Dynamic Observation of Postoperative Infection and Neuron-specific Enolase Levels in Serum in Patients with Non-small Cell Lung Cancer According to Positron Emission Tomography-Computed Tomography.

Abstract This research aimed to analyze the dynamic changes of postoperative infection and neuron-specific enolase (NSE) levels in serum in non-small cell lung cancer (NSCLC) patients, and to provide assistance for the monitoring and diagnosis of NSCLC patients. 110 NSCLC patients from January 2017 to January 2019 were selected as the research objects. Preoperative Tumor node (TNM) staging was first recorded. Patients were examined by Positron Emission /Computed Tomography (PET/CT) and their Metabolic tumor volume (MTV) was recorded. Then, pulmonary infection was recorded every 12 hours on first three days after surgery. Finally, patients were followed up for 4 years to record their total survival time and 1-4 year survival rate. SPSS software was used to draw the Kaplan-Meier survival curve of patients, and Cox proportional hazard model was used to analyze the risk factors related to the prognosis of patients. The results showed that the higher the TNM stage, the shorter the patient's survival time; the infection rate decreased with the passage of time; the survival rate of patients with MTV less than 5.379 was significantly higher than that of patients with MTV greater than 5.379 (P