Then , using hydrostatic dissection and electrocautery , the submucosal tunnel is made .
First , a submucosal injection of dyed saline creates a cushion , then a cut is made in the esophageal mucosa using electrocautery roughly 13 centimeters before the lower esophageal sphincter ( ) .
Using hydrostatic dissection and electrocautery , the submucosal tunnel is made .
First , a submucosal injection of dyed saline creates a cushion , then a cut is made in the esophageal mucosa using electrocautery roughly 13 centimeters before the lower esophageal sphincter ( ) .