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En el campo de la construcción, un dictamen de patología es un documento en el que un técnico experto en esta disciplina traslada su opinión técnica a un profano o a otro menos experto que él. Para que el destinatario confíe en la opinión del técnico, ha de apreciar coherencia interna y verosimilitud en el dictamen, entre otras cosas. Los conocimientos científicos y técnicos que se le presuponen al autor del dictamen no son suficientes, porque la mejor argumentación técnica puede no transmitir adecuadamente su contenido. Así, es posible y deseable utilizar criterios lógicos de argumentación complementarios a los puramente técnicos, para potenciar la transparencia y comprensibilidad del dictamen, para lo que presentamos un modelo de argumentación técnica desarrollado a partir de otros modelos de argumentación lógica, especialmente del expuesto por Stephen Toulmin en 1979, que se ha aplicado a diferentes campos, pero no, que sepamos, al de patología en edificación.

The perioperative management of patients undergoing abdominal surgery has been based on traditional concepts and often not supported by scientific evidence. Recently there have been several scientific studies showing that some traditional procedures for the perioperative management of patients as preoperative fasting, bowel preparation, use of naso-gastric tubes, placement of intra-abdominal drainage, postoperative fasting etc. They are unnecessary and sometimes counterproductive. Perioperative management protocols ERAS or Fast-Track (Enhanced Recovery After Surgery) are based on the use in the perioperative period of measures that are supported by current scientific evidence. Since 2000 appear in the scientific literature several works that reflect the application of protocols ERAS or Fast- Track in surgery of the digestive system where it's shown uniformly, not only the security of your application but also, decreased complications and hospital stay. Although initially these protocols were described in colorectal surgery, due to the good results obtained, the application of these protocols has rapidly expanded to other surgical specialties such as thoracic surgery, Urology, Gynaecology, etc. In all these specialties has unanimously showing improved postoperative recovery with ERAS application protocols. The purpose of this paper is twofold. On the one hand examine the scientific evidence that exists today on the most important elements of an ERAS program and present preliminary results of the implementation of a program ERAS in our hospital.