pyloromyotomy /pīlôr′ōmī·ot″əmē/ [Gk, pyle + ouros + mys, muscle, temnein, to cut] , the incision of the longitudinal and circular muscle of the pylorus, which leaves the mucosa intact but separates the incised muscle fibers. It is the treatment of choice for hypertrophic pyloric stenosis, a congenital condition that obstructs the stomach. Also called Fredet-Ramstedt operation, Ramstedt-Fredet operation. See also pyloric stenosis.
