July 1, 2011 Saint Peter's Healthcare System Community Calendar Featured Article.
Heat stroke occurs when the body overheats and is unable to cool down. It is a medical emergency in adults and children. According to the National Centers for Disease Control, it is the most serious of heat-related disorders. Potentially fatal, left untreated it also can cause organ damage such as kidney failure. Although exercising or overexerting yourself in the heat at any age can contribute to heat stroke, it is not the only risk factor.
"Exertion isn't always to blame," says Michael L.Hochberg, M.D., of EmCare, chairman of Emergency Medicine at Saint Peter's University Hospital. "Pro-longed exposure to heat and humidity alone can cause heat stroke."
Children are at greater risk of developing heat stroke because their bodies heat up 3 to 5 times faster than that of an adult. It sets in when the body's core temperature rises, typically to temperatures of 106 degrees. Sweating stops and skin becomes red, hot and dry. "If the person isn't sweating then the body is unable
to release the heat," says Melissa Harper, M.D., of EmCare, an emergency medicine physician at Saint Peter's. "It is important to get treatment right away and bring the temperature down as quickly as possible."
Immediate first aid includes getting the person to a shaded area or an air-conditioned room or fanning the person if moving to an air-conditioned area is not possible. Ice packs can be placed on the neck, armpits and groin. The body can also be cooled down by spraying cool water from a hose or shower. It is important to get to an emergency department as soon as possible.
"There are no definite guidelines" Dr. Hochberg says, "for safe temperatures or time limits for heat exposure that can be potentially dangerous. But temperature isn't as important as humidity," he adds. "Humidity interferes more with our natural cooling mechanism, which is sweating. Most of us will be warned by our bodies to seek relief when heat becomes a danger."
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