Pyloric stenosis First described by Hirschsprung in 1888 Ramstedt described an operative procedure to alleviate the condition in 1907 the procedure used to this day to treat pyloric stenosis Harald Hirschsprung(1830-1916)Pyloric Stenosis ◼ First described by Hirschsprung in 1888 ◼ Ramstedt described an operative procedure to alleviate the condition in 1907 – the procedure used to this day to treat pyloric stenosis Harald Hirschsprung (1830-1916)