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Saturday, November 21, 2009

Degree of burns, Avoid burns in kitchen, temperature at which burn occurs, ice on burns?

1. Dear burn surgeon, I am always worried my naughty son will suffer burns since he is always around me in the kitchen. Also please tell me at what temperature does a burn really occur?
Vanessa A, ST Louis, MO
Dear Vanessa,







You have raised an important issue. In fact 90% of burns in children occur at home and the kitchen is the most common area where burns occur. The simplest and best way to prevent burns in the kitchen is to bar children from entering the kitchen. In my kitchen I had an extra door fitted, which came up to my son’s neck level so that my wife could see only my son’s face and he could not enter the kitchen. I had to increase the height of the door thrice!!! till he was mature enough to take care of himself. In case of infants or babies it is better to keep them in a movable baby bed with bars, along with some toys so that he can’t move out and keep the baby bed close to your kitchen so he does not miss you and you can always keep an eye on him. You could also increase the height of the cooking area and the shelves so that the child cannot reach any of these sites. Matchsticks and lighters should be kept in a safe area. Do not use table cloth in the kitchen as children will tend to pull on it and spill hot food, soups etc over themselves. In general, do not leave any hotstuff likely to cause burn unattended, when you have a child in the house. It is our responsibility to avoid burns in children.All electrical devices in the kitchen should be out of reach of children so as to avoid an electrical burn or shock. Electrical plug points should be child safe and wirings should not be exposed.

To discuss your second question,
The normal body temperature is 37 c or 98.4 f. Hence the body can withstand a few degrees more or less. However at temperatures of 40-44 c or 104 to 111.2 f the tissues suffer damage. The cellular proteins denature and even the cellular enzymes and pump mechanisms stop functioning. Over 44 c or 111.2 f it is difficult for the cells to repair this damage. So vanessa be careful when temperatures cross 40 c.


2. Dear burn surgeon, I read that immediate cooling of a burn helps, can I put ice on the burnt areas ?
Kimberly james, NY






Thank you Ms Kimberly for your question. Burns occur at high temperatures that begin to damage the skin and body tissues (See Q1). Logically if this temperature is immediately lowered, less damage should occur. Cold running water is the best way to do this. Hold the burn area under the cold running water till pain subsides for a few minutes (water conducts the heat away from the skin). For big severe burn areas one should be careful and avoid immersing in cold water as this can result in hypothermia (lowering of body temperature) and shock. Application of ice should be avoided for reasons of hypothermia as well as to prevent causing a cold burn (frostbite).



3. My friend’s daughter has a burn on the leg. The doctor says that it is a second degree deep burn and may need a special procedure called skin grafting.
Please explain this.
Lucio Paul M
S Africa

In what manner a burn wound will heal depends on how much damage the burn has caused the skin and body tissues. This is known as the depth of the burn and to understand this concept, one must know the layers of the skin.


In simple terms the skin has two layers
1) Epidermis – superficial or upper
2) Dermis- deep or lower

The fat, muscles, nerves, bone and organs lie below these 2 layers of the skin.

If only the epidermis is damaged it is called a 1st degree burn. This is akin to sunburn. There is redness (erythema) of the skin, pain and blanching (skin becomes pale on pressure).











When the epidermis and the upper part (superficial layer) of the dermis are damaged, it is called a 2nd degree superficial burn. This burn is painful (sensory nerves endings are not damaged), has blisters (fluid collects between epidermis and dermis) and burnt areas will still blanch when pressure is applied. The hair follicles and dermal glands are usually unaffected.







When the epidermis and most of the dermis is damaged, it is called a 2nd degree deep burn. This burn has less pain (sensory endings are affected) blood flow is affected and so the skin appears pale or white, may have small or no blisters (as deeper layers of dermis is burnt, less fluid can exude or pass out) and the hairs can be easily pulled out (as both hair follicles and glands of dermis are damaged).







When the epidermis and the whole of the dermis are completely damaged, it is called a 3rd degree burn. The burn area appears waxy white or brown or black depending on whether the burn has charred the skin. There is no pain as all the skin sensory elements are destroyed. Since all blood supply in the skin is destroyed the skin appears depressed (lower than the surrounding normal skin) and sometimes clotted blood vessels are seen in this burn area. When you touch the skin there is a leathery feel and all the hair are lost and dermal glands are totally damaged.


When the burn damages skin completely and extends into the underlying structure subcutaneous fat, muscles, tendons, blood vessels and bone joints it is called a 4th degree burn.


Why did I give you all these details?
Well, once you know the depth of the burn you can fairly predict the healing pattern and suggest the course of management though sometimes a superficial burn can become deep over course of time from many reasons.

The skin heals by regeneration of epithelial cells which are present in the hair follicles, sweat glands and sebaceous glands that are present in the dermal part of skin. Whether a burn wound will heal will depend on the depth of the burn and what percentage of hair follicles, sweat glands and sebaceous glands are destroyed.








Since only the epidermis is damaged in a 1st degree burn, the skin is easily regenerated and healing occurs without scar formation. 1st degree burn heals by simple ointment applications in about seven days.

2nd degree superficial burns do not damage the hair follicles and dermal glands but they take more time and tend to heal in 2-3 weeks.

2nd degree deep burns and 3rd degree burns will damage the hair follicles and dermal glands and therefore will not heal spontaneously. Instead of regeneration of skin they will end up as red raw area (granulation tissue) without skin. Hence one needs to remove skin from another part of the body and apply this on the burn areas after clearing the burn wound of all the dead tissues (debridement). This procedure is called skin grafting.

4th degree burns need more tissue than a thin skin graft and therefore a flap (tissue that includes skin, fat, muscle or bone) are required. I shall explain the skin grafts and flaps in detail later.

Uncommonly 2nd degree deep burns may heal between 3-4 weeks but they often end up with severe scaring and contractures (joints movement is restricted because of shortage of skin)
I hope this explanation will satisfy you.
BURNS

+Introduction + In the United States of America 45,000 burn victims are admitted to hospital each year for treatment. The incidence of burn is quite high in other countries as well. Burn patients suffer enormous physical and psychological trauma often due to the lack of information and appropriate timely treatment. The recent advances in burn care, the different modalities of treatment, the availability of large number of skin substitutes, myriads of burn ointments and other aspects of burns have confused many who keep running from physician to physician or visit innumerable sites on the web in the hope of finding an answer. Over the past 25 years I have heard the same questions being repeatedly posed to me on burns and this has initiated me into starting this blogsite: http://asktheburnsurgeon.blogspot.com/
where I will attempt to answer questions related to burns for free, as well as express my opinion and thoughts. Experts in burn care are also welcome to express their comments on any questions posted here and these comments will also be published on this blogsite which will aim to create burn awareness among the community as well as help the burn patients. The blog should be useful for burn patients, their relatives, caretakers, caregivers, nurses, paramedical staff medical students, doctors and all burn care professionals. You can email your comments, doubts or any questions related to burns to: asktheburnsurgeon@yahoo.com . Please be patient as there may be some delay in answering your questions.
Why free? Well a burn patient is not a cosmetic surgery patient who is completely healthy and is looking for ‘something extra’. I feel society has a responsibility to help these patients who suffer enormous pain and mental stress. Imagine causing them more pain with financial stress just to get the right information!


'If this site will end up being helpful to burn patients, their caretakers and burns care professionals, the purpose of this blog will be served'.



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