NEWS评分在老年急性胰腺炎病情预测及预后评估中的价值

    The value of NEWS scoring in predicting the condition and evaluating prognosis of elderly acute pancreatitis

    • 摘要:
      目的: 探讨NEWS评分在老年急性胰腺炎(AP)病情预测及预后评估中的价值。
      方法: 回顾性收集216例老年AP病人作为研究对象,按病情严重程度分为SAP组(61例)和非SAP组(155例)。根据病人入院28 d存活情况分为存活组(200例)和死亡组(16例)。入院后收集病人的临床资料:年龄、性别、急性生理功能和慢性健康状况评分系统Ⅱ(APACHEⅡ)评分、AP严重程度床边指数(BISAP)、Ranson评分、NEWS评分及乳酸值。入院资料采用独立样本t检验,NEWS评分与APACHE II评分、Ranson评分、BISAP评分及乳酸采用Person相关性分析,绘制ROC曲线进行AP病人病情严重程度及28 d 死亡的预测分析;采用Kaplan-Meier 生存曲线分析不同NEWS评分水平危险分层下的累积生存率。
      结果: 非SAP组与SAP组病人性别差异无统计学意义(P > 0.05),SAP组病人的NEWS评分、乳酸水平、Ranson评分、BISAP评分及APACHEⅡ评分明显高于非SAP组,差异有统计学意义(P < 0.01);存活组与死亡组病人性别差异无统计学意义(P > 0.05),死亡组病人的NEWS评分、Ranson评分、乳酸水平、BISAP评分及APACHEⅡ评分明显高于存活组,差异有统计学意义(P < 0.01);AP病人NEWS评分与APACHE II评分、Ranson评分、BISAP评分及乳酸均具有显著正相关性(r = 0.845、0.866、0.758、0.883,P < 0.01);NEWS评分对预测SAP和28 d死亡风险的ROC曲线下面积(AUC)分别为0.609(95%CI:0.574~0.644)和0.794(95%CI:0.753~0.835);最佳截断值分别为0.222和0.477,对应的NEWS评分为8.5和7.5,敏感度分别为49.00%和81.20%,特异度分别为83.20%和66.50%;结合NEWS评分对预测SAP发生和28d死亡的ROC曲线最佳截断值,取中间值8.00为最新最佳截断值进行SAP的28d累积生存率分析,采用绘制 Kaplan-Meier生存曲线分析显示,NEWS评分>8.00组的28 d累积生存率显著低于NEWS评分≤8.00组(Log-Rank检验:χ2 = 37.31,P < 0.01)。
      结论: NEWS评分是AP病人病情严重程度及死亡风险的较好预测指标,可以作为临床AP病人病情评估系统的一个补充。特别是对于NEWS评分>8.00老年AP病人预测短期死亡风险较大,值得临床推广应用。

       

      Abstract:
      Objective To explore the value of NEWS scoring in predicting the condition and evaluating the prognosis of elderly acute pancreatitis (AP).
      Methods A total of 216 elderly patients with AP was selected as the research subjects, and divided into the SAP group (61 cases) and non-SAP group (155 cases) according to the severity of the disease. According to the survival status of the patients after 28 days of admission, they were divided into the survival group (200 cases) and death group (16 cases). After admission, the clinical data of patients were collected, which included the age, gender, Acute Physiological Function and Chronic Health Evaluation II (APACHE II) score, AP Severity Bedside Index (BISAP), Ranson score, NEWS score and lactate value. The admission data were analyzed using the independent sample t-test. The Person correlation analysis was conducted between the NEWS score and APACHE II score, Ranson score, BISAP score, lactic acid. The ROC curve was drawn to predict the severity of disease and 28-day mortality in AP patients. The Kaplan-Meier survival curve was used to analyze the cumulative survival rate under risk stratification at different NEWS score levels.
      Results There was no statistical significance in the gender between the non-SAP group and SAP group (P > 0.05). The NEWS score, lactate level, Ranson score, BISAP score and APACHEⅡ score in the SAP group were significantly higher than those in non-SAP group (P < 0.01). There was no statistical significance in the gender between the survival group and death group (P > 0.05). The NEWS score, Ranson score, lactate level, BISAP score and APACHEⅡ score in the death group were significantly higher than those in survival group (P < 0.01). The NEWS score of AP patients was significantly positively correlated with the APACHE II score, Ranson score, BISAP score and lactic acid (r = 0.845, 0.866, 0.758, 0.883, P < 0.01). The area under the ROC curve (AUC) of the NEWS score for predicting SAP and risk of 28-day mortality were 0.609 (95%CI: 0.574–0.644) and 0.794 (95%CI: 0.753–0.835), respectively. The optimal cut-off values were 0.222 and 0.477, the corresponding NEWS scores were 8.5 and 7.5, the sensitivities were 49.00% and 81.20%, and the specificities were 83.20% and 66.50%, respectively. Combined with the optimal cut-off value of the ROC curve for predicting the occurrence of SAP and 28-day mortality based on the NEWS score, the median value of 8.00 was taken as the latest optimal cut-off value for the 28-day cumulative survival rate analysis of SAP, and the Kaplan-Meier survival curve was plotted showed that the 28-day cumulative survival rate of the group with NEWS score > 8.00 was significantly lower than that of the group with NEWS score ≤8.00 (Log-Rank test: χ2 = 37.31, P < 0.01).
      Conclusions The NEWS score is a good predictor of the severity of disease and risk of death in patients with AP, and can be used as a supplement to the clinical assessment system for the condition of AP patients. Especially for elderly AP patients with a NEWS score > 8.00, the risk of short-term death is relatively high, which is worthy of clinical promotion and application.

       

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