Abstract
BACKGROUND: Epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs) is one of the foundamental treatment for non-small cell lung cancer (NSCLC) with EGFR mutation, however some patients might develop locally progression in primary site. The aim of this study is to assess the clinical application of radiofrequency ablation after locally progression of NSCLC while receving EGFR-TKIs. METHODS: Twenty-eight eligible NSCLC patients were enrolled. Efficacy and Safety data of radiofrequency ablation followed by EGFR-TKIs or chemotherapy were collected. RESULTS: None of patients had died during peri-operation period. The average follow-up time was 17.25 months. Locally progression rate was 10.7% (3/28), and locally progression time was 16.6 months. The average progression-free survival was (24.55±5.36) (95%CI:14.04-35.05), and the average overall survival was (25.57±5.45)(95%CI:14.88-36.27). Patients were divided into EGFR-TKIs group and chemotherapy group after radiofrequency ablation. The average progression-free survival of the two groups were (27.82±7.58)(95%CI:12.97-42.68) and (17.88±3.76)(95%CI:10.52-25.25)(P>0.05) respectively. The average OS (overall survival) was (29.42±7.68)(95%CI:14.36-44.48) and (18.44±3.87)(95% CI:14.89-36.27)(P>0.05) in two groups. CONCLUSIONS: Radiofrequency ablation combined with EGFR-TKIs or chemotherapy could prolong progression-free survival and overall survival of EGFR mutant NSCLC patients who had developed locally progression in primary site during EGFR-TKIs treatment.