肺栓塞严重程度指数联合肌钙蛋白Ⅰ对肺栓塞病情严重程度的预测价值
发布时间:2018-06-29 08:42
本文选题:急性肺栓塞 + PES ; 参考:《山西医科大学》2012年硕士论文
【摘要】:目的探讨肺栓塞严重程度指数(PESI)、血浆肌钙蛋白I(cTnI)单独及联合试验对肺栓塞(PE)病情严重程度的预测价值。 方法研究对象为山西医科大学第一医院呼吸科经CTPA和/或肺通气/灌注扫描确诊的245例PE患者,分别根据PESI评分、入院cTnI水平及两者联合进行分组,比较各组大、次大面积与非大面积PE的发生率,评价以上各指标单独与联合对PE病情严重程度的预测价值。同时绘制受试者工作特征曲线(ROC曲线),分别评价PESI评分、cTnI单独及其联合对PE病情严重程度的预测效能。 结果①PESI分组Ⅰ级、Ⅱ级(低危组)均为非大面积PE,Ⅰ级与Ⅱ级PE发生率差异均无统计学意义(P>0.05);Ⅲ级(中危组)非大面积PE占42.5%,大、次大面积PE占57.5%;Ⅳ级、Ⅴ级(高危组)大、次大面积PE发生率分别为92.5%与100%,Ⅳ级与Ⅴ级PE发生率差异均无统计学意义(P>0.05)。重新分组后低危、中危与高危各组大、次大面积PE发生率随组别增高而升高(P<0.001)。PESI评分高危组阳性预测值96.9%,阴性预测值3.1%,敏感度100%,特异度95.2%;中危组阳性预测值57.5%,阴性预测值42.5%,敏感度57.9%,特异度69.2%;低危组阳性预测值0%,阴性预测值100%,敏感度100%,特异度28.7%;②cTnI阳性组大、次大面积PE占98.2%,非次大面积PE占1.8%,cTnI阴性组大、次大面积PE占5.9%,非次大面积PE占94.1%,两组间各型PE比较差异具有统计学意义(P<0.001)。其中cTnI阳性组阳性预测值98.2%,阴性预测值1.8%,敏感度89.1%,特异度36.5%;cTnI阴性组阳性预测值5.9%,阴性预测值94.1%,敏感度48%,特异度79.6%;③联合试验:低危组联合cTnI阳性其大、次大面积PE占0%,非次大面积PE占0%,阳性预测值0%,阴性预测值0%;低危组联合cTnI阴性其大、次大面积PE占0%,非次大面积PE占100%,阳性预测值0%,阴性预测值100%,敏感度100%,特异度40.1%;中危组联合cTnI阳性其大、次大面积PE占94.1%,非次大面积PE占5.9%,阳性预测值94.1%,阴性预测值5.9%,,敏感度30.1%,特异度94.3%;中危组联合cTnI阴性其大、次大面积PE占41.2%,非次大面积PE占58.8%,阳性预测值41.2%,阴性预测值58.8%,敏感度70.6%,特异度65.9%;高危组联合cTnI阳性其大、次大面积PE占98.9%,非次大面积PE占1.1%,阳性预测值98.9%,阴性预测值1.1%,敏感度25.6%,特异度96.1%;高危组联合cTnI阴性其大、次大面积PE占33.3%,非次大面积PE占66.7%,阳性预测值33.3%,阴性预测值66.7%,敏感度50.5%,特异度91.4%。④PESI评分ROC曲线下面积AUC=0.801(95%CI,0.721-0.884),cTnI的ROC曲线下面积AUC=0.692(95%CI,0.610-0.775),PESI评分联合cTnI的ROC曲线下面积AUC=0.904(95%CI,0.820-0.981),以上两两比较,差异均有统计学意义(P<0.001)。 结论PESI评分高危组对大、次大面积PE有较大的预测价值。单独应用cTnI预测PE病情严重性的临床价值不大,PESI评分联合cTnI测定较其单独应
[Abstract]:Objective to evaluate the prognostic value of pulmonary embolism severity index (PESI) and plasma troponin I (cTnI) in predicting the severity of pulmonary embolism (PE). Methods 245 patients with PE diagnosed by CTPA and / or pulmonary ventilation / perfusion scan in the first Hospital of Shanxi Medical University were divided into two groups according to PESI score, cTnI level and their combination. The incidence rate of sub-large area PE and non-large area PE was evaluated to evaluate the predictive value of the above indexes for the severity of PE. At the same time, the operating characteristic curve (ROC curve) was drawn to evaluate the predictive effectiveness of PESI score cTnI alone and its combination in predicting the severity of PE. Results 1the incidence rate of PE in grade 鈪
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