瞬时弹性扫描检测慢性乙型肝炎病情严重程度的研究

目的 探讨瞬时弹性扫描(TE)诊断慢性乙型肝炎(CHB)肝纤维化状态的临床价值.方法 969例CHB患者纳入研究,均接受TE检查,其中258例还接受肝活检,117例接受胃镜检查食管静脉曲张情况.结果 35例患者因TE检查成功率低于60%或肝脏弹性值(LSM)四分位偏差值/LSM比值高于0.3而被剔除.影响LSM的因素包括胆红素、AST、肝纤维化分期、炎症分级、超声波评分及血白蛋白水平.TE预测肝硬化Child-PughC级、B/C级、肝纤维化分期S4、≥S3、≥S2的接受者操作特征(ROC)曲线下面积分别为0.907、0.920、0.871、0.852及0.807.LSM＜32.2 kPa时排除Child-Pugh C级的可能性为99.4%,LSM≥35.3 kPa时诊断Child-Pugh B/C级的可能性为82.0%.对于代偿性CHB,LSM临界值23.3、15.2及10.8 kPa诊断肝硬化、肝纤维化分期≥S3及≥S2的阳性似然比均接近10.0;LSM临界值8.8、6.6 kPa排除肝硬化、肝纤维化分期≥S3的阴性似然比接近0.1.LSM与食管静脉曲张分期的等级相关系数仅为0.180,TE预测食管静脉曲张的ROC曲线下面积似无临床意义.结论 TE可较准确预测CHB患者肝纤维化严重性及Child-Pugh等级,LSM≥10.8 kPa的患者应考虑抗病毒治疗.

Abstract：

Objective To evaluate the value of transient elastography (TE) for predicting severity of liver fibrosis in patients with chronic hepatitis B (CHB).Methods A total of 969 patients with CHB was enrolled and recruited for analysis,which had been received TE scan,including 258 patients of liver biopsy,and 117 patients of gastric endoscopy.Results A total of 35 patients was excluded from analysis due to TE failure or unreliable TE.Liver stiffness measurement (LSM) was independently influenced by bilirubin,AST,liver fibrosis and inflammation,ultrasonic score and albumin.TE predicted Child-Pugh C,B/C,liver fibrosis S4,≥S3 and ≥ S2 with respective area under receiver operating characteristics curves (AUROC)0.907 (95% CI 0.886-0.928 ),0.920 ( 95% CI 0.899-0.940 ),0.871 ( 95% CI 0.819-0.923 ),0.852(95%CI0.805-0.899) and 0.807(95% CI0.749-0.865),respectively.While LSM ＜32.2 kPa excluded Child-Pugh C with 99.4% probability,LSM ≥35.3 kPa determined Child-Pugh B/C with positive predictive value (PPV) 0.820.For compensated CHB,cut-offs of LSM 23.3,15.2 and 10.8 kPa diagnosed cirrhosis,liver fibrosis ≥S3 and ≥S2 with positive likelihood ratio nearly 10.0 and PPV 0.692,0.882 and 0.980,respectively; and cut-offs 8.8 kPa,6.6 kPa excluded cirrhosis,liver fibrosis ≥ S3 with negative likelihood ration nearly 0.1 and negative predictive value 0.977 and 0.903,respectively.Correlation coefficient between LSM and grades of esophageal varices was only 0.180,and AUROC for TE predicting EV was of no clinical value.ConclusionTE relatively make accurate prediction in the severity of liver fibrosis and classification of Child-Pugh.Patients with LSM ≥ 10.8 kPa should be considered for receiving antivirus treatment.

Transient elastography accurately predicts the severity of disease in patients with chronic hepatitis B

Objective To evaluate the value of transient elastography (TE) for predicting severity of liver fibrosis in patients with chronic hepatitis B (CHB).Methods A total of 969 patients with CHB was enrolled and recruited for analysis,which had been received TE scan,including 258 patients of liver biopsy,and 117 patients of gastric endoscopy.Results A total of 35 patients was excluded from analysis due to TE failure or unreliable TE.Liver stiffness measurement (LSM) was independently influenced by bilirubin,AST,liver fibrosis and inflammation,ultrasonic score and albumin.TE predicted Child-Pugh C,B/C,liver fibrosis S4,≥S3 and ≥ S2 with respective area under receiver operating characteristics curves (AUROC)0.907 (95% CI 0.886-0.928 ),0.920 ( 95% CI 0.899-0.940 ),0.871 ( 95% CI 0.819-0.923 ),0.852(95%CI0.805-0.899) and 0.807(95% CI0.749-0.865),respectively.While LSM ＜32.2 kPa excluded Child-Pugh C with 99.4% probability,LSM ≥35.3 kPa determined Child-Pugh B/C with positive predictive value (PPV) 0.820.For compensated CHB,cut-offs of LSM 23.3,15.2 and 10.8 kPa diagnosed cirrhosis,liver fibrosis ≥S3 and ≥S2 with positive likelihood ratio nearly 10.0 and PPV 0.692,0.882 and 0.980,respectively; and cut-offs 8.8 kPa,6.6 kPa excluded cirrhosis,liver fibrosis ≥ S3 with negative likelihood ration nearly 0.1 and negative predictive value 0.977 and 0.903,respectively.Correlation coefficient between LSM and grades of esophageal varices was only 0.180,and AUROC for TE predicting EV was of no clinical value.ConclusionTE relatively make accurate prediction in the severity of liver fibrosis and classification of Child-Pugh.Patients with LSM ≥ 10.8 kPa should be considered for receiving antivirus treatment.