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APT:ALT正常的慢乙肝患者肝纤维化比例仍较高

2014-02-25 佚名 丁香园

慢性乙型肝炎(CHB)可以导致肝硬化,肝癌和过早死亡。升高的丙氨酸转氨酶(ALT)水平≥标准上限(ULN)的上限是评估是否进行抗病毒治疗的主要决定因素,但是,单独ALT水平可能不是预测肝纤维化。但慢乙肝患者的ALT正常时,患者肝脏的纤维化情况究竟如何目前未有定论。来自斯坦福大学的研究人员对此进行了系统回顾与荟萃分析。 研究表明ALT ≤ 40 IU / L的慢乙肝患者,约五分之一可能有显

慢性乙型肝炎(CHB)可以导致肝硬化,肝癌和过早死亡。升高的丙氨酸转氨酶(ALT)水平≥标准上限(ULN)的上限是评估是否进行抗病毒治疗的主要决定因素,但是,单独ALT水平可能不是预测肝纤维化。但慢乙肝患者的ALT正常时,患者肝脏的纤维化情况究竟如何目前未有定论。来自斯坦福大学的研究人员对此进行了系统回顾与荟萃分析。

研究表明ALT ≤ 40 IU / L的慢乙肝患者,约五分之一可能有显著肝纤维化。该研究结果将发表在2014年2月份的Aliment Pharmacol Ther杂志上。

该研究的主要目标是确定慢性乙型肝炎患者中ALT ≤ 40IU/L ,肝纤维化分期≥ 2的患者的比例。次级目标包括根据如下指标进行了亚组分析。这些指标有乙肝e抗原(HBeAg)状态,高乙型肝炎病毒(HBV)DNA水平,亚洲种族,低ULN ≤30IU/L(男性)和19IU/L(女)和高龄。

研究人员在EMBASE和MEDLINE(1990年1月-2012年6月)收录的文献中检索。检索公式为:“乙肝”[主题词]OR“乙肝病毒”[主题词]OR“B型肝炎,慢性”[主题词] )AND “丙氨酸氨基转移酶”[主题词])。对近期美国举行的关于胃肠病学和肝组织的会议摘要也进行了检索,含有术语“肝炎”的也纳入了研究。

共有九个研究纳入了本次的荟萃分析(n = 830例)。当慢性乙型肝炎患者的ALT水平≤ 40 IU / L时,患者出现显著的纤维化的比例为20.7%.这个比例与以下因素无关。如HBeAg状态,高HBV DNA水平,种族或者年龄,尽管这一比例可能在30岁- 40岁以上的患者中要高。即使使用新的ULN标准(30IU/L(男性)和19IU/L(女)),这一比例为27.8%。

研究结果表明,ALT ≤ 40 IU / L的慢乙肝患者,约五分之一可能有显著肝纤维化。该结果提示医生对此类患者的治疗应个体化,这就需要进一步评估病情和治疗。

原始出处

Chao DT1, Lim JK, Ayoub WS, Nguyen LH, Nguyen MH.Systematic review with meta-analysis: the proportion of chronic hepatitis B patients with normal alanine transaminase ≤40 IU/L and significant hepatic fibrosis.Aliment Pharmacol Ther. 2014 Feb;

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