急诊社区获得性肺炎患者PaCO2水平与预后的关系研究

2017-07-13 16:26:10王雷
中外医疗 2017年15期
关键词:社区获得性肺炎关系

王雷

[摘要] 目的 研究急诊社区获得性肺炎(CAP)患者动脉二氧化碳分压(PaCO2)水平与预后的关系。方法 方便选取该院2016年1月—2017年1月急診CAP患者227例,根据治疗28 d病情转归分为存活组、死亡组,根据入院时PaCO2水平高、低、正常分为高水平组、低水平组和正常组,收集患者临床症状、体征、影像等资料,采用单因素和Pearson 相关性分析其相关性。 结果 ①死亡组高PaCO2水平和低PaCO2水平患者的构成比例分别为16.84%、38.78%高于存活组的25.81%、61.29%,使用呼吸机患者构成比例为67.74%,高于存活组的9.69%,合并COPD患者占29.03%,多于存活组的5.61%(P<0.05)。②根据PaCO2水平分组,低水平组、高水平组PaO2<60 mmHg患者构成比例分别为16.84%、53.66%,均高于正常组的3.30%(P<0.05)。低水平组呼吸机使用率、死亡率分别为23.16%、18.95%,高水平组分别为26.83%、21.95%,均高于正常组的7.69%、4.40%(P<0.05)。③相关性分析显示,高PaCO2水平与预后呈负相关(r=-0.767,P=0.011),低PaCO2水平与预后呈正相关(r=0.614,P=0.019), 结论 PaCO2水平与急诊CAP患者预后相关,是患者死亡的危险因素之一,及早控制PaCO2水平波动可能对改善预后有帮助。

[关键词] 急诊;社区获得性肺炎;PaCO2;预后;关系

[中图分类号] R563 [文献标识码] A [文章编号] 1674-0742(2017)05(c)-0037-03

[Abstract] Objective To research the correlation between the PaCO2 level and prognosis of patients with emergency community acquired pneumonia. Methods 227 cases of emergency CAP patients in our hospital from January 2016 to January 2017 were convenient selected and divided into the survival group and the death group according to the 28 d disease outcome and PaCO2 level at admission, and the clinical symptoms, vital signs and imaging data were collected and the correlation was analyzed by the single-factor and Pearson analysis. Results The ratio of high PaCO2 level and low PaCO2 level in the death group was higher than that in the survival group(16.84%、38.78% vs 25.81%,61.29%),The death group had a higher propertion of the patients with the breathing machine than the survival group (67.74% vs 9.69%), and the patients with COPD was more than that in the survival group(29.03% vs 5.61%)(P<0.05), and the ratio of patients whose PaO2 < 60 mmHg in the low-level group and high-level group was higher than that in the normal group(16.84%,53.66% vs 3.30%)(P<0.05), and the respirator use rate and death rate in the low-level group and in the high-level group were higher than those in the normal group(23.16%,18.95%,26.83%,21.95% vs 7.69%,4.40%)(P<0.05), and the correlation analysis showed that the high PaCO2 level had a negative correlation with the prognosis(r=-0.767, P=0.011), and the low PaCO2 level had a positive correlation with the prognosis,(r=0.614,P=0.019). Conclusion The PaCO2 level is correlated with the prognosis of emergency CAP patients, which is one of the risk factors of death, and the early control of PaCO2 level fluctuation may be help to improve the prognosis.

[Key words] Emergency; Community acquired pneumonia; PaCO2; Prognosis; Correlation

社区获得性肺炎(CAP)是常见的感染性疾病[1]。已有研究证明,血乳酸水平可间接反映微循环障碍,是肺部组织缺血或灌注不足的敏感指标[2]。C-反應蛋白、降钙素原是感染性疾病的预测指标[3],但在CAP发病早期, 患者可出现器官组织缺氧,而血乳酸、C-反应蛋白、降钙素原升高相对滞后。二氧化碳分压(PaCO2)可及时反映机体组织中细胞的缺氧状态,但是否与预后有关目前尚不明确,国内对此的研究极少。笔者收集该院2016年1月—2017年1月急诊227例CAP患者入院时PaCO2水平等资料,对其与预后的关系进行分析,现报道如下。

1 资料与方法

1.1 一般资料

方便选取该院急诊CAP患者227例作为研究对象。纳入标准:①年龄≥18岁;②符合2007 年美国感染疾病学会(IDSA)/美国胸科医师学会(ATS)指南中CAP诊断标准[4];排除标准:①住院时间少于14 d;②入院时已在其它医院接受过治疗者;③应用糖皮质激素患者;④中途放弃治疗离院者。……

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