A retrospective analysis of eye disorders induced by chemotherapy including S-1 for gastrointestinal cancer.

20Background: Eye disorders (EDs) are common adverse events in patients received S-1 chemotherapy. Although there are some retrospective reports about EDs induced by S-1 mono therapy (mono) as adjuvant chemotherapy (Adj) in gastric cancer (GC), there are few reports about S-1 induced EDs in other gastrointestinal cancer (GIC). So we conducted this retrospective cohort study to investigate the incidence of S-1 induced EDs in GIC and the association with several clinicopathological factors, such as primary site, treatment setting, regimen, and duration. Methods: All the patients received S-1 chemotherapy for GIC in our institution from January 2008 to May 2016 were identified through medical records review extracted by our hospital data warehouse. We analyzed the incidence of S-1 induced EDs by reviewing all the medical records and the association between ED incidence and several clinicopathological factors using a chi-square test or a Fisher's exact test and logistic regression. Results: Two hundred eighty...