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Caring for Electrical Burns
Electrical burns make up about 5-7 percent of admissions to burn units. Unlike the burning man, the individual with an electrical burn has a greater chance of having their burn underestimated because the burn usually doesn’t look as bad as it is in the deeper tissues of the body. Electrical burns are considered to be the most devastating of all burns on a size for size basis.
Electrical burns are generally burns involving young, working men. They are a major cause of amputations among burn unit patients. These types of burns account for about 6 percent of all workplace fatalities.
What makes up an electrical burn?
Burn size and severity depend on several factors in electrical burns. The severity of the burn depends on the voltage involved, the type of current (direct or alternating
current), the path of the current flow, the amperage involved and the resistance at the point of contact.
There is an arbitrary classification involving electrical burns. Low voltage burns are sustained at voltages less than 1000 V, while high voltage burns come from voltages greater than 1000 V.
Low voltage burn wounds tend to be localized around the site of contact, whereas high voltage burns are more like crush injuries with deep tissue involvement. Fortunately, most homes are wired at 120 volts so they are classified as low voltage burns.
In the US, 99 percent of all electrical burns occur indoors, which makes the vast majority of them of the low voltage type. Doctors used to try and identify the entrance wound and the exit wound of the body but now they are both designated as “contact points”. It can be difficult otherwise to detect which site was the entrance wound and which was the exit wound.
The contact points can be obvious, subtle, hidden or even pinpoint wounds.
Fatalities are often determined by the path the current took through the body. If the electrical injury affected the heart, these patients are often electrocuted immediately. Others that survive can have anywhere from zero to many contact points where the electricity entered or exited the body. When an alternating current affects the body, it causes all the muscle groups to go into spasm. These muscles can either throw the person away from the source of the electrical current or can draw them into it, causing more serious damage, depending on which muscle groups are strongest.
There is going to be resistance to the current on the part of the body. Ninety-nine percent of this resistance comes directly from the skin. The thicker and drier the skin, the greater is the amount of resistance it can apply.
There are three aspects to electrical burns:
Electricity affects the membranes of cells it comes in contact with. The membranes become porous and the cells eventually die. Cellular damage can be found even distant from the major contact point.
Care of the Electrically-injured Patient
The first problems to be tackled when a person with an electrical burn arrives at the emergency department include the following:
Patients who definitely need monitoring follow under these categories:
Often the urine begins to turn dark after an electrical injury. This indicates that muscle has been damaged and that myoglobin and denatured hemoglobin are circulating in the bloodstream. The management of this involves giving enough fluid to keep the urine output at 100 ml/hr. If the patient is given sodium bicarbonate to alkalinize the urine, it will maximize the clearance of these proteins from the system. Mannitol can be given to flush out the kidneys of these proteins.
Other Concerns
About fifteen percent of all burn victims due to electricity will have some other traumatic injury. Some will be caused by the tetanus-like muscle contractions that occur in electrical injuries. Swelling of areas of the body can occur, causing compartment syndrome or the loss of circulation to other vital areas of the body. Sometimes, the doctors need to cut lines in the burned tissue—to essentially split the skin open to make room for the swelling. Even so, amputations can still be necessary.
Treatment of Electrical Burns
Treatment of electrical burns starts with diagnosing the extent of the burn. A scan can be used using xenon-133 or technetium pyrophosphate to identify the damaged areas of the body. Superficial wounds at the contact points are treated much like other burns by excising the eschar and covering the wound with a biological dressing.
Problem areas in wound healing are the scalp, the upper trunk and the abdomen. Abdominal electrical burns can cause deep visceral injury requiring emergency surgery.
Lightning Burns
Lightning burns are considered the second greatest cause of weather-related deaths worldwide, accounting for about 80 deaths per year in the US alone. Lightning burns can cause minor skin burns or can result in deep burns similar to industrial electrical burns. Victims of lightning burns often suffer from respiratory or cardiac standstill, leading to the need for CPR. Many patients develop paralysis, unconsciousness, seizures and tingling of the body that can occur even days after the injury. These neurological impairments are fortunately rarely permanent. Some patients will develop post-traumatic stress disorder.
Complications of Electrical Burns
Electrical burns can cause cataracts of the eyes, kidney failure, heart complications, sepsis and neurological damage. Cataracts can form as far out as 11 months following the injury. Neurological changes can manifest themselves as far out as 2 years post-injury. Electrically burned patients have a higher risk of post-traumatic stress disorder and other neuropsychiatric disorders when compared to other types of burn injuries.
A serious burn is a catastrophe. Anyone who has a serious burn thru the negligence of another should contact an experienced catastrophic injury lawyer.
Electrical burns are generally burns involving young, working men. They are a major cause of amputations among burn unit patients. These types of burns account for about 6 percent of all workplace fatalities.
What makes up an electrical burn?
Burn size and severity depend on several factors in electrical burns. The severity of the burn depends on the voltage involved, the type of current (direct or alternating
current), the path of the current flow, the amperage involved and the resistance at the point of contact.
There is an arbitrary classification involving electrical burns. Low voltage burns are sustained at voltages less than 1000 V, while high voltage burns come from voltages greater than 1000 V.
Low voltage burn wounds tend to be localized around the site of contact, whereas high voltage burns are more like crush injuries with deep tissue involvement. Fortunately, most homes are wired at 120 volts so they are classified as low voltage burns.
In the US, 99 percent of all electrical burns occur indoors, which makes the vast majority of them of the low voltage type. Doctors used to try and identify the entrance wound and the exit wound of the body but now they are both designated as “contact points”. It can be difficult otherwise to detect which site was the entrance wound and which was the exit wound.
The contact points can be obvious, subtle, hidden or even pinpoint wounds.
Fatalities are often determined by the path the current took through the body. If the electrical injury affected the heart, these patients are often electrocuted immediately. Others that survive can have anywhere from zero to many contact points where the electricity entered or exited the body. When an alternating current affects the body, it causes all the muscle groups to go into spasm. These muscles can either throw the person away from the source of the electrical current or can draw them into it, causing more serious damage, depending on which muscle groups are strongest.
There is going to be resistance to the current on the part of the body. Ninety-nine percent of this resistance comes directly from the skin. The thicker and drier the skin, the greater is the amount of resistance it can apply.
There are three aspects to electrical burns:
- The true electrical injury caused by the current
- The arc injury from the electricity passing from its source to another object
- Flame burns from clothing catching on fire
Electricity affects the membranes of cells it comes in contact with. The membranes become porous and the cells eventually die. Cellular damage can be found even distant from the major contact point.
Care of the Electrically-injured Patient
The first problems to be tackled when a person with an electrical burn arrives at the emergency department include the following:
- Whether or not the patient needs to be monitored from a cardiac standpoint
- Whether or not the patient is at risk for compartment syndrome, which is due to swelling of tissues that cuts off the circulation to other body parts
- How much fluid will the patient ultimately need, which depends on how deep and extensive the burns are.
Patients who definitely need monitoring follow under these categories:
- Those that needed CPR at the scene
- Those that had a documented arrhythmia following the injury
- Those that have evidence of cardiac ischemia (a lack of blood flow to the heart)
- Those who have had unconsciousness following the injury
Often the urine begins to turn dark after an electrical injury. This indicates that muscle has been damaged and that myoglobin and denatured hemoglobin are circulating in the bloodstream. The management of this involves giving enough fluid to keep the urine output at 100 ml/hr. If the patient is given sodium bicarbonate to alkalinize the urine, it will maximize the clearance of these proteins from the system. Mannitol can be given to flush out the kidneys of these proteins.
Other Concerns
About fifteen percent of all burn victims due to electricity will have some other traumatic injury. Some will be caused by the tetanus-like muscle contractions that occur in electrical injuries. Swelling of areas of the body can occur, causing compartment syndrome or the loss of circulation to other vital areas of the body. Sometimes, the doctors need to cut lines in the burned tissue—to essentially split the skin open to make room for the swelling. Even so, amputations can still be necessary.
Treatment of Electrical Burns
Treatment of electrical burns starts with diagnosing the extent of the burn. A scan can be used using xenon-133 or technetium pyrophosphate to identify the damaged areas of the body. Superficial wounds at the contact points are treated much like other burns by excising the eschar and covering the wound with a biological dressing.
Problem areas in wound healing are the scalp, the upper trunk and the abdomen. Abdominal electrical burns can cause deep visceral injury requiring emergency surgery.
Lightning Burns
Lightning burns are considered the second greatest cause of weather-related deaths worldwide, accounting for about 80 deaths per year in the US alone. Lightning burns can cause minor skin burns or can result in deep burns similar to industrial electrical burns. Victims of lightning burns often suffer from respiratory or cardiac standstill, leading to the need for CPR. Many patients develop paralysis, unconsciousness, seizures and tingling of the body that can occur even days after the injury. These neurological impairments are fortunately rarely permanent. Some patients will develop post-traumatic stress disorder.
Complications of Electrical Burns
Electrical burns can cause cataracts of the eyes, kidney failure, heart complications, sepsis and neurological damage. Cataracts can form as far out as 11 months following the injury. Neurological changes can manifest themselves as far out as 2 years post-injury. Electrically burned patients have a higher risk of post-traumatic stress disorder and other neuropsychiatric disorders when compared to other types of burn injuries.
A serious burn is a catastrophe. Anyone who has a serious burn thru the negligence of another should contact an experienced catastrophic injury lawyer.
