Inverse Correlation of Incidence Between Headache and Mental Impairment After Traumatic Head Injuries

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概要

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• A statistical study was performed using Chi square test on 371 patients, each of those claimed compensation for the various sequelae of the work-related head injury. Head injury was classified as the following two groups: Severe head injury (duration of coma for 6 hours or more in the accident, and/or long-term existence of neurologic deficit) and mild head injury (alert or had brief unconsciousness for less than 6 hours and non existence of neurologic deficit). The author interviewed all patients with neurological examination and routine checking of X-rays and CT (sometimes EEC and MRI were added). Additional psychological tests or interview by a psychiatrist were ordered in case of need. Dementia, severe memory disturbance, or personality change were considered to be mental impairment. As a result, incidence of headache was high in mild head injury group and low in severe head injury one:167/223, and 76/148, respectively (P<0.001). Incidence of mental impairment was low in mild head injury group and high in severe head injury: 11/223 and 81/148, respectively (P<0.001). Incidence of mental impairment in headache group was 50/243 and that in non-HA group was 42/128 (P<O.O1). An inverse correlation was proved between incidence of headache and that of mental impairment. Moreover, the group of severe head injury was subdivided into diffuse axonal injury (DAI) and focal contusion. Incidence of headache in DAI was 37/56, and that in focal contusion was 21/51 (P<0.02). Incidence of mental impairment was low in DAI and high in focal contusion: 27/56 and 38/51, respectively (P<0.02). These results might be due to (1) the relation of posttraumatic complaint and compensation after the workrelated head injury, and (2) the poverty of the psychological energy in severely head-injured patients.

• 神戸大学の論文
• 1997-12-26

著者

• Yamaguchi Michio

  Faculty Of Health Science Kobe University School Of Medicine

• Yamada Taigou

  Faculty Of Health Science Kobe University School Of Medicine

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