Electrical Injuries in Emergency Medicine Treatment & Management

  • Author: Tracy A Cushing, MD, MPH, FACEP, FAWM; Chief Editor: Rick Kulkarni, MD   more...
 
Updated: Apr 12, 2010
 

Prehospital Care

First, rescuers should practice awareness of scene safety and be sure there is no imminent threat to bystanders or responders in attempting to remove the victim from the electrical source. For high-voltage incidents, the source voltage should ideally be turned off before rescue workers enter the scene.

After ensuring scene safety, rescuers should approach victims of electrical injuries as both trauma and cardiac patients. Patients may need basic or advanced cardiac life support. They should be C-spine immobilized prior to movement, and spine immobilization as indicated by the mechanism of injury.

Given that injuries may be limited to a ventricular arrhythmia or respiratory muscle paralysis, aggressive and prolonged CPR should be initiated in the field for all electrical injury victims, as they are likely to be younger with fewer comorbid conditions and have better chances of survival after prolonged CPR.

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Emergency Department Care

Stabilize patients and provide airway and circulatory support as indicated by ACLS/ATLS protocols. Obtain airway protection and provide oxygen for any patient with severe hypoxia, facial/oral burns, loss of consciousness/inability to protect airway, or respiratory distress. Full cervical spine immobilization +/- spinal immobilization as needed based on mechanism of injury. Primary survey should assess for traumatic injuries such as pneumothorax, peritonitis, or pelvic fractures.

After primary assessment, begin fluid resuscitation and titrate to urine output of 0.5-1 mL/kg/h in any patient with significant burns or myoglobinuria. Consider furosemide or mannitol for further diuresis of myoglobin. Urine alkalinization increases the rate of myoglobin clearance and can be achieved using sodium bicarbonate titrated to a serum pH of 7.5. Obtain adequate intravenous access for fluid resuscitation, whether peripheral or central. Initiate cardiac monitoring for all patients with anything more than trivial low-voltage exposures.

Burn care should include tetanus immunization as indicated, wound care, measurement of compartment pressures as indicated, and it may include early fasciotomy. Extremities with severe burns should be splinted in a functional position after careful documentation of full neurovascular examination.

The risks of electrical injury to the fetus in a pregnant patient are unknown. Pregnant women who are involved in electrical injuries should have a careful examination for traumatic injuries and obstetrical consultation. Women in the second half of pregnancy should be admitted for fetal monitoring in any cases of severe electrical injuries, high-voltage exposures, or minor electrical injuries with significant trauma.

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Consultations

Patients with high-voltage electrical injuries require the ongoing care of a burn specialist, which should be instituted as early as possible, as aggressive early intervention via fasciotomy can prevent subsequent limb amputation.

Consider additional consultations with trauma/critical care, orthopedics, plastic surgery, and general surgery, depending on the type and severity of traumatic injuries.

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Contributor Information and Disclosures
Author

Tracy A Cushing, MD, MPH, FACEP, FAWM  Assistant Professor, Department of Emergency Medicine, University of Colorado School of Medicine; Attending Physician, Denver Health Medical Center

Tracy A Cushing, MD, MPH, FACEP, FAWM is a member of the following medical societies: American College of Emergency Physicians, Society for Academic Emergency Medicine, and Wilderness Medical Society

Disclosure: Nothing to disclose.

Coauthor(s)

Ronald K Wright, MD, JD  Associate Professor (Retired), Department of Pathology, University of Miami School of Medicine; Private Practice, Forensic Pathology

Ronald K Wright, MD, JD is a member of the following medical societies: American Academy of Forensic Sciences, American Medical Association, American Society for Clinical Pathology, College of American Pathologists, and National Association of Medical Examiners

Disclosure: Nothing to disclose.

Specialty Editor Board

Jerry Balentine, DO  Professor of Emergency Medicine, New York College of Osteopathic Medicine; Executive Vice President, Chief Medical Officer, Attending Physician in Department of Emergency Medicine, St Barnabas Hospital

Jerry Balentine, DO is a member of the following medical societies: American College of Emergency Physicians, American College of Osteopathic Emergency Physicians, American College of Physician Executives, American Osteopathic Association, and New York Academy of Medicine

Disclosure: Nothing to disclose.

Francisco Talavera, PharmD, PhD  Adjunct Assistant Professor, University of Nebraska Medical Center College of Pharmacy; Editor-in-Chief, Medscape Drug Reference

Disclosure: Medscape Salary Employment

Eric L Legome, MD  Chief, Department of Emergency Medicine, Kings County Hospital Center; Associate Professor, Department of Emergency Medicine, New York Medical College

Eric L Legome, MD is a member of the following medical societies: Alpha Omega Alpha, American Academy of Emergency Medicine, American College of Emergency Physicians, Council of Emergency Medicine Residency Directors, and Society for Academic Emergency Medicine

Disclosure: Nothing to disclose.

John D Halamka, MD, MS  Associate Professor of Medicine, Harvard Medical School, Beth Israel Deaconess Medical Center; Chief Information Officer, CareGroup Healthcare System and Harvard Medical School; Attending Physician, Division of Emergency Medicine, Beth Israel Deaconess Medical Center

John D Halamka, MD, MS is a member of the following medical societies: American College of Emergency Physicians, American Medical Informatics Association, Phi Beta Kappa, and Society for Academic Emergency Medicine

Disclosure: Nothing to disclose.

Chief Editor

Rick Kulkarni, MD  Attending Physician, Department of Emergency Medicine, Cambridge Health Alliance, Division of Emergency Medicine, Harvard Medical School

Rick Kulkarni, MD is a member of the following medical societies: Alpha Omega Alpha, American Academy of Emergency Medicine, American College of Emergency Physicians, American Medical Association, American Medical Informatics Association, Phi Beta Kappa, and Society for Academic Emergency Medicine

Disclosure: WebMD Salary Employment

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Arcing electrical burns through the shoe around the rubber sole. High-voltage (7600 V) alternating current nominal. Note cratering.
Contact electrical burn. This was the ground of a 120-V alternating current nominal circuit. Note vesicle with surrounding erythema. Note thermal and contact electrical burns cannot be distinguished easily.
Contact electrical burns, 120-V alternating current nominal. The right knee was the energized side, and the left was ground. These are contact burns and are difficult to distinguish from thermal burns. Note entrance and exit are not viable concepts in alternating current.
Electrical burns to the hand.
Electrical burns to the foot.
High-voltage electrical burns to the chest.
Superficial electrical burns to the knees (flash/ferning).
Energized site of low-voltage electrical burn in a 50-year-old electrician.
Grounded sites of high-voltage injury on the chest of a 16-year-old boy who climbed up an electric pole.
Energized site of the high-voltage injury depicted in Media File 9 (16-year-old boy who climbed up an electric pole).
Entrance site of a low-voltage injury.
Grounded sites of a low-voltage injury in a 33-year-old male suicide patient.
Grounded site of a low-voltage injury in the same 33-year-old male patient depicted in Media File 12.
Grounded sites of low-voltage injury on the feet.
A histologic picture of an electrical burn showing elongated pyknotic keratinocyte nuclei with vertical streaming and homogenization of the dermal collagen (40X). Courtesy of Elizabeth Satter, MD.
Table 1. Physiologic Effects of Different Electrical Currents
Effect Current (milliamps)
Tingling sensation/perception1-4
Let-go current – Children3-4
Let-go current - Women6-8
Let-go current – Men7-9
Skeletal muscle tetany16-20
Respiratory muscle paralysis20-50
Ventricular fibrillation50-120
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