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| The Diagnostic Value of CRP Combined with PCT in Postoperative Pulmonary Infection of Elderly Patients with Hip Fracture |
| NI Yu |
| The First Affiliated Hospital of Tsinghua University, Beijing Chaoyang District 100016, China |
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Abstract Objective: To investigate the changes of serum CRP and PCT levels in elderly patients with hip fracture and their diagnostic value in postoperative pulmonary infection. Method: 80 elderly patients with hip fracture treated with surgery were selected as the objects of observation. According to the occurrence of pulmonary infection, they were divided into the infection group (n=40) and the non-infection group (n=40).Immune turbidimetric method, chemiluminescence method were used respectively to measure CRP and PCT levels,before surgery, 12 hours after operation, postoperative 4 7 days, the change trend of the two kinds of indexes were observed, and evaluate the CRP and PCT specific degrees, the sensitivity of diagnosis of lung infection. Results: 12 hours after the operation, the CRP level in the infected group and the non-infected group was higher than that before the operation, and P<0.05.4 7 days postoperative infection group, CRP levels is increased after 12 hours, and P<0.05. 12 hours after the operation, the PCT level of the infected group and the non-infected group was significantly higher than that before the operation, and P<0.05. PCT level in the infection group 4 7 days after surgery was higher than that 12 hours after surgery, and P < 0.05.ROC curve analysis showed that the AUC values of the two detection indexes were 0.8238 and 0.9156 at the optimal boundary point, respectively. Both CRP and PCT had good accuracy in diagnosis. The diagnostic sensitivity of PCT was significantly higher than that of CRP, and the diagnostic specificity of CRP was slightly higher than that of PCT. Conclusion: CRP and PCT have high application value in the early diagnosis of elderly patients with postoperative hip fracture complicated by pulmonary infection.
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2020, Vol. 26 
