Prediction Models for Complications After CRT in Esophageal Cancer

This study is building prediction models to identify which patients with esophageal cancer are most likely to develop complications after receiving chemoradiation followed by surgery, using data from past patient records. **You may be eligible if...** - You have a confirmed or suspected esophageal cancer diagnosis - You have a WHO performance status of 0–2 (able to carry out daily activities) - You are 18 or older - You have no distant spread of cancer (M0 stage) - You were treated with chemotherapy plus radiation and then had esophageal surgery between 2015 and 2021 at one of the participating centers **You may NOT be eligible if...** - Your cancer type is sarcoma, neuroendocrine, or small cell carcinoma of the esophagus - Relevant medical records are unavailable Talk to your doctor to see if this trial is right for you.