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Should the Recent Sudden Deaths of Athletes Pose Concerns? Featured

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Alexander-Dale-Oen deathShould schools and parents of young athletes be concerned regarding the rising risk of sudden death in athletes, and whether the risk for death increases as the level of competition increases?

Relying on media reports is no basis for estimating the incidence of sudden cardiac death in athletes, nor does it provide the necessary basis to establish policy on the use of 12-lead electrocardiograms (ECGs) in pre-participation physicals, researchers agree.

Sudden Cardiac Death

Symptoms before Sudden Cardiac Death (SCD) include syncope, chest pain, palpitations, dyspnea, and fatigue, problems that are diffuse and common, which cannot be adequately assessed with a history and clinical exam.

New Death New Scrutiny

Less than two years after U.S. swimmer Fran Crippen died during an open-water race in Dubai, the swimming world lost another star athlete at just 26 years old when Norwegian Olympic swimmer Alexander Dale Oen, 26, passed away on April 30 at an Arizona training facility. The reigning world champion in the 100-meter breaststroke suffered cardiac arrest and was found on his bathroom floor by one of his olympic teammates. Dale Oen would have been a favorite to win the race at the London Olympics.

Although the cause of death for Dale is not yet known, the incident focused attention on the ongoing debate about the risk of sudden death in athletes, and whether the risk for death increases as the level of competition increases.

Mats Borjesson, MD, of Sahlgrenska University Hospital/Ostra at Goteborg University in Goteborg, Sweden, and Nicole Panhuyzen-Goedkoop, MD, of Sports Medisch Centrum in Papendal, The Netherlands, said the best available data put the incidence at 1-3 per 100,000 person years, but both pointed out that this estimate is probably low.

A study published last year in Circulation: Journal of the American Heart Association, reported that 1 in 44,000 National Collegiate Athletic Association athletes is a victim of sudden cardiac death each year, but Borjesson said that "the latest NCAA data for division I puts the risk at about one in 3,000."

And the risk of sudden death appears to be gender specific, estimated to be as much as 9 times greater for male athletes.

The most common causes are inherited or congenital cardiac disease, often ion channelopathies, but blunt trauma to the chest causing commotio cordis is also a factor, as is infection, Panhuyzen-Goedkoop said.

In an interview, Borjesson said the possibility of infective endocarditis should not be underestimated, "so we don't want athletes participating when they are sick."

But Borjesson emphasized the need for solid data -- data from ECGs -- to take the guessing out of sudden death incidence and to save lives.

In the U.S. there has been resistance to ECGs for pre-participation screening based on the low-risk for sudden cardiac death and the cost of screening. Current recommendations call for clinical examination and ECG only if the exam is inconclusive or if an ECG is needed to confirm a diagnosis.

"Symptoms before Sudden Cardiac Death (SCD) include syncope, chest pain, palpitations, dyspnea, and fatigue -- problems that are diffuse and common, which cannot be adequately assessed with a history and clinical exam," Borjesson said.

And Borjesson agreed that using ECG would identify more athletes at risk and would likely result in more treatment, thus more cost, but "if you are going fishing, you buy the boat, hire the fisherman and the equipment so that you catch more fish. With the ECG we can catch more fish."

Borjesson and Nicole Panhuyzen-Goedkoop declared no financial conflicts.

Source: Panhuyzen-Goedkoop N "Incidence and causes of sudden death in sport" EuroPRevent 2012; Presentation 232.

Additional source: Borjesson M "Role of electrocardiogramme in pre-participation cardiovascular screening of athletes" EuroPRevent 2012; Presentation 233.


Last modified on Wednesday, 19 December 2012 18:16
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