A trial was conducted (among 22 patients) to assess a new use of patient-controlled devices. Using a patient-controlled analgesia (PCA) pump under the anaesthetist's guidance, the patients self-administered a neurolept mixture consisting of droperidol and alfentanil. The patients were then able to undergo minor surgery (dilatation and curettage). The majority remained detached, sedated and pain-free, while able to control the PCA pump during the procedure. Patient-controlled neuroleptanalgesia or PCNA, as we propose to call this technique, appeared practical, effective and safe. The method was generally well accepted and highly rated by the patients.