Efficiency          The lack of qualified medical and technical assistance in pre-hospital in 1990 was the reason for the unjustifiable loss of lives of critical patients. Many of the patients having a real chance of survival lost that chance due to the inexistance of a special system designated to provide qualified emergency assistance. In 1990, a patient having a cardio-respiratory arrest at home or in the street had a chance of survival of approximatively 0%, and a person who was to be severely traumatized in a car crash or in another similar circumstance had a minimal chance of being assisted by a qualified person or to be transported to the hospital in an adequate medical vehicle. Even more, if the victim was immobilized inside the crashed car, the lack of emergency technical assistance and of the specific extrication equipment required kept the victim inside the wreckage for a long time, until an extraction method was improvized, or, in other cases, forced the extraction of the victim from the wreckage, causing complications leading to the victim's death or to the occurance of irreversible complications such as paraplaegia (permanently paralized legs).          With the guidance of the anaesthesiology and Intensive Care Clinic, in September 1990, an emergency system functional in other European countries was experimented. This system was based on the transfer of a full-equipped medical unit at the site where the critical patient was, in order to provide qualified emergency medical assistance. The unit is coordinated by a physician specialized in anaesthesiology, intensive care and emergency medicine.