The Halo procedure uses heat energy (radiofrequency ablation) combined with EGD (esophagogastroduodenoscopy). The heat from electrodes at the end of the endoscope used in the procedure destroys abnormal tissue in the esophagus. However, the heat is precise to the abnormal area and doesn’t damage healthy tissue.
This procedure is recommended to treat Barrett’s esophagus by destroying the abnormal precancerous tissue in the esophagus and allowing the treated areas to heal normally.