About Burn: Definitions and Classifications

 

About Burn: Definitions and Classifications

 

Burn Definitions

 

Burn is a kind of injury which may be resulted from extreme heat, electric shock, friction, chemical exposure, light or radiation of all kinds. It is a wide variety injury but basically the end result is the burning sensation on the skin which lead to a certain degree of injury on the skin surface, blood vessel, muscle and in more severe cases up to the bone.

 

Burn victim may have to endure the burning sensation throughout the ordeal and while in the first part of the healing process. This is due to the highly concentrated sensory neurons located under our skin. When we first encounter burn for example from boiling water, the epidermal tissues are the first sensory receptor to send heat message to our brain.

 

As long as the burn does not destroy the receptor and the neurons, the victim will experience burning sensation. It will take some time of up to a few days to reduce the pain. The pain feeling will only absent when the epidermis starts to heal and form new skin.

 

A Burn victim may experience minor pain up to fatal complications. It all depends on:

  • the degree of the burn

  • location of the burn

  • percentage of the burn to the body

  • what caused the burn

  • how soon the burn is being treated

Burn Classifications

 

The old classification that describe the severity of the burn classes are by the Degree:

  1. First Degree Burns are usually non serious, non alarming burn. It doesn't require treatment at all. Example of first degree burns are sun burn or sun tanned.

  2. Second Degree Burns usually inflicted by hot boiling water which may result to blistering to the skin or epidermis. The victim of this kind needs to address severe pain due to the Nociceptor injury. Nociceptor is the sensory receptor below the epidermis or the skin. It sends pain signal to the brain and spinal cord.

  3. Third Degree Burns happen when the epidermis is gone completely. The pain is usually less severe than the Second Degree Burns. The damage appear in hypodermis which is directly below the epidermis. Arrector Pili Muscle( muscle attach to the follicle hair), Sebaceous Gland(microscopic gland that secrete oil to the skin) and Hair Follicle are usually at stake of damage when Third Degree Burns happen. Skin Grafting is usually perform to rectify the damage.

  4. Fourth Degree Burns constitute the damage right up to the bone. This is life threatening burn. Usually the damage include muscle, tendon, ligament tissue, nerve fiber, major artery and vein. In some cases, the hypodermis is completely destroyed which leads to a condition called compartment syndrome. The case will usually lead to permanent irreversible damage to the limb. If the Fourth Degree Burn covers the body extensively, it may be life threatening. Skin Grafting is necessary to restore the skin.

The new classification represents a more precise description to Burn terminology. It is divided into different kind of burn thickness:

  • Superficial Thickness: equivalent to First Degree Burns

  • Partial Thickness-Superficial: equivalent to Second Degree Burns

  • Partial Thickness-Deep: equivalent to Third Degree Burns

  • Full Thickness: equivalent to Fourth Degree Burns

  • Subdermal: complete destruction to the above 4 Thickness right up to the bone, tendon and muscle. There is not much can be done in this type of burn. Limb amputation and life threatening situation sets in.

TBSA (Total Body Surface Area) is the measurement used to determine the percentage of the burned affected area of the body. As a rule of thumb, our palm is approximately 1% of our body surface. Therefore the percentage of the victim's burnt body is measured by the number of palm's size.

 

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