The effect of medical care by a helicopter trauma team on the probability of survival and the quality of life of hospitalised victims

In 1995, an experiment was started to give extra medical help by helicopter to patients who needed emergency treatment. The aim of the experiment was not to reduce the transportation time to the hospital, but to bring special ised medical care directly to patients as soon as possible. An evaluation s tudy was carried out to assess the effect of the treatment given by the Hel icopter Trauma Team (HTT) on survival and quality of life. The study focuse d on hospitalised patients suffering from polytrauma. A direct comparison b etween an experimental and control group was not possible, because the HTT group consisted of more severely injured patients. A refined severity index was constructed on the basis of the Revised Trauma Scale (RTS) and the Inj ury Severity Scale (ISS) and their sub-scores. Using this index, it was pos sible to make a clear distinction between three groups of patients, i.e. th ose with a high probability of survival (with or without special medical tr eatment), those with a very low probability of survival and the patients in between. It was shown that the HTT-treatment was effective. The survival r ate increased for patients in the 'in between' group, but not for patients with a low probability of survival. There was no difference in the quality of life of patients from the HTT and non-HTT groups 15 months after the acc ident. These findings refute the hypothesis that only the most severely inj ured patients with a low quality of life profit from HTT-treatment. (C) 200 0 Elsevier Science Ltd. All rights reserved.