Effects of bevacizumab combined with oxaliplatin intrathoracic injection on tumor markers and survival rate in patients with malignant pleural effusion of lung cancer

Objective: This study aims to explore the therapeutic effects of bevacizumab combined with oxaliplatin on patients with malignant pleural effusion of lung cancer. Methods: A total of 109 patients with malignant pleural effusion of lung cancer admitted to our hospital from March 2015 to April 2017 were selected as research objects. Among them, 59 patients treated with bevacizumab combined with oxaliplatin intrathoracic injection were enrolled in the observation group, and another 50 patients treated with oxaliplatin intrathoracic injection were enrolled in the regular group. Clinical efficacy and safety of the two groups were compared, as well as the expression of vascular endothelial growth factor (VEGF), vascular endothelial growth factor receptor (VEGFR) and tumor markers before and after treatment. The two groups of patients were followed up for 3 years to compare their prognosis, survival and quality of life. Results: The cure rate of the observation group was higher than that of the regular group (P < 0.05), but there was no difference in the incidence of adverse reactions (P > 0.05). After treatment, VEGF, VEGFR and tumor markers in the observation group were significantly lower than those in the regular group (P < 0.05), while the survival rate and quality of life of the observation group were significantly higher than those in the regular group (P < 0.05). Conclusion: Bevacizumab combined with oxaliplatin intrathoracic injection is effective in treating malignant pleural effusion of lung cancer.