<unk>  refers to the removal of ingested objects from the esophagus, stomach and duodenum by<unk>  techniques.  It does not involve surgery, but rather encompasses a variety of techniques employed through the gastroscope for grasping<unk>  bodies, manipulating them, and removing them while protecting the esophagus and trachea.  It is of particular importance with children, people with mental illness, and prison inmates as these groups have a high rate of<unk> <unk>  ingestion.
Endoscopic foreign body retrieval
Natural orifice translumenal endoscopic surgery 
Esophageal stricture procedure
Nutcracker esophagus surgery
Nissen fundoplication
Achalasia surgery
Pancreatic fistula surgery
Esophageal stricture surgery