Abstract:
Objective To investigate and analyze the clinical efficacy of computed tomography (CT)-guided microwave ablation (MWA) combined with iodine-125 (125I) seed implantation in treating lung malignant tumors.
Methods Records of forty-four patients, who were followed up for advanced or metastatic lung cancer treated with MWA or MWA combined with 125I seed implantation from January 2015 to December 2020 in Guangdong Provincial People's Hospital, were retrospectively reviewed, 28 patients were treated with MWA(MWA group)and 16 patients were treated with MWA combined with 125I seed implantation(combined group). The short-term clinic effectiveness, complications, Karnofsky performance status (KPS) score, and factors associated with survival were compared between the two groups of patients.
Results The effective rate was 21.43% in the MWA group and 56.25% in the combined group, P < 0.05;The complication rate was 46.43% in the MWA group and 62.50% in the combined group, P>0.05;one month after treatment, the KPS score was lower than that before treatment in both groups(P < 0.05). Three months after treatment, the KPS score in the combined group was higher than that before treatment in this group, and much higher than the MWA group scores in the same period(P < 0.05). The factors associated with survival were subjected to Cox regression, in which the protective factors were treatment modalityhazard ratio(HR)=0.400, 95% confidence interval (CI)0.849~0.957, P=0.048and preoperative KPS(HR=0.902, 95%CI 0.850~0.957, P=0.001).
Conclusions CT-guided MWA combined with 125I seed implantation is safe and effective in the treatment of advanced and metastatic lung cancer, and the recent clinical effect is satisfactory.