Departamento de Gastroenterologia, Escuela de Medicina, Pontificia Universidad Catolica de Chile, Santiago, Chile; Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA.
Instituto Chileno Japonés de Enfermedades Digestivas, Facultad de Medicina, Universidad de Chile, Hospital Clínico San Borja Arriarán, Santiago, Chile.
Ann Hepatol. 2019 May-Jun;18(3):518-535. doi: 10.1016/j.aohep.2019.04.005. Epub 2019 Apr 18.
Alcohol-related liver disease (ALD) is a major cause of advanced chronic liver disease in Latin-America, although data on prevalence is limited. Public health policies aimed at reducing the alarming prevalence of alcohol use disorder in Latin-America should be implemented. ALD comprises a clinical-pathological spectrum that ranges from steatosis, steatohepatitis to advanced forms such as alcoholic hepatitis (AH), cirrhosis and hepatocellular carcinoma. Besides genetic factors, the amount of alcohol consumption is the most important risk factor for the development of ALD. Continuous consumption of more than 3 standard drinks per day in men and more than 2 drinks per day in women increases the risk of developing liver disease. The pathogenesis of ALD is only partially understood and recent translational studies have identified novel therapeutic targets. Early forms of ALD are often missed and most clinical attention is focused on AH, which is defined as an abrupt onset of jaundice and liver-related complications. In patients with potential confounding factors, a transjugular biopsy is recommended. The standard therapy for AH (i.e. prednisolone) has not evolved in the last decades yet promising new therapies (i.e. G-CSF, N-acetylcysteine) have been recently proposed. In both patients with early and severe ALD, prolonged abstinence is the most efficient therapeutic measure to decrease long-term morbidity and mortality. A multidisciplinary team including alcohol addiction specialists is recommended to manage patients with ALD. Liver transplantation should be considered in the management of patients with end-stage ALD that do not recover despite abstinence. In selected cases, increasing number of centers are proposing early transplantation for patients with severe AH not responding to medical therapy.
酒精相关性肝病(ALD)是拉丁美洲晚期慢性肝病的主要病因,但有关患病率的数据有限。应该实施旨在减少拉丁美洲令人震惊的酒精使用障碍患病率的公共卫生政策。ALD 包含一个临床病理谱,范围从脂肪变性、脂肪性肝炎到晚期形式,如酒精性肝炎(AH)、肝硬化和肝细胞癌。除了遗传因素外,饮酒量是导致 ALD 发展的最重要危险因素。男性每天连续饮用超过 3 标准饮品,女性每天超过 2 标准饮品会增加患肝病的风险。ALD 的发病机制尚未完全了解,最近的转化研究已经确定了新的治疗靶点。早期形式的 ALD 常常被忽视,大多数临床注意力集中在 AH 上,AH 定义为黄疸和与肝脏相关的并发症突然发作。对于有潜在混杂因素的患者,建议进行经颈静脉肝活检。AH 的标准治疗(即泼尼松龙)在过去几十年中没有发展,但最近提出了有前途的新疗法(即 G-CSF、N-乙酰半胱氨酸)。在早期和严重 ALD 的患者中,长期禁欲是降低长期发病率和死亡率的最有效治疗措施。建议多学科团队包括酒精成瘾专家来管理 ALD 患者。对于尽管禁欲仍未恢复的终末期 ALD 患者,应考虑进行肝移植。在一些选定的情况下,越来越多的中心正在为对药物治疗无反应的严重 AH 患者提出早期移植的建议。