• The Journal of the Korea Contents Association
• /
• v.9 no.1
• /
• pp.348-358
• /
• 2009

Diffuse axonal injury(DAI) is a common form of traumatic brain injury and thought to be a major contributor to cognitive dysfunction. Physical activity has been shown to beneficial effects on physical health and influences in hippocampus which is an important location for memory and learning. The purpose of this study was to investigate the effect of motor training on motor performance and axonal regeneration in hippocampus through the immunoreactivity of GAP-43 after diffuse axonal injury in the rats. The experimental groups were applied motor training(beam-walking, rotarod, and Morris water maze) but control groups were not. The time performing the motor tasks and GAP-43 immunohistochemistry were used for the result of axonal recovery. There were meaningful differences between experimental groups and control groups on motor performance and GAP-43 immunohistochemistry. The control groups showed increasing tendency with the lapse of time, but experimental groups showed higher. Therefore, Motor training after DAI improve motor outcomes which are associated with dynamically altered immunoreactivity of GAP-43 in axonal injury regions, particularly hippocampus, and that is related with axonal regeneration.

• The Journal of Internal Korean Medicine
• /
• v.40 no.5
• /
• pp.804-813
• /
• 2019

The purpose of this study was to evaluate the effect of Korean medicine in a patient with cognitive impairment, emotional disturbance, and sleep disturbance due to a diffuse axonal injury associated with a traumatic brain injury. The patient was treated with herbal medicine and acupuncture. The treatment effects were evaluated using the Korean version of the Mini-Mental State Examination (MMSE-K) and the Global Detraction Scale (GDS), and by observing clinical symptoms. Improvements in the total scores of MMSE-K and GDS were observed after the Korean medicine treatments; the MMSE-K score increased from 13 to 23 and the GDS score decreased from 5 to 4. The emotional and sleep disturbances were also reduced. These case report findings suggest that Korean medicine may be effective for treating symptoms of diffuse axonal injury in patients with traumatic brain injury.

• The Journal of Internal Korean Medicine
• /
• v.28 no.3
• /
• pp.645-654
• /
• 2007

The purpose of this study is to present a case of secondary dementia caused by diffuse axonal injury. We diagnosed this patient with diffuse axonal injury by using brain computerized tomography(CT) and magnetic resonance imaging(MRI), and also diagnosed secondary dementia based on DSM-IV. To evaluate prognosis of the patient, we used K-DRS(Korean-Dementia Rating Scale) and gave him a written test. As a result of treating this patient with oriental medicine, the K-DRS score increased and the overall clinical symptoms improved. In oriental medicine, case studies of diffuse axonal injury are yet insufficient, hence more clinical studies and researches will be needed.

• Journal of Trauma and Injury
• /
• v.25 no.4
• /
• pp.122-131
• /
• 2012

Purpose: Diffuse axonal injury (DAI) is clinically defined as a coma of over six hours in a head trauma victim without a focal mass lesion. The emergency physician usually resuscitates and stabilizes a comatose head trauma victim in the emergency Department. After assessment and treatment, the prognosis is very important to both the victim and the physician. The prognosis for DAI is based on Glasgow Coma Scale (GCS) and other imaging data. We investigated the prognostic value of computed tomography (CT) and gradient-echo magnetic resonance imaging (GRI) for head trauma victims with DAI. Methods: Fifty-three(53) head trauma victims of DAI were enrolled in this study from 2007 to 2012. During the study period of six years, data on trauma victims were collected retrospectively. We analyzed the differences in the Glasgow Outcome Scale (GOS) result between the CT and the GRI modalities. Results: We classified the study group by using GOS. Between the good outcome subgroup (GOS scores of 4 and 5) and the poor outcome subgroup (GOS score of 1-3), there were no statistical difference in sex, age, initial vital signs and initial GCS score. The good outcome subgroup had non-hemorrhage on CT(52%), which was correlated with good outcome and a shorter awakening time, while a larger number and a deeper location of hemorrhagic lesions on in GRI were correlated with poor outcome in DAI. Conclusion: We conclude that the existence of hemorrhagic lesions on CT, and the number and location of those lesions on GRI had good prognostic value for head trauma victims with DAI.

• Investigative Magnetic Resonance Imaging
• /
• v.18 no.4
• /
• pp.290-302
• /
• 2014

Purpose : Susceptibility-weighted magnetic resonance (MR) sequence is three-dimensional (3D), spoiled gradient-echo pulse sequences that provide a high sensitivity for the detection of blood degradation products, calcifications, and iron deposits. This pictorial review is aimed at illustrating and discussing its main clinical applications. Materials and Methods: SWI is based on high-resolution, 3D, fully velocity-compensated gradient-echo sequences using both magnitude and phase images. To enhance the visibility of the venous structures, the magnitude images are multiplied with a phase mask generated from the filtered phase data, which are displayed at best after post-processing of the 3D dataset with the minimal intensity projection algorithm. A total of 200 patients underwent MR examinations that included SWI on a 3 tesla MR imager were enrolled. Results: SWI is very useful in detecting multiple brain disorders. Among the 200 patients, 80 showed developmental venous anomaly, 22 showed cavernous malformation, 12 showed calcifications in various conditions, 21 showed cerebrovascular accident with susceptibility vessel sign or microbleeds, 52 showed brain tumors, 2 showed diffuse axonal injury, 3 showed arteriovenous malformation, 5 showed dural arteriovenous fistula, 1 showed moyamoya disease, and 2 showed Parkinson's disease. Conclusion: SWI is useful in detecting occult low flow vascular lesions, calcification and microbleed and characterising diverse brain disorders.