Department of Gastroenterology and Hepatology and The Digestive Disease Institute and the Cleveland Clinic Lerner College of Medicine at Case Western University, Cleveland, Ohio 44195, USA.
J Dig Dis. 2011 Aug;12(4):257-62. doi: 10.1111/j.1751-2980.2010.00470.x.
Alcohol is the most commonly used hepatotoxin worldwide. About 90% of heavy drinkers (more than 60 g/day of alcohol) show evidence of fatty livers, while only 10-35% develop alcoholic hepatitis and 5-15% developed cirrhosis. The daily intake of alcohol that results in liver injury varies and depends on a number of risk factors. Alcoholic disease developes at lower doses in females, Hispanic, obese objects, and patients with hepatitis C. Insights into the pathogenesis of alcohol-induced liver injury has improved significantly but the translation into clinical benefit has been slow. The importance of continued abstinence and correction of nutritional deficiencies are major components in the long-term management of liver disease. Alcohol hepatitis has a variable mortality and the prognosis is determined most commonly by the modified discriminant function. The mocel of end-stage liver disease (MELD) is being increasingly used to predict outcome in alcoholic hepatitis even though standard cut offs are not available. Anti-inflammatory therapy with corticosteroids and anticytokine therapy with corticosteroids and pentoxifylline are effective for patients with severe alcoholic hepatitis. Patients with endstage liver disease should be considered for liver transplantation. Six months of abstinence is considered to be a requirement prior to transplant, but this length of time may be adjusted in individual bases.
酒精是全球范围内最常用的肝毒素。约 90%的重度饮酒者(每天饮酒超过 60 克)出现脂肪肝的证据,而只有 10-35%发展为酒精性肝炎,5-15%发展为肝硬化。导致肝损伤的酒精日摄入量因人而异,取决于许多危险因素。女性、西班牙裔、肥胖者和丙型肝炎患者在较低剂量时就会患上酒精性疾病。对酒精性肝损伤发病机制的深入了解有了显著提高,但转化为临床益处的速度却很慢。持续戒酒和纠正营养缺乏是长期肝病管理的重要组成部分。酒精性肝炎的死亡率变化不定,预后通常由改良判别函数决定。终末期肝病模型(MELD)越来越多地用于预测酒精性肝炎的预后,尽管没有标准的截止值。皮质类固醇的抗炎治疗和皮质类固醇与己酮可可碱的抗细胞因子治疗对重症酒精性肝炎患者有效。终末期肝病患者应考虑进行肝移植。在进行移植之前,需要有 6 个月的戒酒期,但这个时间可能会根据个人情况进行调整。
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