Barrett's Esophagus With Persistent Dysplasia or Clinical Trial
Official title:
CryoSpray Ablation for Barrett's Esophagus After Treatment Failure With Serial RadioFrequency Ablation
The purpose of this study is to determine whether cryotherapy is effective in the treatment of persistent high grade dysplasia (HGD) or early esophageal adenocarcinoma (IMCA) in patients who have not responded to radiofrequency ablation (RFA).
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