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急性胰腺炎(acute pancreatitis, AP)是急诊科常见的急危重症,其发病原因是病人体内胰酶蛋白被各种因素激活活化,进而导致胰腺组织出现自身消化现象的炎症性疾病,具有病情严重和疾病发展迅速等特点。目前临床上将AP分为轻度AP(mild acute pancreatitis, MAP)、中度AP(moderately severe acute pancreatitis, MSAP)及重度AP(severe acute pancreatitis, SAP),由于上述不同分级AP病人存在截然不同的临床特点及预后,故准确评估AP病人病情严重程度及预后对于指导治疗有着重要的意义[1-2]。CT严重指数(CT severity index, CTSI)是根据CT扫描检测结果用于评估AP病人病情严重程度的方法,其可有效观察胰腺实质及其周围坏死组织的病理改变,进而有助于评估AP病人的病情严重程度[3],近些年有研究认为改良CT严重指数(modified CT severity index, MCTSI)诊断SAP的敏感性和特异性优于CTSI[4]。抗凝血酶-Ⅲ(antithrombin-Ⅲ, AT-Ⅲ)是一种单链糖蛋白分子,主要由肝细胞、血管内皮细胞分泌和释放,研究发现脓毒血症及SAP病人疾病早期血清AT-Ⅲ表达水平明显下降[5-6]。因此本研究拟探讨血清AT-Ⅲ联合MCTSI在AP病人病情严重程度及预后评估中的价值。
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不同病情严重程度AP病人血清AT-Ⅲ水平及MCTSI评分比较差异均有统计学意义(P < 0.01),AP病人随着病情严重程度增加,血清AT-Ⅲ水平降低,而MCTSI评分增加(见表 1)。
分组 n AT-Ⅲ/(mg/L) MCTSI评分/分 MAP组 38 256.75±60.43 3.67±0.74 MSAP组 46 187.31±42.35** 5.05±1.13** SAP组 40 132.62±35.54**△△ 7.22±1.47**△△ F — 68.75 93.82 P — < 0.01 < 0.01 MS组内 — 2 190.786 1.338 q检验:与MAP组比较**P < 0.01;与MSAP组比较△△P < 0.01 表 1 不同病情严重程度AP病人血清AT-Ⅲ水平及MCTSI评分比较(x±s)
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死亡组病人血清AT-Ⅲ水平低于存活组,而MCTSI评分高于存活组(P < 0.01)(见表 2)。
分组 n AT-Ⅲ/(mg/L) MCTSI评分/分 存活组 110 193.87±73.32 4.76±1.47 死亡组 14 101.15±31.20* 7.93±1.17 t — 8.52 7.75 P — < 0.01 < 0.01 *示t′值 表 2 不同预后AP病人血清AT-Ⅲ水平及MCTSI评分比较(x±s)
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采用ROC曲线分析血清AT-Ⅲ、MCTSI评分单一及联合检测诊断SAP的临床价值,结果显示血清AT-Ⅲ联合MCTSI评分诊断SAP的AUC、敏感度及特异度均优于单一检测(见表 3、图 1)。
指标 截断值 敏感度/% 特异度/% 约登指数 AUC AT-Ⅲ/(mg/L) 150.72 80.0 71.4 0.51 0.782 MCTSI/分 6.05 82.5 76.2 0.59 0.815 AT-Ⅲ+MCTSI — 92.5 85.7 0.78 0.897 表 3 血清AT-Ⅲ联合MCTSI评分诊断SAP的价值分析
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采用ROC曲线分析血清AT-Ⅲ、MCTSI评分单一及联合检测预测AP病人死亡的临床价值,结果显示血清AT-Ⅲ联合MCTSI评分预测AP病人死亡的AUC、敏感度及特异度均优于单一检测(见表 4及图 2)。
指标 截断值 敏感度/% 特异度/% 约登指数 AUC AT-Ⅲ/(mg/L) 125.84 78.6 70.0 0.49 0.760 MCTSI/分 6.31 85.7 74.5 0.60 0.821 AT-Ⅲ+MCTSI — 92.9 81.8 0.75 0.875 表 4 血清AT-Ⅲ联合MCTSI预测AP病人死亡的价值分析
血清抗凝血酶Ⅲ联合改良CT严重指数评估急性胰腺炎严重程度及预后的价值
Value of serum antithrombin-Ⅲ combined with modified CT severity index in the evaluation of severity and prognosis of patients with acute pancreatitis
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摘要:
目的探讨血清抗凝血酶-Ⅲ(AT-Ⅲ)联合改良CT严重指数(MCTSI)评估急性胰腺炎(AP)病人病情严重程度及预后的价值。 方法124例AP病人根据病情严重程度分为MAP组(38例)、MSAP组(46例)、SAP组(40例),根据预后不同分为存活组(110例)、死亡组(14例)。比较各组AP病人血清AT-Ⅲ水平及MCTSI评分,采用ROC曲线分析血清AT-Ⅲ联合MCTSI评分诊断SAP和预测AP病人死亡的价值。 结果不同病情严重程度AP病人血清AT-Ⅲ水平及MCTSI评分比较差异均有统计学意义(P < 0.01),AP病人随着病情严重程度增加,血清AT-Ⅲ水平降低,而MCTSI评分增加(P < 0.01);死亡组病人血清AT-Ⅲ水平低于存活组,而MCTSI评分高于存活组,差异均有统计学意义(P < 0.01);血清AT-Ⅲ联合MCTSI评分评估AP严重程度和预测AP病人死亡的AUC、敏感度及特异度均优于单一检测。 结论血清AT-Ⅲ联合MCTSI在评估AP病人病情严重程度及预后方面具有较高的临床价值。 Abstract:ObjectiveTo study the value of the serum antithrombin-Ⅲ(AT-Ⅲ) combined with modified CT severity index(MCTSI) in the evaluation of severity and prognosis of patients with acute pancreatitis(AP). MethodsOne hundred and twenty-four AP patients were divided into the MAP group(38 cases), MSAP group(46 cases) and SAP group(40 cases) according to the severity of the disease, and the survival group(110 cases) and death group(14 cases) according to the prognosis.The serum levels of AT-Ⅲ and MCTSI scores among the groups were compared.The value of serum AT-Ⅲ combined with MCTSI in the diagnosis of SAP and predicting the death in patients with AP were analyzed using the ROC curve. ResultsThe differences of the serum levels of AT-Ⅲ and MCTSI scores among different disease severity of AP patients were statistically significant(P < 0.01).With the severity of disease increasing, the serum levels of AT-Ⅲ decreased, and the MCTSI scores increased(P < 0.01).The serum level of AT-Ⅲ in death group was significantly lower than that in survival group(P < 0.01), while the MCTSI score was significantly higher than that in survival group(P < 0.01).The AUC, sensitivity and specific degrees of serum AT-Ⅲ combined with MCTSI in the evaluation of AP severity and predicting of death in patients with AP were superior to single detection. ConclusionsThe serum AT-Ⅲ combined with MCTSI in the assessment of disease severity and prognosis of patients with AP has a higher clinical value. -
Key words:
- acute pancreatitis /
- antithrombin-Ⅲ /
- modified CT severity index
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表 1 不同病情严重程度AP病人血清AT-Ⅲ水平及MCTSI评分比较(x±s)
分组 n AT-Ⅲ/(mg/L) MCTSI评分/分 MAP组 38 256.75±60.43 3.67±0.74 MSAP组 46 187.31±42.35** 5.05±1.13** SAP组 40 132.62±35.54**△△ 7.22±1.47**△△ F — 68.75 93.82 P — < 0.01 < 0.01 MS组内 — 2 190.786 1.338 q检验:与MAP组比较**P < 0.01;与MSAP组比较△△P < 0.01 表 2 不同预后AP病人血清AT-Ⅲ水平及MCTSI评分比较(x±s)
分组 n AT-Ⅲ/(mg/L) MCTSI评分/分 存活组 110 193.87±73.32 4.76±1.47 死亡组 14 101.15±31.20* 7.93±1.17 t — 8.52 7.75 P — < 0.01 < 0.01 *示t′值 表 3 血清AT-Ⅲ联合MCTSI评分诊断SAP的价值分析
指标 截断值 敏感度/% 特异度/% 约登指数 AUC AT-Ⅲ/(mg/L) 150.72 80.0 71.4 0.51 0.782 MCTSI/分 6.05 82.5 76.2 0.59 0.815 AT-Ⅲ+MCTSI — 92.5 85.7 0.78 0.897 表 4 血清AT-Ⅲ联合MCTSI预测AP病人死亡的价值分析
指标 截断值 敏感度/% 特异度/% 约登指数 AUC AT-Ⅲ/(mg/L) 125.84 78.6 70.0 0.49 0.760 MCTSI/分 6.31 85.7 74.5 0.60 0.821 AT-Ⅲ+MCTSI — 92.9 81.8 0.75 0.875 -
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