29 research outputs found
Provider Attitudes Toward Risk-Based Hepatocellular Carcinoma Surveillance in Patients With Cirrhosis in the United States.
BACKGROUND & AIMS: Hepatocellular carcinoma (HCC) surveillance rates are suboptimal in clinical practice. We aimed to elicit providers opinions on the following aspects of HCC surveillance: preferred strategies, barriers and facilitators, and the impact of a patients HCC risk on the choice of surveillance modality. METHODS: We conducted a web-based survey among gastroenterology and hepatology providers (40% faculty physicians, 21% advanced practice providers, 39% fellow-trainees) from 26 US medical centers in 17 states. RESULTS: Of 654 eligible providers, 305 (47%) completed the survey. Nearly all (98.4%) of the providers endorsed semi-annual HCC surveillance in patients with cirrhosis, with 84.2% recommending ultrasound ± alpha fetoprotein (AFP) and 15.4% recommending computed tomography (CT) or magnetic resonance imaging (MRI). Barriers to surveillance included limited HCC treatment options, screening test effectiveness to reduce mortality, access to transportation, and high out-of-pocket costs. Facilitators of surveillance included professional society guidelines. Most providers (72.1%) would perform surveillance even if HCC risk was low (≤0.5% per year), while 98.7% would perform surveillance if HCC risk was ≥1% per year. As a patients HCC risk increased from 1% to 3% to 5% per year, providers reported they would be less likely to order ultrasound ± AFP (83.6% to 68.9% to 57.4%; P < .001) and more likely to order CT or MRI ± AFP (3.9% to 26.2% to 36.1%; P < .001). CONCLUSIONS: Providers recommend HCC surveillance even when HCC risk is much lower than the threshold suggested by professional societies. Many appear receptive to risk-based HCC surveillance strategies that depend on patients estimated HCC risk, instead of our current one-size-fits all strategy
Characterising Silicon Pixel Modules for the Upgrade of the ATLAS Inner Tracker (ITk)
From 2029, the High-Luminosity Large Hadron Collider (HL-LHC), which is currently under development, will begin running. An increase in the rate of collisions is expected to increase the sensitivity to new and exciting physics. In preparation, some of the LHC detectors are being upgraded to be better suited to taking measurements under the conditions the HL-LHC will create. The ATLAS Inner Detector is being upgraded to an all-silicon Inner Tracker (ITk). Silicon pixel modules (silicon sensors connected to data readout electronics) which form part of the ITk, are being electrically tested at CERN. Electrical testing allows one to measure the production quality of a module, in turn determining its suitability for use in the detector. This short report details the testing procedure for such modules and highlights the importance of running such tests
Relationship between Telomere Maintenance and Liver Disease
Previous studies have established a correlation between increasing chronological age and risk of cirrhosis. This pattern raised interest in the role of telomeres and the telomerase complex in the pathogenesis of liver fibrosis and cirrhosis. This review aims to summarize and analyze the current understanding of telomere regulation in hepatocytes and lymphocytes and how this ultimately relates to the development of liver fibrosis. Notably, in chronic viral hepatitis, telomere shortening in hepatocytes and lymphocytes occurs in such a way that may promote further viral replication while also leading to liver damage. However, while telomere shortening occurs in both hepatocytes and lymphocytes and ultimately results in cellular death, the mechanisms of telomere loss appear to be initiated by independent processes. The understanding of telomere maintenance on a hepatic and immune system level in both viral and non-viral etiologies of cirrhosis may open doors to novel therapeutic strategies
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Review article: Available modalities for screening and imaging diagnosis of hepatocellular carcinoma—Current gaps and challenges
BackgroundHepatocellular carcinoma (HCC) incidence and mortality continue to rise worldwide. Society guidelines recommend HCC screening for patients with chronic hepatitis B (CHB) or cirrhosis. Unfortunately, HCC screening rates remain relatively low, and the performance characteristics of current screening modalities are suboptimal.AimThe aim of the study was to discuss the current state of HCC screening and imaging diagnosis utilising standard and emerging imaging modalities in addition to outlining areas of need and ongoing study.MethodsA review of the field was performed combining literature searches and expert opinion.ResultsThe development of the Liver Imaging Reporting and Data System (LI-RADS version 2018) algorithms have advanced and standardised the imaging diagnosis of HCC. While guidelines recommend US for HCC screening, the sensitivity of ultrasound is highly variable for the detection of early-stage HCC with sensitivity reports ranging from 40% to 80%. Biomarker-based scores such as GALAD and alternative imaging modalities such as abbreviated MRI are promising tools to improve HCC early detection. Patients with non-alcoholic fatty liver disease (NAFLD) and patients hepatitis C (HCV) who have achieved sustained virologic response (SVR) can present a clinical dilemma regarding the need for HCC screening. Biomarkers and elastography can aid in identification of individuals at high risk for HCC in these populations.ConclusionsThe LI-RADS system has standardised the imaging interpretation and diagnosis of HCC. Work remains regarding screening in special populations and optimization of screening modalities
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Acute Fulminant Hepatic Failure in 23-Year-Old Female Taking Homeopathic Remedy.
Homeopathic remedies made primarily from eggshells, and therefore calcium, can be marketed for treatment of back pain and vaginal discharge. We present a case of a 23-year-old otherwise healthy woman who presented with acute liver failure (ALF) ultimately requiring liver transplantation as a result of taking increased doses of a homeopathic product with the primary ingredient of eggshells. Although relatively uncommon compared with medications such as acetaminophen, herbal supplements have been reported to cause drug-induced liver injury (DILI), thought to be primarily due to contaminants. This is the first known report of DILI resulting from a homeopathic product with the primary ingredient of eggshells, and it demonstrates the importance of early ALF recognition and treatment, as well as the importance of practicing caution when using homeopathic supplements
Systematic review with network meta‐analysis: comparative efficacy of pharmacologic therapies for fibrosis improvement and resolution of NASH
BackgroundNonalcoholic steatohepatitis (NASH) is a common cause of chronic liver disease. There is a major need to understand the efficacy of different pharmacological agents for the treatment of NASH.AimTo assess the relative rank-order of different pharmacological interventions in fibrosis improvement and NASH resolution.MethodsA comprehensive search of several databases was conducted by an experienced librarian. We included randomised controlled-trials (RCTs) comparing pharmacological interventions in patients with biopsy-proven NASH. The primary outcome was ≥1 stage improvement in fibrosis. The secondary outcome was NASH resolution.ResultsA total of 26 RCTs with 23 interventions met the eligibility criteria. Lanifibranor and obeticholic acid had the highest probability of being ranked the most effective intervention for achieving ≥1 stage of fibrosis improvement (SUCRA 0.78) and (SUCRA 0.77), respectively. For NASH resolution, semaglutide, liraglutide and vitamin E plus pioglitazone had the highest probability of being ranked the most effective intervention for achieving NASH resolution (SUCRA 0.89), (SUCRA 0.84) and (SUCRA 0.83), respectively. Lanifibranor, obeticholic acid, pioglitazone and vitamin E were significantly better than placebo in achieving ≥1 stage of fibrosis improvement. Conversely, semaglutide, liraglutide, vitamine E plus pioglitazone, pioglitazone, lanifibranor and obeticholic acid were significantly better than placebo in achieving NASH resolution.ConclusionThese data provide relative rank-order efficacy of various NASH therapies in terms of their improvements in liver fibrosis and NASH resolution. Therapies that have been shown to improve NASH resolution may be combined with therapies that have an antifibrotic effect to further boost treatment response rate in future
Comparative Effectiveness of Entecavir Versus Tenofovir for Preventing Hepatocellular Carcinoma in Patients with Chronic Hepatitis B: A Systematic Review and Meta‐Analysis
Background and aimsChronic hepatitis B (CHB) can lead to hepatocellular carcinoma (HCC). While both tenofovir disoproxil (TDF) and entecavir (ETV) have been shown to reduce the risk of HCC, their comparative effectiveness is unclear. We estimated the comparative effectiveness of these two agents in reducing the risk of HCC in patients with CHB, through a systematic review and meta-analysis.Approach and resultsWe searched multiple electronic databases from January 1, 1998, to October 31, 2019, for randomized controlled trials and observational comparative effectiveness studies in adults with CHB treated with ETV compared to TDF, reporting the incidence of HCC (minimum follow-up 12 months). Primary outcome was incidence of HCC, calculated as incidence rate ratio (IRR) with 95% confidence interval (CI, unadjusted analysis) and hazard ratio (HR) with 95% CI (adjusted analysis, where reported). Of 1,971 records identified, 14 studies (263,947 person-years) were included for quantitative analysis. On unadjusted meta-analysis of 14 studies, the risk of HCC was not statistically different between ETV and TDF (IRR, 1.28; 95% CI, 0.99-1.66). When using available adjusted data (multivariate or propensity-matched data), the risk of HCC among patients treated with ETV was 27% higher when compared to TDF (seven studies; 95% CI, 1.01-1.60, P = 0.04). Additional analysis of adjusted data when separately reported among patients with cirrhosis demonstrated an adjusted HR of 0.90 (95% CI, 0.66-1.23), suggesting no difference between ETV-treated and TDF-treated groups. The overall confidence in estimates was very low (observational studies, high heterogeneity).ConclusionsTDF may be associated with lower risk of HCC when compared to ETV