RT Journal Article SR Electronic T1 Tumor Response in Esophageal Squamous Cell Carcinoma Treated With Neoadjuvant Chemotherapy Followed by Surgery JF Anticancer Research JO Anticancer Res FD International Institute of Anticancer Research SP 1153 OP 1160 DO 10.21873/anticanres.14057 VO 40 IS 2 A1 MANATO OHSAWA A1 YOICHI HAMAI A1 MANABU EMI A1 FURUKAWA TAKAOKI A1 YUTA IBUKI A1 KUROKAWA TOMOAKI A1 TORU YOSHIKAWA A1 MORIHITO OKADA YR 2020 UL http://ar.iiarjournals.org/content/40/2/1153.abstract AB Background/Aim: Neoadjuvant therapy followed by surgery is the standard treatment for advanced esophageal cancer. This study aimed to evaluated the potential of 18F-fluorodeoxyglucose positron-emission tomography to predict the pathological therapeutic effect of neoadjuvant chemotherapy. Patients and Methods: We enrolled 68 patients with advanced esophageal squamous cell carcinoma who underwent 18F-fluorodeoxyglucose positron-emission tomography before and after neoadjuvant chemotherapy, followed by surgery. Retrospective analysis of the pathological therapeutic effects was performed. Results: The pathological therapeutic effect of good responders was significantly inversely associated with the maximum standardized uptake value (SUVmax) after neoadjuvant chemotherapy and with SUVmax reduction (both p<0.0001). Univariate and multivariate analyses revealed that lower post therapy SUVmax and reduction in SUVmax were independent prognostic factors for relapse-free (p=0.02) and overall survival (p<0.0001). Conclusion: Post-neoadjuvant chemotherapy SUVmax and SUVmax reduction can predict the pathological therapeutic effect of neoadjuvant chemotherapy.