Active_comparator: Anti reflux endoscopic theraphy using Argon plasma coagulation in GERD

To the intervention arm, the area of cardia, along greater curvature will be cleaned first followed by demarcation of a 1-1.5 cm area of non-ablation zone with two vertical lines by use of Pulsed APC using the H-APC catheter for marking and to prevent excess ablation . After this, the area of cardia, on either side will be injected in sequence using a combination of methylene blue and normal saline using the H-APC catheter jet system using between Effect 30 and Effect 70 on the ErbeJet 2 to raise the mucosa and create a submucosal cushion . Once adequate submucosal cushion is created, the mucosa starting below the z-line and up to 3 cm below will be treated by Pulsed APC 50W-80W using the H-APC catheter till golden-brown discoloration of the ablated tissue20~The area of cardia below the Z-line will be treated in a 270-320-degree fashion. Once adequate ablation is achieved and no deeper tissue injury or bleeding is ensured, the procedure will be terminated.

Placebo_comparator: Endoscopy

Patients randomized to the control arm, will undergo a sham intervention. This will include performing upper endoscopy with procedural sedation followed by markings of landmarks as described. This will be followed by gastroscope retroflexion in the gastric cardia with at least 15 minute of examination time spent in retroflexion to reciprocate the H-APC intervention. No H-APC or submucosal injection or other intervention will be performed during the upper endoscopy with sham intervention. All Patients will also continue their PPI daily for 4 weeks.