The lowest temperature that causes burns is 44°C. It is very comfortable at first. After a long time, the heat energy will be transmitted to the deep, causing damage.
Department of Burn and Plastic Surgery, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine Pei Jinging □Deputy Chief Physician Wang Zhiyong
The Burns Division seems to be very far away from us, but in recent days, the Burning Section of Shanghai Ruijin Hospital has been super hot, and the queuing time has risen to 2 hours, up to a maximum of three to four hours. The culprits are all kinds of 'warm artifacts'. Such as warm baby, hot water bottle, etc. Every winter and spring is the peak of low-temperature scald. In the past, it only accounted for 20% of all patients. This year it has risen to 30% or even half.
Low-temperature scald refers to contact with medium-temperature heat source for a long time, causing skin damage. The temperature of the hot-water bottle causing scald is 40°C~65°C. People often feel comfortable at such temperatures, and for a long time, heat energy is transmitted from the surface to the deep tissues. Injury. It was too late to feel pain, deep dermis, deep subcutaneous tissue damage. Studies have shown that the lowest temperature for human skin burns is 44 °C.
After prolonged use of heating equipment, it is found that the skin is red, swollen, peeled or blisters, which means that a low-temperature scald has occurred. Its area is usually small, round or oval, located in the heel, the sole of the foot, the front of the calf, and the buttocks. Etc. Injury usually reaches deeper or even full-thickness skin dermal necrosis, ie deep 2 or 3 degree scald. Before ankle, heel and other parts of the subcutaneous tissue are thin, when the weight can be deep enough to bone, wounds prolonged unhealed.
After a low-temperature scald, rinse the wound with cold water or use a towel wrapped in ice to cool it. Cold treatment can quickly cool the wound, prevent heat from continuing to damage tissue, reduce wound exudation and edema, and reduce pain. The sooner cold therapy is used, Yes, for more than 20 minutes, until the wound does not feel pain or if the pain is significantly reduced. If blisters or epidermis break down locally, you need to go to burn specialist for further treatment. During the treatment, you can use a clean sheet or towel to wrap the wound. Note: 1. Do not apply Colored drugs, such as mercurochrome, gentian violet, etc., so as not to affect the judgment of the depth of the wound; 2. Use ointment with caution to avoid debridement difficulties, but also not conducive to heat dissipation; do not use soy sauce and other earth, so as to avoid infection.
Low-temperature scalding has a long treatment time, sometimes it can not heal in 2 to 3 months. Some patients even need surgery, and often leave different degrees of scars after healing. Currently there is no specific drug for scar hyperplasia, so prevention is very important. 1. Use of heating equipment , should understand its temperature range, and take certain protective measures. 2. The majority of young and middle-aged low-temperature scald patients due to intoxication or exhaustion due to excessive use of heating equipment due to sleep, should be vigilant. cold hands and feet of women in order to warmer, warm baby Directly on the skin, causing deep burns. 3. Infants and young children, older people, life can not take care of themselves, people with sensory dysfunction should be extra vigilant, to avoid prolonged contact with the skin heating equipment or in a certain place. 4. Skin and heat source Should be taken between the isolation means such as thick towels. 5. With diabetes, local blood circulation to avoid the use of skin contact heating items. ▲
