Background: Acute radiation-induced esophagitis (ARIE) is one of the most debilitating complications in patients who receive thoracic radiotherapy, especially those with esophageal cancer (EC). There is little known about the impact of the characteristics of gut microbiota on the initiation and severity of ARIE.
Materials And Methods: Gut microbiota samples of EC patients undergoing radiotherapy ( = 7) or concurrent chemoradiotherapy ( = 42) were collected at the start, middle, and end of the radiotherapy regimen.