Tumor volume recession pattern of patients with non-small cell lung cancer before and after EGFR-TKI targeting treatment and its clinical value / 吉林大学学报(医学版)

ABSTRACT

Objective:To explore the regular variation pattern of tumor volumes of the patients with non-small cell lung cancer (NSCLC) before and after targeting treatment of epidermal growth factor receptor tyrosine kinase inhibitor (EGFR-TKI),and to clarify its clinical value.Methods:The materials of 39 NSCLC patients with EGFR-TKI targeting treatment were retrospectively analyzed. The tumor volumes were detected by volume measurement software of TPS and Image J image processing software,then the absolute and relative tumor volume changes of the NSCLC patients before and after targeting treatment were analyzed by paired sample comparison symbol Wilcoxon rank test. Results:The absolute tumor volumes (mm3 )of the patients with NSCLC before and 1 month after targeting treatment were 14 822.11 (7 524.73,54 999.41)and 7 954.42 (3 499.73,29 396.83),respectively, and there was statistically significant difference (Z=-3.257,P=0.001);the absolute tumor volumes of the patients with NSCLC 1 and 2 months after targeting treatment were 8 358.47 (4 394.36,24 430.05)and 7 028.76 (3 634.98,21 056.71),respectively,and there also was statisticaliy significant difference (Z=-2.213,P=0.027).When the original tumor volume before targeting treatment was regarded as 1,the relative tumor volume of 1 month after targeting theatment was 0.612 6 (0.313 8,0.853 7),and there was significant difference (Z=-3.855,P0.05);the changes of tumor relative volume presented platform stage after 3 months.The tumor relative volumes of 7-9 months after EGFR-TKI treatment reached the bottom.Conclusion:The average primary tumor volume of the NSCLC patients is obviously reduced 1 and 2 months after TKI targeting treatment. It may be optimal to carry out radiotherapy in 3-9 months after EGFR-TKI targeting treatment.