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Diffuse axonal brain injury (DAI) is an injury to axons, a part of the nerve cells in the brain. As a result of the injury, brain cells may die, causing brain swelling, and increasing pressure within the skull. An increase in pressure may result in a decrease of blood supply to the brain.

This type of closed head injury can cause coma. Diffuse axonal injury typically causes loss of consciousness that lasts for more than 6 hours. Functions like movement, speech, and even those that support life are compromised.

This can be much more dangerous than an open head injury because of the tearing of the brain tissue and the potential for swelling. It occurs in about half of all cases of severe head trauma. It is called diffuse because this type of injury is widespread, affecting a larger area.

Joe Lyon is a highly-rated Ohio Brain Trauma attorney reviewing head and neck injury cases for plaintiffs nationwide.

Causes of Diffuse Axonal Injuries

DAI brain injury is caused by the movement of the brain within the skull.
This type of severe traumatic brain injury is most commonly sustained through motor vehicle accidents, following blows to an unsupported head.
Other causes can include:

 Auto Accidents
• Falls
• Sports related accidents
• Shaken Baby syndrome
• A bomb blast or Military injury

Diffuse Axonal Brain Injury Symptoms

If an individual is unconscious for more than 6 hours, they could have experienced a diffuse axonal injury. Some may appear conscious and will have symptoms associated with the injury depending on which areas of the brain have been affected.

DAI can occur in every degree of severity from mild or moderate to very severe. Concussion may be a milder type of diffuse axonal injury.
Computed tomography (CT) or magnetic resonance imaging (MRI) is usually done to detect diffuse axonal injury.

The outcome is frequently coma, with over 90 percent of patients with severe DAI never regaining consciousness. Those who do recover often suffer from lasting impairments of memory and cognition.


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Joseph Lyon has 17 years of experience representing individuals in complex litigation matters. He has represented individuals in every state against many of the largest companies in the world.

The Firm focuses on single-event civil cases and class actions involving corporate neglect & fraud, toxic exposure, product defects & recalls, medical malpractice, and invasion of privacy.


The Firm offers contingency fees, advancing all costs of the litigation, and accepting the full financial risk, allowing our clients full access to the legal system while reducing the financial stress while they focus on their healthcare and financial needs.

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A Voice for Those who have suffered

Why are these cases important?

Rightful compensation for plaintiffs can recover sizable settlements and can help pay for mounting medical expenses and other damages that may include long-term disability, rehabilitation, pain and suffering and lost wages. During some of the toughest times in a family’s life, The Lyon Firm can be of assistance.

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Many of my clients come to me in the hardest moments of their lives. They’ve suffered catastrophic injury, they’ve lost a family member, their business has suffered a catastrophic loss that they may not be able to overcome.

It’s a fear of the future and uncertainty that has driven them to come to a lawyer and to ask, ‘What available legal rights are there?’ in order to add some security for their future. The Lyon Firm takes the lead and guides clients through the process of filing catastrophic injury lawsuits.