pyloroplasty /pīlôr″əplas′tē/ [Gk, pyle + ouros + plassein, to mold] , a surgical procedure performed to relieve pyloric stenosis by widening the pyloric outlet. Before surgery any electrolyte imbalances or fluid deficiencies are corrected; sodium chloride and potassium chloride solutions may be given to correct ion losses from vomiting, which is characteristic of pyloric stenosis. With the patient under anesthesia the pyloric opening is dilated. Diarrhea is a common postoperative complication.
