A lightning strike can have a devastating and wide-ranging impact on the human body, affecting multiple systems and leading to long-term health issues. While a strike is often thought of as an instant event, the electrical current, heat, and shockwave can cause a variety of injuries, from superficial burns to life-threatening cardiac arrest. Understanding these medical effects is critical for first responders and anyone who might be in a position to help a lightning strike survivor.
Immediate and Life-Threatening Effects
- Cardiac Arrest: This is the most common cause of death from a lightning strike. The powerful electrical current can instantly stop the heart’s rhythm, leading to cardiac arrest. Immediate CPR is crucial for survival.
- Respiratory Arrest: Lightning can also cause a shutdown of the brain’s respiratory center, which controls breathing. This is often an immediate effect of the strike, and it requires artificial respiration until the body can resume breathing on its own.
- Neurological Damage: The central nervous system is highly vulnerable to a lightning strike. Survivors often experience temporary paralysis, memory loss, seizures, or confusion. In some cases, severe long-term neurological damage can occur.
Internal and External Injuries
- Burns: While many people believe a lightning strike leaves a large burn, this is often not the case. The lightning’s current passes through the body so quickly that it can create a distinctive fern-like burn pattern called Lichtenberg figures on the skin. Deeper, more serious burns can occur where metal objects (such as jewelry or a belt buckle) conduct the current into the skin.
- Blunt Trauma: The explosive force of a lightning strike can throw a person, causing significant blunt trauma injuries like broken bones, internal bleeding, and ruptured eardrums.
- Eye and Ear Damage: The intense heat and light can cause cataracts or other eye damage. The sound of thunder, which is a shockwave created by the lightning, can rupture eardrums and cause temporary or permanent hearing loss.
Psychological and Long-Term Effects
The physical injuries from a lightning strike are often just the beginning. Survivors may also suffer from a range of long-term and psychological issues. These can include chronic pain, headaches, dizziness, sleep disturbances, personality changes, and Post-Traumatic Stress Disorder (PTSD). Due to these varied effects, a lightning strike survivor requires immediate medical attention and ongoing care to address both their physical and psychological well-being.