“…25 However, recent studies have noted recurrence of IM and dysplasia in up to 33% of patients at 2 years underscoring the need for postablation surveillance. 26 Another recent analysis from the US RFA registry showed that the incidence rate of 27,28 A multicenter study from Europe looked at predictors of poor response to initial RFA treatment in patients treated for HGD. Four independent baseline predictors of poor response were observed: active reflux esophagitis (odds ratio [OR] 38; 95% CI, 3.2-4.33), endoscopic resection scar regeneration with Barrett's epithelium (OR, 4.7; 95 %CI, 1.1-20.0), esophageal narrowing pre-RFA (OR, 3.9; 95% CI, 1.0-15.1), and years of neoplasia pre-RFA (OR, 1.2; 95% CI, 1.0-1.4).…”