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一种在非洲预防、诊断和治疗乙型肝炎的新方法。

A new approach to prevent, diagnose, and treat hepatitis B in Africa.

作者信息

Spearman C Wendy, Andersson Monique I, Bright Bisi, Davwar Pantong M, Desalegn Hailemichael, Guingane Alice Nanelin, Johannessen Asgeir, Kabagambe Kenneth, Lemoine Maud, Matthews Philippa C, Ndow Gibril, Riches Nicholas, Shimakawa Yusuke, Sombié Roger, Stockdale Alexander J, Taljaard Jantjie J, Vinikoor Michael J, Wandeler Gilles, Okeke Edith, Sonderup Mark

机构信息

Division of Hepatology, Department of Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa.

Oxford University Hospitals NHS Foundation Trust, Oxford, UK.

出版信息

BMC Glob Public Health. 2023;1(1):24. doi: 10.1186/s44263-023-00026-1. Epub 2023 Nov 2.

Abstract

There are 82 million people living with hepatitis B (PLWHB) in the World Health Organization Africa region, where it is the main cause of liver disease. Effective vaccines have been available for over 40 years, yet there are 990,000 new infections annually, due to limited implementation of hepatitis B birth dose vaccination and antenatal tenofovir prophylaxis for highly viraemic women, which could eliminate mother-to-child transmission. Despite effective and cheap antiviral treatment which can suppress hepatitis B virus replication and reduce the risk of hepatocellular carcinoma (HCC), < 2% of PLWHB are diagnosed, and only 0.1% are treated. As a result, PLWHB are frequently diagnosed only when they have already developed decompensated cirrhosis and late-stage HCC, and consequently 80,000 hepatitis B-associated deaths occur each year. Major barriers include complex treatment guidelines which were derived from high-income settings, lack of affordable diagnostics, lack or insufficient domestic funding for hepatitis care, and limited healthcare infrastructure. Current treatment criteria may overlook patients at risk of cirrhosis and HCC. Therefore, expanded and simplified treatment criteria are needed. We advocate for decentralized community treatment programmes, adapted for low-resource and rural settings with limited laboratory infrastructure. We propose a strategy of treat-all except patients fulfilling criteria that suggest low risk of disease progression. Expanded treatment represents a financial challenge requiring concerted action from policy makers, industry, and international donor agencies. It is crucial to accelerate hepatitis B elimination plans, integrate hepatitis B care into existing healthcare programmes, and prioritize longitudinal and implementation research to improve care for PLWHB.

摘要

世界卫生组织非洲区域有8200万人感染乙肝病毒,乙肝是该地区肝病的主要病因。有效的乙肝疫苗已问世40多年,但由于乙肝疫苗首剂接种以及对高病毒载量孕妇进行产前替诺福韦预防措施的实施有限(而这两项措施可消除母婴传播),每年仍有99万新感染病例。尽管有有效且廉价的抗病毒治疗方法,可抑制乙肝病毒复制并降低肝细胞癌(HCC)风险,但只有不到2%的乙肝感染者得到诊断,接受治疗的仅占0.1%。因此,乙肝感染者往往在已发展为失代偿期肝硬化和晚期肝细胞癌时才被诊断出来,每年有8万人死于与乙肝相关的疾病。主要障碍包括源自高收入环境的复杂治疗指南、缺乏可负担得起的诊断方法、乙肝治疗的国内资金短缺或不足,以及医疗基础设施有限。当前的治疗标准可能会忽视有肝硬化和肝细胞癌风险的患者。因此,需要扩大并简化治疗标准。我们主张开展去中心化的社区治疗项目,以适应资源匮乏和农村地区实验室基础设施有限的情况。我们提出了一种“除符合疾病进展低风险标准的患者外,全部治疗”的策略。扩大治疗规模带来了财政挑战,需要政策制定者们、产业界和国际捐助机构共同采取行动。加快乙肝消除计划、将乙肝护理纳入现有医疗保健项目,并优先开展纵向研究和实施研究以改善对乙肝感染者的护理,至关重要。

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