富丽

[摘要] 目的 分析老年重癥社区获得性肺炎（CAP）入住ICU（重症监护室）患者血清B型钠尿肽（BNP）、降钙素原（PCT）、C反应蛋白（CRP）水平变化特点，探讨其临床意义。 方法 选取2017年6月～2019年6月我院收治入住ICU的老年重症CAP患者100例作为观察组，包括生存50例和死亡50例;选取同期未入住ICU的老年重症CAP患者100例作为对照组。检测两组患者入院时血清BNP、PCT、CRP水平及观察组入住ICU第1天和第5天血清BNP、PCT、CRP水平，比较其动态变化。 结果 入院时，观察组患者血清BNP（1622.34±10.93）pg/mL、PCT（50.54±11.43）ng/mL、CRP（81.34±10.01）ng/L明显高于对照组患者血清BNP（157.32±20.01）pg/mL、PCT（4.35±1.13）ng/mL、CRP（19.38±2.13）ng/L，观察组死亡患者血清BNP、PCT、CRP明显高于生存患者，死亡患者第5天血清BNP（1924.22±10.02）pg/mL、PCT（57.30±9.02）ng/mL、CRP（88.30±12.32）ng/L与第1天血清BNP（1891.20±56.59）pg/mL、PCT（61.20±8.92）ng/mL、CRP（90.03±19.22）ng/L比较，差异有统计学意义（P<0.05）。 结论 动态监测BNP、PCT、CRP水平指导临床诊治，有助于判断老年患者是否需要转入ICU强化治疗，值得临床推广使用。

[关键词] 老年重症社区获得性肺炎;ICU;血清B型钠尿肽;降钙素原;C反应蛋白

[中图分类号] R563.1          [文献标识码] A          [文章编号] 1673-9701（2020）16-0001-03

Change characteristics and clinical significance of serum B-type natriuretic peptide， procalcitonin and C-reactive protein in elderly patients with severe community-acquired pneumonia admitted to ICU

FU Li

Intensive Care Unit， the Second Hospital of Chaoyang in Liaoning Province， Chaoyang   122000， China

[Abstract] Objective To analyze the change characteristics of serum B-type natriuretic peptide（BNP）， procalcitonin（PCT） and C-reactive protein（CRP） levels in elderly patients with severe community-acquired pneumonia（CAP） admitted to intensive care unit（ICU） and explore the clinical significance. Methods 100 elderly patients with severe CAP admitted to ICU of our hospital from June 2017 to June 2019 were selected as the research subjects. They were divided into survival group（n=50） and death group（n=50）. 100 elderly patients with severe CAP who were not admitted to ICU during the same period were selected as the control group. The levels of serum BNP， PCT and CRP in the two groups of patients on the occasion of admission， and the dynamic changes of serum BNP， PCT and CRP in the survival group and the death group on the 1st and 5th day of admission to ICU were detected and compared. Results On the occasion of adminssion， serum BNP（1622.34±10.93） pg/mL， PCT（50.54±11.43） ng/mL， CRP（81.34±10.01） ng/L of the patients in the observation group were significantly higher than those in the control group [BNP （157.32±20.01） pg/mL， PCT （4.35±1.13） ng/mL， CRP（19.38±2.13） ng/L]. The serum BNP， PCT and CRP of the patients in the death group of the observation group were significantly higher than those of the survival patients. The serum BNP （1924.22±10.02） pg/mL， PCT（57.30±9.02） ng/mL， CRP（88.30±12.32） ng/L of the patients in the death group on the 5th day were significantly different from the serum BNP（1891.20±56.59） pg/mL， PCT（61.20±8.92） ng/mL，CRP（90.03±19.22） ng/L on the 1st day， and the difference was statistically significant（P<0.05）. Conclusion Tracing the dynamic changes of BNP， PCT and CRP levels is beneficial to judging whether elderly patients need intensive treatment in ICU and it helps guiding clinical diagnosis and treatment， so it is worthy of vigorous clinical promotion and application.

[Key words] Elderly patients with severe community-acquired pneumonia（CAP）; ICU; Serum B-type natriuretic peptide （BNP）;Procalcitonin （PCT）; C-reactive protein （CRP）

社区获得性肺炎（community-acquired pneumonia，CAP）是呼吸系统疾病之一，主要由于基础疾病的积累和免疫力低导致，有基础疾病的患者和老年人为高发人群，死亡率在50%以上，因此早期诊断、治疗尤为重要，及时、合理的方法可以有效改善患者病情、减轻其痛苦、降低病死率[1-3]。准确鉴别病因是有效治疗肺炎的关键，血清B型钠尿肽（BNP）、降钙素原（PCT）、C反应蛋白（CRP）为机体炎性标志物，联合检测能够判断机体感染以及感染程度。本文为进一步研究老年重症CAP入住ICU（重症监护室）患者BNP、PCT、CRP的变化，明确其作用及判断预后的价值，特选取朝阳市第二医院收治的200例患者进行研究，现报道如下。

1 资料与方法

1.1 一般资料

选取2017年6月～2019年6月朝阳市第二医院收治的老年重症CAP患者100例作为观……