Pyloroplasty is a surgery performed to widen the opening at the lower part of the stomach, also known as the pylorus.

[1] 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.

[2] 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.

[3] After the surgery, the patient’s breathing, blood pressure, temperature, heart rate, fluid intake and output, respiration, and operative site will be monitored.

[1] Risks include those general to surgery, such as reactions to medications, bleeding, blood clots, or infection.

Risks specific to pyloroplasty include damage to the intestines, chronic diarrhea, mucosal perforations, leakage of the contents of the stomach, malnutrition, bile reflux, vomiting, and hernias.