[Four decades since the beginning of Experimental Gastroenterological Surgery at the Peruvian University]

The historic evolution of Peruvian Surgery up to the application of experimentation is described, guiding it on a scientific path. It is evident that the beginning of Experimental Surgery and Laboratories were established, four decades ago, in Peruvian Universities; this enabled other surgical center to introduce new surgical procedures to medical practice. The first experiments in gastrointestinal surgery performed by a surgical school of the UNMSM and in the UPCH as well as their clinical applications in two Teaching Hospitals (Loayza and Cayetano Heredia) are reviewed.