<unk>  is a surgery performed to widen the opening at the lower part of the stomach, also known as the pylorus. When the pylorus thickens, it becomes difficult for food to pass through. The surgery is performed to widen the band of muscle known as the pyloric sphincter, a ring of smooth, muscular fibers that surrounds the pylorus and helps to regulate digestion and prevent reflux. The widening of the pyloric sphincter enables the contents of the stomach to pass into the first part of the small intestine known as the duodenum.
Pyloroplasty
Nissen fundoplication
Laparoscopic hiatal hernia repair
Pyloromyotomy
Transoral incisionless fundoplication
Frenuloplasty of tongue
Ileal interposition
Finney strictureplasty