无创模型预测HBeAg阳性慢性乙型肝炎患者的明显纤维化

来源 :世界核心医学期刊文摘(胃肠病学分册) | 被引量 : 0次 | 上传用户:jerry1121
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A model was constructed consisting of clinical and serum variables to discriminate between hepatitis B e antigen (HBeAg) positive chronic hepatitis B (CHB) patients with and without significant fibrosis (stages 2- 4 vs. stages 0- 1). Consecutive treatment-naive CHB patients who underwent liver biopsy were divided into 2 sequential groups: a training group (n = 200) and a validation group (n = 172). Multivariate analysis identified α 2- macroglobulin, age, gamma glutamyl transpeptidase, and hyaluronic acid as independent predictors of fibrosis. The area under the receiver operating characteristic curve was 0.84 for the training group and 0.77 for the validation group. Using a cutoff score of< 3.0, the presence of significant fibrosis (F2 to F4) could be excluded with high accuracy (86.1% negative predictive value [NPV], 70.1% positive predictive value [PPV], and 94.8% sensitivity) in 43 (21.5% ) of 200 patients in the training group, and with the same certainty (90.9% NPV, 64.7% PPV, and 98.0% sensitivity) in 22 (12.8% ) of 172 patients in the validation group. Similarly, applying a cutoff score of >8.7, the presence of significant fibrosis could be correctly identified with high accuracy (91.1% PPV, 51.6% NPV, and 95.2% specificity) in 41 (20.5% ) of 200 patients in the training group, and with the same certainty (84.8% PPV, 52.4% NPV, and 90.4% specificity) in 39 (22.7% ) of 172 patients of the validation group. In conclusion, a predictive model with a combination of easily accessible variables identified HBeAg-positive CHB patients with and without significant fibrosis with a high degree of accuracy. Application of this model may decrease the need for liver biopsy in staging of 35.5% CHB. A model was constructed consisting of clinical and serum variables to discriminate between hepatitis B e antigen (HBeAg) positive chronic hepatitis B (CHB) patients with and without significant fibrosis (stages 2-4 vs. stages 0-1). Consecutive treatment-naive CHB patients who underwent liver biopsy were divided into 2 sequential groups: a training group (n = 200) and a validation group (n = 172). Multivariate analysis identified α 2- macroglobulin, age, gamma glutamyl transpeptidase, and hyaluronic acid as independent predictors of fibrosis. The area under the receiver operating characteristic curve was 0.84 for the training group and 0.77 for the validation group. Using a cutoff score of <3.0, the presence of significant fibrosis (F2 to F4) could be excluded with high accuracy ( Positive predictive value [NPV], 70.1% positive predictive value [PPV], and 94.8% sensitivity in 43 (21.5%) of 200 patients in the training group, and with the same certainty (90.9% NPV, 64.7% PPV a nd 98.0% sensitivity in 22 patients (12.8%) of 172 patients in the validation group. Similarly, applying a cutoff score of> 8.7, the presence of significant fibrosis could be identified identified with high accuracy (91.1% PPV, 51.6% NPV, and 95.2% specificity in 41 (20.5%) of 200 patients in the training group, and with the same certainty (84.8% PPV, 52.4% NPV, and 90.4% specificity) in 39 group. In conclusion, a predictive model with a combination of easily accessible variables identified HBeAg-positive CHB patients with and without significant fibrosis with a high degree of accuracy. Application of this model may decrease the need for liver biopsy in staging of 35.5% CHB .
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