based on acuity circles was implemented, replacing donor service area- and region-based boundaries. A policy change to direct pediatric livers to pediatric recipients led to an increase in deceased donor transplant rates and a decrease in pretransplant mortality rate among children, although the absolute number of pediatric transplants did not increase in 2020. Among adults, alcohol-associated liver disease became the predominant indication for liver transplant in 2020. After implementation of the National Liver Review Board and lower waitlist priority for most exception cases in 2019, fewer liver transplants were being performed via exception points, and the transplant rate between those with and without hepatocellular carcinoma has equalized. Women continue to experience higher pretransplant mortality and lower rates of liver transplant than men.
View details for DOI 10.1111/ajt.16978
View details for PubMedID 35266621
Equity is a core principle in both pediatrics and solid organ transplantation. Health inequities, specifically across race, socioeconomic position, or geography, reflect a moral failure. Ethical principles of prudential life span, maximin principle, and fair innings argue for allocation priority to children related to the number of life years gained, equal access to transplant, and equal opportunity for ideal post-transplant outcomes. Iterative policy changes have aimed to narrow these disparities to achieve pediatric transplant equity. These policy changes have focused on modifying pediatric priority for organ allocation to eliminate mortality on the pediatric transplant waitlist. Yet disparities remain in pediatric liver transplantation at all time points: from access to referral for transplantation, likelihood of living donor transplantation, utilization of exception narratives, waitlist mortality, and inequitable post-transplant outcomes. Black children are less likely to be petitioned for exception scores, have higher waitlist mortality, are less likely to be the recipient of living donor transplant, and have worse post-transplant outcomes compared to White children. Children living in the most socioeconomically deprived neighborhoods have worse post-transplant outcomes. Children living further from a transplant center have higher waitlist mortality. Herein, we review the current knowledge of these racial and ethnic, socioeconomic, and geographic disparities for these children. To achieve equity, stakeholder engagement is required at all levels from providers and health delivery systems, learning networks, institutions, and society. Future initiatives must be swift, bold, and effective with the tri-partite mission to inform policy changes, improve healthcare delivery, and optimize resource allocation to provide equitable transplant access, waitlist survival, and post-transplant outcomes for all children.
View details for DOI 10.1002/lt.26437
View details for PubMedID 35188708
View details for Web of Science ID 000739470700158
View details for Web of Science ID 000727360100075
ABSTRACT: Children are seldom affected by severe forms of severe acute respiratory syndrome coronavirus type 2 (SARS-CoV2) infection. However, the impact of comorbidities in the clinical presentation and outcome of SARS-CoV2 in children is poorly characterized including that of chronic liver disease (CLD) and those taking immunosuppressive medications for autoimmune liver disease or following liver transplantation (LT). Although not the main target organ, a spectrum of liver involvement has been described in children infected with SARS-CoV2 and those presenting with Multisystem Inflammatory Syndrome in Children (MIS-C). The Hepatology Committee of the European Society for Pediatric Gastroenterology, Hepatology and Nutrition (ESPGHAN) and the Society of Pediatric Liver Transplantation (SPLIT) present an evidence-based position paper on liver involvement in children with SARS-CoV2 infection and its impact on those with CLD as well as LT recipients. All children may exhibit acute liver injury from SARS-CoV2 infection, and those with CLD and may experience hepatic decompensation. Preventative and therapeutic measures are discussed.
View details for DOI 10.1097/MPG.0000000000003339
View details for PubMedID 34694269
View details for DOI 10.1097/MPG.0000000000003326
View details for PubMedID 34654794
View details for Web of Science ID 000707188005343
View details for Web of Science ID 000707188005314
View details for Web of Science ID 000707188000205
While many adult solid organ transplant recipients (SOTRs) have impaired antibody response to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) vaccination, pediatric SOTRs' response has not been assessed.1-2 We report the immunogenicity and safety of BNT162b2 mRNA vaccination in pediatric SOTRs.
View details for DOI 10.1111/ajt.16841
View details for PubMedID 34517430
View details for DOI 10.1097/PG9.0000000000000057
View details for PubMedID 37207059
View details for PubMedCentralID PMC10191595
Increased mortality risk due to severe acute respiratory syndrome coronavirus-2 (SARS-CoV2) infection in adults with native liver disease (LD) and liver transplant (LT) is associated with advanced age and comorbid conditions. We aim to report outcomes for children with LD and LT enrolled in the NASPGHAN/SPLIT SARS-CoV2 registry.In this multicenter observational cohort study, we collected data from 91 patients <21years (LD 44, LT 47) with laboratory-confirmed SARS-CoV2 infection between April 21 and September 17, 2020.Patients with LD were more likely to require admission (70% vs 43% LT, p=0.007) and pediatric intensive care unit (PICU) management (32% vs 4% LT, p=0.001). Seven LD patients required mechanical ventilation (MV) and 2 patients died; no patients in the LT cohort died or required MV. Four LD patients presented in pediatric acute liver failure (PALF), 2 with concurrent multisystem inflammatory syndrome in children (MIS-C); all recovered without LT. Two LD patients had MIS-C alone and one patient died. Bivariable logistic-regression analysis found that patients with non-alcoholic fatty liver disease (NAFLD) (OR 5.6, p=0.02) and LD (OR 6.1, p=0.01, vs LT) had higher odds of severe disease (PICU, vasopressor support, MV, renal replacement therapy or death).Although not directly comparable, LT recipients had lower odds of severe SARS-CoV2 infection (vs LD), despite immunosuppression burden. NAFLD patients reported to the registry had higher odds of severe SARS-CoV2 disease. Future controlled studies are needed to evaluate effective treatments and further stratify LD and LT patients with SARS-CoV2 infection.
View details for DOI 10.1097/MPG.0000000000003077
View details for PubMedID 33605666
View details for Web of Science ID 000574027000187
View details for Web of Science ID 000574027003242
View details for Web of Science ID 000574027003241
View details for Web of Science ID 000618872101227
View details for Web of Science ID 000618872101149
OBJECTIVE: To evaluate risk factors for hepatic artery thrombosis (HAT) and examine the long-term outcomes of graft and patient survival following HAT in pediatric recipients of liver transplantation.STUDY DESIGN: Utilizing multicenter data from the Society of Pediatric Liver Transplantation (SPLIT), Kaplan-Meier and Cox regression analyses were performed on first-time pediatric (aged <18 years) liver transplant recipients (n=3801) in the United States and Canada between 1995 to 2016.RESULTS: Of children undergoing their first liver transplantation, 7.4% developed HAT within the first 90 days of transplantation and of those who were re-transplanted, 20.7% developed recurrent HAT. Prolonged warm ischemia times increased the odds of developing HAT (OR 1.11, p=0.02). Adolescents aged 11-17 years (OR 0.53, p=0.03) and recipients with split, reduced or living donor grafts had decreased odds of HAT (OR 0.59, P < .001 compared with whole grafts). Fifty percent of children who developed HAT developed graft failure within the first 90 days of transplantation (AHR 11.87, 95% CI 9.02,15.62) and had a significantly higher post-transplant mortality within the first 90 days of transplantation (AHR 6.18, 95% CI 4.01,9.53).CONCLUSIONS: These data from an international registry demonstrate poorer long-term graft and patient survival in pediatric recipients whose post-transplant course is complicated by HAT. Notably, recipients of technical variant grafts had lower odds of HAT compared with whole liver grafts.
View details for DOI 10.1016/j.jpeds.2020.06.053
View details for PubMedID 32585237
To assess outcomes in a large cohort of patients with Alagille Syndrome (ALGS) who underwent pulmonary artery reconstruction surgery for complex PA disease.Patients with ALGS who underwent PA reconstruction surgery at Lucile Packard Children's Hospital Stanford were reviewed. Patients were examined as an overall cohort and based on the primary cardiovascular diagnosis: severe isolated branch PA stenosis, tetralogy of Fallot (TOF) without major aortopulmonary collateral arteries (MAPCAs), or TOF with MAPCAs RESULTS: Fifty-one patients with ALGS underwent PA surgery at our center: 22 with severe branch PA stenosis, 9 with TOF without MAPCAs, and 20 with TOF and MAPCAs. Forty-one patients (80%) achieved a complete repair. Five of the patients with TOF with MAPCAs (25%) had a complete repair at the first surgery, compared with 8 (89%) and 19 (86%) with TOF without MAPCAs and isolated branch PA stenosis, respectively. At a median follow-up of 1.7 years after the first surgery, 39 patients (76%) were alive, 36 with a complete repair and a median PA:aortic systolic pressure ratio of 0.38. Nine patients (18%), 8 with isolated branch PA stenosis, underwent liver transplantation.Most patients with ALGS and complex PA disease can undergo complete repair with low postoperative right ventricular pressure. Patients with TOF/MAPCAs had the worst outcome, with higher mortality and more frequent PA interventions compared with patients with TOF without MAPCAs or isolated branch PA stenosis. Complex PA disease is not a contraindication to liver transplantation in patients with ALGS.
View details for DOI 10.1016/j.jpeds.2020.09.053
View details for PubMedID 32980376
In adults, elevated hepatic venous pressure gradients (HVPGs) are correlated with the degree of liver fibrosis on histopathology and predict worse outcomes including variceal bleeding and death. We aimed to examine the association between HVPG measurements, histopathologic findings, and clinical indicators of portal hypertension in children.Utilizing retrospective data from 2 pediatric centers between 2006 and 2015, we identified children who underwent simultaneous HVPG measurement and transjugular liver biopsy. Medical charts were reviewed for histopathology, imaging, endoscopic, and clinical data.Forty-one children (median age 11 years) were included in the analysis with diagnoses of acute hepatitis (n=15), chronic liver disease (n=12), hepatic noncirrhotic portal hypertension (n=4), acute liver failure (n=3), and nonhepatic causes of portal hypertension (n=7). Elevated mean HVPG measurements were found in children with acute liver failure (10 mmHg, range 4-12) and chronic liver disease (7 mmHg, range 1-12). HVPG measurements did not correlate with the histological severity of fibrosis (=0.23, P=0.14) or portal inflammation (=0.24, P=0.29), and no difference was found in HVPG when comparing children with and without a history of variceal bleeding (P=0.43).HVPG measurements do not correlate significantly with the degree of hepatic fibrosis on biopsy. Furthermore, HVPG measurements are not associated with the presence of varices or history of variceal bleeding, suggesting the possibility of intrahepatic shunting in children with advanced liver disease. Therefore, unlike in adults, HVPG measurements may not accurately predict children who are at risk of complications from portal hypertension.
View details for DOI 10.1097/MPG.0000000000002327
View details for PubMedID 30921261
View details for DOI 10.1111/apt.14620
View details for PubMedID 29878412
We evaluated liver transplantation waitlist and posttransplantation outcomes in those aged 18 to 24 years compared with both younger (0-17 years) and older (25-34 years) registrants and recipients.Using national data from the United Network for Organ Sharing, competing risk, Cox regression and Kaplan-Meier analyses were performed on first-time liver transplant registrants (n = 13 979) and recipients (n = 8718) ages 0 to 34 years between 2002 and 2015.Nonstatus 1A registrants, registrants aged 0 to 17 and 25 to 34 years were less likely to experience dropout from the waiting list compared with those aged 18 to 24 years (adjusted hazard ratio, 0-5 years = 0.36; 6-11 = 0.29; 12-17 = 0.48; 18-24 = 1.00; 25-34 = 0.82). Although there was no difference in risk of graft failure across all age groups, both younger and older age groups had significantly lower risk of posttransplant mortality compared with those aged 18 to 24 years (adjusted hazard ratio, for 0-5 years = 0.53, 6-11 = 0.48, 12-17 = 0.70, 18-24 = 1.00, 25-34 = 0.77). This may be related to lower likelihood of retransplantation after graft failure in those aged 18 to 24 years.This national registry study demonstrates for the first time poorer waitlist and postliver transplant outcomes in young adults ages 18 to 24 years at the time of listing and transplantation compared to older and younger age groups. Given the potential survival benefit in transplanting young adults and the shortage of solid organs for transplant, future studies are critical to identify and target modifiable risk factors to improve waitlist and long-term posttransplant outcomes in 18- to 24-year-old registrants and recipients.
View details for DOI 10.1097/TP.0000000000001689
View details for PubMedID 28230640
View details for PubMedCentralID PMC5481466