HBV再激活的防与治梁树人ppt课件

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免疫抑制的后果
cccDNA
T cell T cell
HIV Steroids Chemotx
T cell
• Immune control can be lost • Immune-mediated liver damage with immune reconstitution
Werle-Lapostolle B, et al. Gastroenterology. 2004;126:1750-1758.
HBV能被清除吗?
T cell
cccDNA
T cell T cell
• Immune control—not clearance • “Resolved HBV” a misnomer—still HBV DNA in liver
Werle-Lapostolle B, et al. Gastroenterology. 2004;126:1750-1758.
慢ce HBV DNA
Immune Clearance
Immune Control (Nonreplicative)
HBeAg+ HBsAg+
ALT
5-30 Yrs
Mos-Yrs
Infection
Yim HJ, et al. Hepatology. 2006;43:S173-S181.
HBeAg- HBeAb+ HBsAg- HBsAb+
Mos-Yrs
HBV能被清除吗?
cccDNA
• Immune control—not clearance • “Resolved HBV” a misnomer—still HBV DNA in liver
Werle-Lapostolle B, et al. Gastroenterology. 2004;126:1750-1758.
HBV 再激活
HBeAg+
HBeAg-
Immunotolerance Immune Clearance
HBeAb+
HBV DNA
HBeAg+
ALT
5-30 Yrs
Infection
Mos-Yrs
Hoofnagle JH. Hepatology. 2009;49(5 suppl):S156-S165.
Mos-Yrs
HBV 再激活
HBeAg+
HBeAg- HBeAb+
Immunotolerance Immune Clearance
Immune Suppression
HBV DNA
HBeAg+
ALT
5-30 Yrs
Infection
Mos-Yrs
Hoofnagle JH. Hepatology. 2009;49(5 suppl):S156-S165.
Mos-Yrs
HBV 再激活
定义
1. HBsAg阳性患者: 血清HBVDNA由不可测变为可测,或超过基线水平≥1 log 10 HBeAg阴性转为阳性
2. HBsAg阴性/抗HBc阳性患者 血清HBsAg转阳 血清HBVDNA由不可测变为可测
Hoofnagle JH. Hepatology. 2009;49(5 suppl):S156-S165.
HBV 再激活
临床表现
可发生自亚临床到严重致死性肝炎等病变 HBVDNA水平升高,可伴有或不伴有HBeAg的出现 ALT升高(可为轻度或极其严重的升高) 尽管已经采取抗病毒治疗,仍可以进展至肝衰竭或死亡
未及时认识HBV再激活的后果
肝炎发作
• 可以是严重的,甚至是致命的 • 偶尔HBVDNA检测不到,主要是由于ALT升高时伴HBVDNA下降
免疫抑制的后果
cccDNA
T cell T cell
HIV Steroids Chemotx
T cell
• Immune control can be lost • Immune-mediated liver damage with immune reconstitution
Werle-Lapostolle B, et al. Gastroenterology. 2004;126:1750-1758.
– 可导致误诊,但是最终可出现肝炎复发 • 一旦ALT升高出现,病情可能就难以控制
化疗中断
• 肿瘤治疗结局不佳
Yeo W, et al. Hepatology. 2006;43:209-220.
HBV再激活的防与治
天津市第二人民医院 梁树人
Hepatitis B: Some Sobering Facts
Prevalence of HBsAg High ≥ 8% Intermediate 2% to 7% Low < 2%
• 350 million people chronically infected • 2 billion with evidence of past or present infection • Country of origin is THE major risk factor
World Health Organization. Hepatitis B Fact Sheet. Centers for Disease Control and Prevention. CDC Health Information for International Travel 2012. New York: Oxford University Press; 2012.
Mos-Yrs
HBV 再激活
HBeAg+
HBeAg- HBeAb+
Immunotolerance Immune Clearance
Immune Suppression
HBV DNA
HBeAg+ Immune Reconstitution
ALT
5-30 Yrs
Mos-Yrs
Infection
Hoofnagle JH. Hepatology. 2009;49(5 suppl):S156-S165.
HBV能被清除吗?
cccDNA
• Immune control—not clearance • “Resolved HBV” a misnomer—still HBV DNA in liver
Werle-Lapostolle B, et al. Gastroenterology. 2004;126:1750-1758.
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