Journal of Jilin University Medicine Edition ›› 2016, Vol. 42 ›› Issue (02): 345-350.doi: 10.13481/j.1671-587x.20160229

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Tumor volume recession pattern of patients with non-small cell lung cancer before and after EGFR-TKI targeting treatment and its clinical value

ZOU Xi, CHEN Jinmei, HONG Jinsheng, GUO Feibao, LAN Linzhen, ZHANG Weijian   

  1. Department of Radiotherapy, First Affiliated Hospital, Fujian Medical University, Key Laboratory of Radiation Biology, Fujian Province Key Laboratory of Tumor Individualized Active Immunotherapy, Fuzhou 350005, China
  • Received:2015-07-15 Published:2016-03-31

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 14822.11(7524.73, 54999.41)and 7954.42(3499.73, 29396.83), 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(4394.36, 24 430.05)and 7028.76(3634.98, 21056.71), 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, P<0.001);the relative tumor volumes of 1 month and 2 months after targeting treatment were 0.6084(0.3643, 1.0443) and 0.423 0(0.248 8, 0.877 7), respectively, and there also was statistically significant differernce(Z=-2.173, P=0.030);but the differences between other consecutive months(from 3 months to 6 months) had no statistically significant differences(P>0.05);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.

Key words: carcinoma,non-small-cell lung, tumor volume, epidermal growth factor receptor tyrosine kinase inhibitors, radiotherapy

CLC Number: 

  • R734.2