Observation on the Efficacy of Radiofrequency Ablation for Patients With Moderate to Severe Gastric Atrophy With Enterosis With or Without Atrophy of Intraepithelial Neoplasia: An Observational Study

Endoscopic radiofrequency ablation (RFA) consists of delivering a 465 KHz energy waveform to the diseased tissue through an array of bipolar electrodes. The electrodes are mounted externally to the balloon, on an articulating platform attached to the distal end of the endoscope, or on a flexible catheter that penetrates the scope. The principle of radiofrequency ablation is that the action of high-frequency alternating current (HFAC) induces the movement of charged particles within the tissue to generate heat, which results in evaporation of water inside and outside the cell, drying, and solidifying and shedding to the point of aseptic necrosis.RFA has been demonstrated to safely, effectively, and durably eradicate early stage tumors of Barrett's esophagus as well as gastric low-grade endoepithelial neoplasia, and is said by a consensus of experts to be capable of treating moderately severe atrophic enterocolitis that has not yet progressed to gastric low-grade intraepithelial neoplasi