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目的探讨重症肺炎患者早期血乳酸水平改变对患者预后的影响。方法 100例重症肺炎患者随机分为观察组(生存患者)和对照组(死亡患者)。测定所选患者入院时、入院后6 h、入院后24 h动脉血乳酸水平,计算所选患者的入院6 h乳酸清除率。结果观察组入院时、入院6 h和入院24 h的血乳酸水平均低于同期对照组血乳酸水平,差异有统计学意义(P<0.05);观察组入院6 h乳酸清除率高于对照组,差异有统计学意义(P<0.05)。和低乳酸清除率患者相比,乳酸清除率高的患者其死亡率低,差异有统计学意义(P<0.05)。结论检测重症肺炎患者的血乳酸水平有助于了解患者的预后情况,血乳酸清除率低的患者死亡率高。
Objective To investigate the effect of early changes of blood lactic acid in patients with severe pneumonia on the prognosis of patients. Methods One hundred patients with severe pneumonia were randomly divided into observation group (survival group) and control group (death group). The selected patients were admitted to hospital, 6 h after admission, 24 h after admission, arterial blood lactate levels, calculated for the selected patients 6 h lactic acid clearance. Results At the admission of observation group, the blood lactic acid levels at 6 h admission and 24 h admission were lower than those in the control group at the same period (P 0. 05). The lactic acid clearance rate of the observation group 6 h after admission was higher than that of the control group , The difference was statistically significant (P <0.05). Compared with patients with low lactate clearance rate, patients with high lactate clearance rates had a lower mortality rate (P <0.05). Conclusion Detection of blood lactate levels in patients with severe pneumonia can help to understand the prognosis of patients with high mortality rate of patients with low blood lactate clearance rate.