What Is Lesioning?
Lesioning is the surgical removal of certain parts of the brain. A lesion is a small cut or break in tissue. Lesions are usually caused by trauma such as blows to the head, car accidents, falls from great heights, burns and other forms of physical injury. There are two types of lesions: primary and secondary. Primary lesions may not cause any symptoms at all while secondary ones can lead to permanent damage if left untreated.
The most common type of brain lesion is called a concussion. Concussions occur when one or both sides of the head get hit hard enough to knock someone out cold. They are often caused by football players getting tackled during games or even boxing matches. When a person suffers a concussion they lose consciousness immediately and their memory becomes hazy. After a few minutes, the person starts feeling woozy and eventually loses control over their body completely.
The person may not feel pain and will sometimes show no signs of having been hurt at all. If left untreated, a concussion can result in death due to brain swelling or bleeding into vital organs like the heart or lungs.
Secondary (Permanent) Lesions
Unlike a concussion, a permanent lesion causes tissue to die right from the very start. This type of brain damage is caused by anoxia. When you suffer oxygen loss for more than five minutes, permanent brain damage occurs. Anoxia can be caused by drug abuse, heart attacks, choking, strangulation and drowning. Other types of injuries may also cause anoxic brain failure.
If the brain loses more than fifty percent of its blood supply, permanent and irreversible brain damage will occur. This type of brain injury is less common, but far more serious than a concussion.
How Do I Treat This?
Most temporary lesions are treated at the scene of an accident by emergency responders. A person who suffers a concussion will often receive stitches, bandages and pain medication before being released from the hospital.
Sources & references used in this article:
Nucleus Lesioning by EMD Hoorneman, RM Buijs – Brain research, 1982 – pure.knaw.nl
Intradiscal lesioning apparatus by K Shah, FH Baylis, M Leung – US Patent 6,562,033, 2003 – Google Patents
Ultrasound brain lesioning system by FJ Fry, NT Sanghvi – US Patent 4,951,653, 1990 – Google Patents
Lesioning an attractor network: Investigations of acquired dyslexia. by GE Hinton, T Shallice – Psychological review, 1991 – psycnet.apa.org
Apparatus and method for RF lesioning by TP Ryan – US Patent 6,280,441, 2001 – Google Patents
Intradiscal lesioning device by MS Leung, K Shah, FH Baylis – US Patent 6,896,675, 2005 – Google Patents
Neuronal lesioning with axonally transported toxins by RG Wiley, RH Kline Iv – Journal of neuroscience methods, 2000 – Elsevier