The aim of this work is to introduce an alternative to ordinary anaesthetic with tracheal intubation for the surgery of pyloric stenosis. We argue in favour of this alternative that it can be achieved with relative ease if the technique of caudal epidural is well known, a better control of peri and post-operative analgesia without the need of opiates, and that this technique obviates orotracheal intubation and intermittent positive pressure ventilation. Based on our experience with 18 patients, we introduce the anaesthetic technique, the monitoring systems and the obtained results. Our conclusion is that this technique is a good alternative to general anaesthetic for the surgical treatment of pyloric stenosis.