Risk of Sickle Cell Trait in Young Athletes

by Sheela Philomena on  April 05, 2011 at 11:07 AM Research News
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Young African-American athletes with sickle cell trait might be naive to sudden death, most commonly during football training.

The sickle cell trait (SCT), which affects approximately 8 percent of African-Americans in the U.S., has been associated with sudden death in military recruits undergoing vigorous exercise. Due to the potential hypothesis that SCT may also cause sudden death in young highly trained athletes during physical activity, the National Collegiate Athletic Association (NCAA) has recently made screening of athletes for SCT mandatory for all Division I athletes prior to their participation in college athletics.

However, Kevin M. Harris, MD, co-director of the Acute Aortic Dissection Program and director of the echocardiography laboratory at the Minneapolis Heart Institute at Abbott Northwestern Hospital in Minneapolis, pointed out that there are little data available documenting cases of SCT-related sudden death in athletes.

"Originally, the sickle cell trait was considered a benign condition," said Harris, who is the study's lead author. "However, studies began to demonstrate that in extreme physical situations, such as military recruit training, some individuals with SCT can be at risk for dying suddenly. Then, we began to see the same occurrences in athletes."

Therefore, Harris and colleagues accessed the 30-year U.S. National Registry of Sudden Death in Athletes, which is maintained by the Minneapolis Heart Institute Foundation, in order to determine the frequency and profile of SCT deaths.

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