Publications by authors named "John F Dillon"

Understanding risk factors for hepatitis C virus (HCV) is critical for targeting screening and prevention. We systematically reviewed risk factors associated with HCV seroprevalence among the general population in sub-Saharan Africa (SSA). Comprehensive systematic review of HCV seroprevalence of community-based observational studies reporting HCV risk factors in SSA.

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Hepatocellular carcinoma (HCC) is the most common type of primary liver cancer, accounting for about 70-80% of cases globally. The hepatitis B and C viruses (HBV and HCV) account for approximately 70% of all HCC cases worldwide, with variation across geographic regions. While progress has been made in achieving some of the World Health Organization's viral hepatitis elimination targets set for 2030, considerable action is still needed to achieve global viral hepatitis elimination.

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Background: Hepatitis C Virus is a global health burden, particularly affecting people who inject drugs. Direct-acting antiviral treatment can cure almost all people infected with hepatitis C. However, the longer-term impacts on within people's life trajectories are unknown, although some suggest it may lead to fundamental behavioural changes.

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Background: People who overdose on opioids when they are alone or unmonitored are at heightened risk of death as other people do not know they should provide an emergency response. Wearable technology provides an opportunity to continuously measure respiratory function and ultimately send an alert if respiratory depression occurs.

Objective: This study evaluates the feasibility and acceptability of PneumoWave DC in UK homeless hostels or supported accommodation settings (equivalent to Housing First in the USA) for individuals at high risk of opioid overdose.

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Background: The introduction of Direct-Acting Antivirals (DAAs) transformed Hepatitis C (HCV) treatment, despite this uptake of DAAs remains lower than required to meet the WHO Sustainable Development Goal (3.3). Treatment with interferon was suggested to be able to deliver important outcomes for people who use drugs in addition to a viral cure, such as social redemption, and shift from a stigmatised identity.

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Cirrhosis is a major cause of morbidity and mortality; however, there are no approved therapies except orthotopic liver transplantation. Preclinical studies showed that bone-marrow-derived macrophage injections reduce inflammation, resolve fibrosis and stimulate liver regeneration. In a multicenter, open-label, parallel-group, phase 2 randomized controlled trial ( ISRCTN10368050 ) in n = 51 adult patients with compensated cirrhosis and Model for End-Stage Liver Disease (MELD) score ≥10 and ≤17, we evaluated the efficacy of autologous monocyte-derived macrophage therapy (n = 27) compared to standard medical care (n = 24).

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Hepatitis C virus (HCV) is hypothesised to be a public health problem in Ethiopia, and systematic review evidence suggested 1%-3% seroprevalence. We aimed to estimate the seroprevalence of HCV overall and across regions of Ethiopia. We estimated HCV seroprevalence using the 2016 Ethiopian Demographic and Health Survey (EDHS-2016).

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Meeting the World Health Organisation 2030 target of treating 80% of people with hepatitis C virus (HCV) in Australia requires accessible testing and treatment services for at-risk populations. Previous clinical trials, including those in Australia, have demonstrated the efficacy of outreach programmes to community pharmacies offering opioid agonist therapy (OAT). This analysis evaluates the potential cost-effectiveness of introducing an outreach programme in community pharmacies.

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Background And Aims: Metabolic dysfunction-associated steatotic liver disease (MASLD) is a growing public health problem. The secondary stage in MASLD is steatohepatitis (MASH), the co-existence of steatosis and inflammation, a leading cause of progression to fibrosis and mortality. MASH resolution alone improves survival.

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Article Synopsis
  • A study assessed hepatitis C virus (HCV) prevalence in sub-Saharan Africa, estimating an overall seroprevalence of 4.17% in the general population, with higher rates found in individuals aged 65 and older and those living in rural areas.
  • The research synthesized data from 130 community-based studies and identified regional variations in seroprevalence, with the highest rates in Africa-Western and some areas in Central and Eastern Africa.
  • The findings highlight the importance of targeted public health initiatives, especially in disproportionately affected populations, to meet global HCV elimination goals by 2030.
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Background And Aims: Metabolic dysfunction-associated steatotic liver disease management guidelines have been published worldwide; we aimed to summarize, categorize, and compare their lifestyle intervention recommendations.

Approach And Results: We searched metabolic dysfunction-associated steatotic liver disease/NAFLD management guidelines published between January 1, 2013, and June 31, 2024, through databases including PubMed/MEDLINE, Cochrane, and CINAHL. In total, 35 qualifying guidelines were included in the final analysis.

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Background & Aims: In community pathways for detection of liver disease the most common reason for referral is fibrosis assessment. We investigated the impact of adding the Enhanced Liver Fibrosis (ELF) score as a second-line test (subsequent to an indeterminate or high Fibrosis-4 index [FIB-4] and/or non-alcoholic fatty liver disease fibrosis score) to guide referral and prognostication in our multi-aetiology pathway.

Methods: Patients with ELF results from the intelligent Liver Function Testing (iLFT) pathway were recruited.

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Article Synopsis
  • The intelligent Liver Function Testing (iLFT) pathway is an innovative system that uses algorithms to automate liver function tests and provide feedback on abnormal results, implemented in NHS Tayside since August 2018.
  • It was introduced to address the high number of abnormal LFTs that often went uninvestigated, amid increasing deaths from chronic liver disease.
  • The iLFT has been utilized over 11,000 times in its first three years, and the study discusses its development, impact on diagnostic services, and potential for future 'intelligent' medical investigations.
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Background And Aims: Metabolic dysfunction associated steatotic liver disease (MASLD) increases the risk of incident chronic kidney disease (CKD). However, the relative risk of CKD associated with increasing hepatic fibrosis, and consequent mortality risk, remains underexplored in real-world cohorts. In this study, we sought to establish whether hepatic fibrosis is associated with increased CKD risk and explore differences in mortality risk in a cohort of people living with MASLD, contingent on liver fibrosis and CKD status.

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Background And Aims: Several characteristics are known to affect the risk of Barrett's oesophagus (BO) in the general population, with symptomatic gastro-oesophageal reflux disease (GORD) being a critical risk factor. In this study, we examined factors that influence BO development in people living with GORD.

Design: People living with GORD were recruited from an endoscopy unit with lifestyle, medical and prescribing history collected.

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Article Synopsis
  • - The World Health Organization aims to eradicate viral hepatitis by 2030, and this study evaluates how effective community pharmacies are in testing and treating hepatitis B and C.
  • - The research involved analyzing 27 studies, revealing that injected drug use was the most common risk factor identified, with a 16.6% positive antibody rate for hepatitis C among participants tested.
  • - The study found that targeting high-risk groups for testing significantly increased positive outcomes (32.5%) compared to non-targeted approaches (4.0%), while attendance for pre-treatment assessments was notably higher in pharmacies (92.7%) versus other venues (53.5%).
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The American, European, and Latin American liver societies have proposed a change in the nomenclature we use to describe alcohol-related liver disease and non-alcoholic fatty liver disease. Additionally, a term encompassing both is now advocated: steatotic liver disease, which includes metabolic dysfunction associated steatotic liver disease (MASLD) and MASLD with greater alcohol consumption (MetALD). These classifications offer increased relevance for clinicians, researchers, and patients alike.

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Introduction And Objectives: Early diagnosis of metabolic dysfunction-associated steatotic liver disease (MASLD), especially with advanced fibrosis, is crucial due to the increased risk of complications and mortality. Serum alanine aminotransferase (ALT) is commonly used; however, many patients have normal ranges (<55 U/L) who may remain undetected. We investigated the clinical implications of a lower ALT cut-off (>30 U/L) using intelligent liver function testing (iLFT) to identify MASLD patients with and without advanced fibrosis in primary care.

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As morbidity and mortality related to potentially preventable liver diseases are on the rise globally, early detection of liver fibrosis offers a window of opportunity to prevent disease progression. Early detection of non-alcoholic fatty liver disease allows for initiation and reinforcement of guidance on bodyweight management, risk stratification for advanced liver fibrosis, and treatment optimisation of diabetes and other metabolic complications. Identification of alcohol-related liver disease provides the opportunity to support patients with detoxification and abstinence programmes.

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Background: While ventricular-based timing modes are known to cause elevated atrial pacing above the lower rate when intrinsic atrioventricular (AV) conduction is shorter than programmed AV delay, there is one case report in 2015 by Jafri where rapid atrial pacing was induced in an Abbott device set DDI with a lower rate of 90 by an unsensed premature atrial complex and slow intrinsic AV conduction allowing pacemaker 'crossover.'

Case Summary: We present a very unusual case of rapid atrial pacing at >180 b.p.

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Introduction: The increasing availability of non-invasive tests (NITs) has created the opportunity to explore their use in improving risk stratification of advanced liver disease. The study aimed to determine the attitudes and practices among UK secondary care specialists, focusing primarily on attitudes to fibrosis assessment and the use of NITs.

Methods: Two web-based surveys were circulated, first between 2014 and 2015 (survey 1), and again in 2021 (survey 2).

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Background And Aims: Direct-acting antiviral (DAA) treatment has an established positive effect on liver outcomes in people with hepatitis C infection; however, there is insufficient evidence regarding its effects on the 'extra-hepatic' outcomes of drug-related hospitalization and mortality (DRM) among people who inject drugs (PWID). We investigated associations between these outcomes and DAA treatment by comparing post-treatment to baseline periods using a within-subjects design to minimize selection bias concerns with cohort or case-control designs.

Design: This was a self-controlled case-series study.

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Background: People Who Use Drugs (PWUD) are at high risk of non-fatal overdose and other drug-related harms. The United Kingdom drugs policy landscape makes it challenging to support those at risk. Tayside, in East Scotland, has a sizeable population at risk of drug-related harms.

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