早期动态监测肝素结合蛋白对老年脓毒症患者预后的预测价值

Early dynamic monitoring of the predictive value of heparin-binding protein in elderly patients with sepsis

目的:评估早期动态监测血浆肝素结合蛋白(heparin-binding protein, HBP)水平对65周岁及以上老年脓毒症患者临床预后的预测价值。方法:选取2021年9月1日—2022年8月31日入住潍坊医学院附属医院重症医学科(intensive care unit, ICU)并诊断为脓毒症的老年患者107例。记录患者转入ICU时的一般人口学特征、基本生命体征及相关化验指标,并在转入后24 h内完成SOFA评分和APACHEⅡ评分。检测患者转入ICU时(D0)、转入后24 h(D1),转入后48 h(D2)的血浆HBP水平,并计算HBP的24 h变化率(24c)及48 h变化率(48c)。根据患者28 d内的预后情况,分为存活组和死亡组。绘制ROC曲线评价不同时间点的血浆HBP水平及变化率对老年脓毒症患者预后的预测价值,采用Kaplan-Meier生存曲线分析生存率的差异,使用Cox回归分析相关指标与患者预后不良的关系。结果:死亡组患者入院时的SOFA评分和APACHEⅡ评分较存活组高,差异均有统计学意义(P<0.001);死亡组的白蛋白水平相对较低,差异有统计学意义(P<0.001);与存活组相比,死亡组患者D0(P=0.012)、D1(P<0.001)、D2(P<0.001)的血浆HBP水平更高,且存活组患者的HBP水平在48 h内明显下降,而死亡组患者的HBP水平下降速度较慢甚至仍然保持在较高的水平,两组患者HBP 24c和48c差异有统计学意义(P<0.05);血浆HBP的48c、D2、D1、24c、D0预测患者预后不良的AUC依次为0.870、0.817、0.760、0.705、0.658;当HBP的48c截断值为-24.2%时,其约登指数为0.631,综合比较后最有诊断价值;绘制HBP 48c为-24.2%时的Kaplan-Meier曲线,患者HBP 48c>-24.2%时生存率更低(P<0.05);Cox回归分析显示SOFA评分和APACHEⅡ评分升高、白蛋白水平降低及HBP 24c和48c升高是患者预后不良的危险因素。结论:血浆HBP 48 h变化率能较好的反映老年脓毒症患者的预后,在临床中可以动态监测老年脓毒症患者的血浆HBP水平,以便早期识别可能预后不良的患者。

Objective To evaluate the predictive value of early dynamic monitoring of plasma heparin-binding protein(HBP)levels on the clinical prognosis of sepsis in patients over 65 years of age(including 65 years).Methods A total of 107 elderly patients admitted to the ICU of the Affiliated Hospital of Weifang Medical University from September 1,2021 to August 31,2022 and diagnosed with sepsis were selected.The general demographic characteristics,basic vital signs and related laboratory indicators were recorded when the patients were transferred to the ICU,and the SOFA score and APACHEⅡscore were completed within 24 hours after the transfer.The plasma HBP levels were detected when the patients were transferred to ICU(D0),24 h after transfer(D1),and 48 h after transfer(D2).Meanwhile,the 24 h change rate(24c)and 48 h change rate(48c)of HBP were calculated.According to the prognosis of patients within 28 days,they were divided into survival group and death group.The receiver operating characteristic curve(ROC)was drawn,and then the predictive value of plasma HBP levels and change rates at different time spots on the prognosis of elderly patients with sepsis were evaluated.Kaplan-Meier survival curves were used to analyze the differences in survival rates,and Cox regression was used to analyze the relationship between related indicators and poor prognosis of patients.Results The SOFA score and APACHEⅡscore of the patients in the death group were higher than those in the survival group,and the differences were all statistically significant(P<0.001).The albumin level was lower in the death group,and the difference was statistically significant(P<0.001).Compared with the survival group,the plasma HBP levels at D0(P=0.012),D1(P<0.001)and D2(P<0.001)were higher in the death group;And the HBP level of patients in the survival group decreased significantly within 48 hours,but decreased slowly or even remained at a high level in the death group,there were statistically significant differences between the two groups in HBP 24c and 48c(P<0.05).The AUC of plasma HBP 48c,D2,D1,24c,and D0 in predicting poor prognosis of patients were 0.870,0.817,0.760,0.705,and 0.658,respectively.When the HBP 48c cut off value was-24.2%,its Youden index was 0.631,which is the most diagnostic value after comprehensive comparison.The Kaplan-Meier curve was drawn when HBP 48c was-24.2%,and the survival rate of patients with HBP 48c>-24.2%was lower(P<0.05).Cox regression analysis showed that the increase of SOFA score and APACHEⅡscore,decrease of albumin level and increase of HBP 24c and 48c were the influencing factors of poor prognosis of patients.Conclusion Plasma HBP 48c can better reflect prognosis of elderly patients with sepsis,which suggested that in clinical practice,the plasma HBP levels of elderly patients with sepsis can be dynamically monitored,and patients with poor prognosis can be identified early.