I have Barrett’s with high dysplasia, diagnosed in August 2024 via endoscopy. I since have had two endoscopies with ablation, a third next week. It looks like I will be on a three month program for the foreseeable future. Your level of dysplasia should determine how often you are monitored/treated. Once a year seems like the standard for low dysplasia. Three month treatments/monitoring for high dysplasia.