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Coup-Contrecoup By: Constance Jones

What is Coup-Contrecoup/ Traumatic Brain Injury ?:

What is Coup-Contrecoup/ Traumatic Brain Injury ? A Coup Contrecoup is a brain injury that occurs both at the site of trauma, and the opposite side of the brain. Pronunciation: Coo Con – truh coo

Two Major Types of Injury: :

Two Major Types of Injury: A “Coup” injury is the initial site of impact. For example, if you were in a car accident and struck your head on the steering wheel, you might have a “Coup” brain injury near the location of the forehead . A C ontrecoup injury happens at the opposite side as the site of injury, so if you struck your forehead, the brain injury would be at the back of your brain.

The Leading Causes of Coup-Contrecoup:

The Leading Causes of Coup-Contrecoup

Brain Functions :

Brain Functions The initial impact on the forehead causes the first injury, but the movement of the brain within the skull causes the second impact, against the back of the skull. Together, these injuries are called a Coup-Contrecoup injury, indicating that both injuries are present. Also called a closed head injury.

Injury Mechanisms:

Injury Mechanisms There does not have to be an impact to cause either the Coup or Contrecoup injuries. Shaken babies, for example, can have these injuries even if the head is never struck by another object. The movement of the brain within the skull is enough to cause the injuries.

Who is at Risk?:

Who is at Risk? The two age groups at highest risk are 0 to 4 years old and 15 to 19 years old. Certain military duties increase the risk of sustaining a brain injury such as a blast in war zones.

Damage Types:

Damage Types Contrecoup, which may occur in shaken baby syndrome and vehicle accidents, can cause diffuse axonal injury, which is an absence of oxygen supply to the organs tissue. On very rare occasions, Contrecoup injury can cause epidural hematoma, which involves bleeding into the area between the skull and the D ura. Contrecoup contusions are particularly common in the lower part of the frontal lobes and the front part of the temporal lobes.

Signs and Symptoms :

Signs and Symptoms Headache Vomiting and nausea Lack of motor coordination Dizziness Balancing Blurred Vision Ringing in the ears Bad taste in the mouth Forgetful Unequal pupil size


Treatment People with moderate to severe injuries are likely to receive treatment in a ICU. Primary aim is to stabilize the patient and focus on preventing further injury. Rehabilitation is the main treatment.


Studies A 1978 study found that the C ontrecoup mechanism was responsible for most of the brain lesions such as contusions and hematomas occurring in the temporal lobes of injured individuals. Injuries that occur in body parts other than the brain, such as the lens of the eye, the lung, and the skull and other bones, may also be labeled “Contrecoup.”

Prevention :

Prevention Use of seat belts Child safety seats Motorcycle helmets Presence of roll bars Airbags Education programs Changes to public policy and safety laws

Many Diagnostic Testing :

Many Diagnostic Testing CT MRI Angiography Trans Cranial Doppler Ultrasonography EE G Jugular bulb catheter

Conclusion :

Conclusion As technology improves, more people who suffer brain injury can survive. And even the less life threatening forms of brain injuries can result in significant problems that may persist, or even arise down the road from injury.

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