目的 探讨血清降钙素原在老年心衰合并肺炎患者抗感染治疗中的价值。方法 选择2016年3月-2017年3月我院收 治的84例老年心衰并肺炎患者作为研究对象，采用随机数字表作为分组方法将其分为对照组(42例)与研究组(42 例)。对照组根据临床症状与病情实施抗感染治疗，研究组在此基础上应用血清降钙素指导抗感染的应用时机。结 果 经相应治疗后，研究组红细胞沉降率(erythrocyte sedimentation rate,ESR)与C型反应性蛋白(C-reactive protein,CRP)水平均低于对照组(P<0.05)。研究组抗感染疗程、住院费用、抗菌药物费用均低于对照组(P<0.05)； 两组住院时间对比差异无统计学意义(P>0.05)。结论 血清降钙素在老年心衰合并肺炎患者抗感染治疗中具有显著 的应用价值，适于临床推广。

Objective To investigate the value of procalcitonin on anti-infections treatment in aged cardiac failure combined with pneumonia. Methods 84 cases of aged cardiac failure combined with pneumonia in our hospital from March 2016 to March 2017 were selected and divided into control group (42 cases) and observation group (42 cases) according to random number table. Control group was given anti-infections treatment based on clinical symptoms and illness condition, observation group was given procalcitonin on basis of control group. Results After corresponding treatment, ESR, CRP level of observation group were all lower than control group (P<0.05). Anti-infections course, hospitalization costs, antibacterial agents costs of observation group were all lower than control group (P<0.05). The difference of hospital stays between the two groups had no statistic significance (P>0.05). Conclusion Procalcitonin has significant effect on anti-infections treatment in aged cardiac failure combined with pneumonia and is suitable for clinic promotion