Traumatic Brain Injury Blog

head
July 22, 2019

Potential paradigm shift in the treatment of mild traumatic brain injury (concussion)-use of vision therapy to improve high level cognitive functions

In prior posts I have discussed the growing understanding in the scientific community that vision is often disrupted in subtle ways following a concussion (both the ability of the eyes to track and higher level visual processing). I noted that the introduction to a recent issue of the respected journal NeuroRehabilitation was devoted entirely to vision disturbance following TBI.

A new study just published in the journal Restorative Neurology and Neuroscience has produced evidence that a particular vision training exercise – movement figure-ground discrimination – may be very effective in improving high-level cognitive functions such as focusing and switching attention, working memory, processing speed and reading. “Dynamic cognitive remediation for Traumatic Brain Injury (TBI) significantly improves attention, working memory, processing speed, and reading speed.” Read More

June 6, 2019

AMA Journal concludes that “the term mild TBI misrepresents the immediate and long-term burden of TBI”

In 2003 CDC sent a report to Congress on “mild” traumatic brain injuries. (MTBI, also sometimes called “concussion.”) The report cautioned that, contrary to past understanding, “mild” brain injuries can cause serious, permanent problems:

“In recent decades, public health and health care communities have become increasingly aware that the consequences of mild traumatic brain injury (MTBI) may not, in fact, be mild. Epidemiologic research has identified MTBI as a public health problem of large magnitude, while clinical research has provided evidence that these injuries can cause serious, lasting problems.”

Read More

April 16, 2019

Dartmouth Study Recognizes LoveYourBrain Yoga as an Effective Tool for Community Based Rehabilitation For People with Traumatic Brain Injury

Funded by the Brain Injury Association of New Hampshire, a group of researchers at Dartmouth assessed the effectiveness of the program by conducting semi-structured interviews of 13 participants with traumatic brain injury and 3 caregivers who had completed the 6 week, 6 session program.  The results are published in the February, 2019 issue of Disability Rehabilitation.

Kevin Pearce, a Vermont resident and world leading professional snowboarder, suffered a near fatal traumatic brain injury while training for the 2010 winter Olympics. Kevin’s remarkable resilience since his injury has inspired millions through the award-winning HBO documentary, The Crash Reel. Read More

December 10, 2018

New Evidence Shows that One Season of High School Football Can Cause Microstructural Changes in the Brain

Researchers from Berkeley, Duke, UNC Chapel Hill and University of Arizona used a new type of MRI called “diffusion kurtosis imaging” (“DKI”) to take brain scans of 16 high school football players, ages 15 to 17, before and after a single season of football. DKI is an extension of Diffusion Tensor Imaging, (DTI) discussed in prior posts. Early studies suggest that it outperforms DTI in capturing certain microstructural changes in the brain. The football players who were scanned all wore helmets and none of them were diagnosed with a concussion. The researchers also measured head impact exposure during every practice and game using the Head Impact Telemetry (HIT) system, which has been widely used in other head impact studies. The study, which is the cover story of the November issue of the journal Neurobiology of Disease, is one of the first to look at how impact sports affect the brains of children at this age.

Read More

October 4, 2018

Use of Melatonin for Treatment of TBI and Sleep Disturbance Following TBI

There’s promising research on the use of melatonin for acute treatment of traumatic brain injury (TBI) and for treatment of sleep disturbance following TBI coming from two recent peer-reviewed papers. One, published in the Journal of Neurotrauma, reviews the literature and performs meta-analyses of the data in studies examining the use of melatonin shortly after injury.

The other, published in the journal BMC Med, reports on a randomized controlled trial examining the efficacy of melatonin in treating sleep disturbance following TBI.

Melatonin is an important hormone made by the pineal gland that helps control a person’s sleep and wake cycles. Read More

September 6, 2018

JAMA Publishes New Study Showing that TBI Increases the Risk of Suicide

A new study published in the Journal of the American Medical Association adds to a growing body of evidence pointing to traumatic brain injuries, of all levels of severity, as an important risk factor for suicide.

The significance of the study is discussed in an opinion in the same issue of JAMA.  Both the increased risk of suicide and the prevalence of depression following TBI have been discussed in prior posts in this blog. Read More

August 2, 2018

Pituitary Dysfunction Following TBI: Update on the Importance of Stimulation Testing

In our May, 2014 post, we reported on research showing that traumatic brain injury, including mild traumatic brain injury (mTBI), can damage and cause dysfunction in the pituitary gland resulting in deficiencies in key hormones released by the pituitary gland, such as Growth Hormone (GH). As we explained in that post, the anatomy of the pituitary gland makes it particularly susceptible to the sheering injuries seen in TBI. The pituitary gland, which is housed in a bony structure at the base of the skull, controls the function of most other endocrine glands and is therefore sometimes called the “master gland.” Read More

May 31, 2018

Cognitive Training Reduces Depression and Changes Brain Structure in Individuals with Chronic TBI Symptoms

Research scientists at the Center for Brain Health at the University of Texas at Dallas have just published a study, funded by the US Department of Defense, supporting the effectiveness of “strategy-based” cognitive training at reducing symptoms of depression commonly found in patients with chronic (greater than 6 months) traumatic brain injury (TBI) symptoms.

The training was an integrative program designed to improve cognitive control by exerting more efficient thinking strategies for selective attention and abstract reasoning. The training did not directly target psychiatric symptoms such as depression, but was nonetheless effective at reducing those symptoms. Read More

May 16, 2018

Large Study Finds Increased Risk of Dementia Diagnosis in Veterans with Mild Traumatic Brain Injury

In a propensity-matched cohort study of more than 350,000 veterans with and without traumatic brain injuries (TBI), mild traumatic brain injury (mTBI) without loss of consciousness was associated with more than a twofold increase in the risk of a dementia diagnosis, even after adjusting for medical and psychiatric co-morbidities. This large epidemiological study was recently published in JAMA Neurology.  Approximately 2.8 million TBIs occur each year in the United States; approximately 80% are in the “mild” category.

Although prior studies of the association between mTBI and dementia have been mixed, this study, among the largest epidemiological studies to date, adds to the weight of evidence suggesting that even mild TBI is associated with an increased dementia diagnosis risk. Read More

May 2, 2018

Differences in Axonal Structure Likely Contributing to Increased Vulnerability of Women to Concussions

Although males represent a majority of emergency department visits for sports and recreation-related concussion, researchers have recently found that female athletes have a higher rate of concussion and appear to have worse outcomes than their male counterparts participating in the same sport. University of Pennsylvania researchers have recently identified anatomical differences between male and female axons that may explain this increased vulnerability. Read More