High-voltage electrical injury often causes damage to deep tissues of human body due to current passing through human body. The resistance of human tissues is different, which leads to different thermal energy damage. Generally speaking, the resistance of nerves, blood vessels, muscles, skin, tendons, fat and bones increases in turn. Electrical injury often has an entrance and an exit, the surrounding skin is charred and carbonized, and the deep tissue damage is more serious, resulting in nerve and muscle necrosis, vascular embolism and delayed necrosis of deep tissue. Therefore, the burns caused by high voltage electric injury are not limited to superficial skin injuries, but also often accompanied by deep muscle, nerve and blood vessel injuries, which requires careful exploration, debridement and expansion during operation.

Expert: Deputy Chief Physician Cheng, First 180 Hospital of PLA-Department of Burn and Plastic Surgery