Few Student-Athletes Survive Sudden Cardiac Arrest

June 28 -- FRIDAY, June 27 (HealthDay News) -- Just one in 10 U.S. student-athletes who suffer sudden cardiac arrest survives, a new study found.

Sudden cardiac arrest is the leading cause of death in young athletes and the leading overall cause of death in the United States, claiming more than 250,000 lives annually. It occurs without warning, when the heart's electrical system stops working, so no blood is pumped throughout the body. Approximately one case of sudden cardiac death occurs every three days in organized youth sports, according to background information with the study.

"Overall, there is pretty poor survival from sudden cardiac arrest in young people," said study co-author Dr. Kimberly G. Harmon, of the University of Washington Department of Orthopedics and Sports Medicine.

But, there is a trend toward improved survival, Harmon said. "This is probably due to improved access to external automatic defibrillators (AEDs)," she said. "As we study this over the next several years, we are going to find that survival will improve as emergency plans and AEDs become more available and used."

Access to defibrillators within three to five minutes could save lives, Harmon said. Defibrillation sends an electrical current through the heart, which can start the heart functioning normally again. To accomplish this, there needs to be an AED on site during practices and games, she said.

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For the study, published in the June issue of the HeartRhythm Journal, Harmon's group did an online search looking for cases of sudden cardiac death from 2000 to 2006. They found a total of 486 cases in elementary schools, middle schools, high schools and colleges.

The overall survival rate was 11 percent, ranging from 4 percent to 21 percent a year. Of all cases of sudden cardiac death, 83 percent involved males and 17 percent involved females, the researchers found.

"Schools and places where there are large gatherings of people, where there is potentially going to be an arrest, need to have an AED, and an emergency action plan on how to use the AED," Harmon said.