ABSTRACT
Objective:To analyze the clinical features of persistent inflammation-immunosuppression-catabolic syndrome(PICS)in patients with lung cancer and explore possible risk factors.Methods:The total of 109 lung cancer patients with hospital stay >14 d in the First Affiliated Hospital of Soochow University from September 2017 to June 2020 were selected as study subjects.According to the PICS diagnostic criteria, the patients were divided into the PICS group(43 cases)and non-PICS group(66 cases). The clinical characteristics and prognosis of the two groups of patients were compared, and the risk factors of PICS during hospitalization were analyzed.Results:PICS occurred in 43 of the 109 subjects(39.40%). The in-hospital mortality rate was significantly higher in the PICS group than in the non-PICS group(39.53% vs.7.58%, χ2=16.508, P<0.001). Multivariate logistic regression analysis showed that age>60 years( P=0.039), pulmonary infection( P=0.042), clinical stage Ⅳ( P=0.006), small cell lung cancer( P=0.017), albumin<30 g/L( P=0.001)were independent risk factors for PICS in lung cancer patients.A subgroup analysis of patients receiving chemotherapy showed that chemotherapy cycle>4( P=0.034)was risk factors for PICS in lung cancer patients. Conclusions:Patients with lung cancer complicated with PICS have a high in-hospital mortality rate.The risk factors for lung cancer complicated with PICS include old age, pulmonary infection, clinical stage Ⅳ, small cell lung cancer, albumin<30 g/L, and chemotherapy cycles>4.