2009 Volume 31 Issue 2 Pages 181-192
The purpose of this study was clarify the clinical features, a change of the therapy and the effect, connection with the outcome of acute subdural hematoma registered on the Japan Neurotrauma Data Bank (JNTDB) presented in 1998 and 2004. Among those, 421 cases in P1998 and 380 cases in P2004 aged more than 6 years who presented with Glasgow Coma Scale (GCS) 8 or less on admission and with ASDH on CT findings were retrospectively analyzed.
As for the age distribution, two peaks were seen in young aged 16 – 20 years and old aged 61 – 65 years. The ratio of the ASDH case in young cases (45 years) decreased compared with P1998. A ratio of traffic accidents decreased, and a ratio of the injury by the fall increased. Surgical treatment was performed to 63.2% (P2004), 65.1% (P1998), and was performed both projects most together by a 46 – 65 year-old case. Hematoma evacuation group increased to 21.1% from 14.5%, and a burr hole opening decreased to 17.1% (P2004) from 22.3% (P1998). The temperature management was performed to 41.2% (P2004), 20.5% (P1998), especially the younger cases (45 years) in P2004, the temperature management was performed to 56.2%.
The overall mortality is 67.7% (P1998), and 54.5% (P2004). The mortality of the temperature management cases was decreased, but the favorable outcome group does not increase. In younger cases (45 years), the favorable outcome group improved to 47.1% (P2004) from 33.3% (P1998) in the hypothermia group, and improved to 45.5% (P2004) from 30.0% (P1998) in the normothemia group. Temperature management after surgical treatment was more common, used to 57.5% (P2004) and 29.2% (P1998). The rate of favorable outcome group tends to increase in the hypothermia and normothermia group with craniotomy, but the mortality was not seen in the difference with the no temperature management group. For the case that used temperature management with a burr hole opening, the effect was not clear.
An outcome tends to be good for the case that used temperature management together with craniotomy and will require the accumulation of the further case in future.
