In the Japan Neurotrauma Data Bank, Project Study (PRJ) and One Week Study (OWS) were performed. This study was conducted to clarify the recent trends of head injury in the aged patients. The data in the PRJ 2009 and the OWS 2012 were compared with those in the PRJ 2004 and OWS 2005, respectively.
The aged was defined as 65 years of age or older. The number of the aged patients was 253 in OWS 2005, and 319 in OWS 2012, 383 in PRJ 2004 and 479 in PRJ 2009. The following factors were analyzed: age, cause of injury, alcohol intake before injury, Glasgow Coma Scale (GCS) score, CT findings, incidence of multiple systemic injury (abbreviated injury score 3 or more), treatment and outcome at discharge.
Results: The recent treads of geriatric head injury were as below: 1) Age was relatively higher, 2) Fall or tumble was more common, 3) Alcohol intake was more frequent in the bicycle group of the PRJ 2009, 4) The proportion of combination of focal and diffuse injuries was increased in OWS 2012, and the rate of nonevacuated mass was decreased in PRJ 2009. Acute subdura hematoma was increased in percentage in both the OWS and the PRJ, 5) Treatment; Neurosurgical operation was unchanged in the OWS, but increased in the PRJ. In addition, the administration of hyperosmotic agent was less frequent in the PRJ 2009, 6) Outcomes at discharge were unchanged in the PRJ.
These results suggested that the outcomes of geriatric head injury had not been improved, even though the treatment had been more active and reasonable. The prevention of head injury is indispensable in the aged population.