Synonym for pyloromyotomy ... <procedure> Longitudinal incision through the anterior wall of the pyloric canal to the level of the submucosa, to treat hypertrophic pyloric stenosis. ... Synonym: Fredet-Ramstedt operation, Ramstedt operation. ... Origin: pyloro-+ G. Mys, muscle, + tome, incision ... (05 Mar 2000) ... Found on http://www.encyclo.co.uk/local/20973