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14991338 tn?1447193706

post race cardiac arrests.

what are your thoughts as to why 60 if not 70% of cardiac arrests happen close or at the end of races?
half marathn's for example.

i havent had a chance to ask my cardiologist yet, but some people have said excess adrenaline with low blood volume.

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14991338 tn?1447193706
i see. no just curious really.

i have loads of questions for my cardiologist but havent had the time to see him.

would you say in them very mi-nute cases of this phenomenon, that correctly cooling down would stop the cardiac arrest?

ive heard alot about structural issues causing arrests ONLY during cool down period. surely one would expect the hardest work load during the workout to be the root cause
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1423357 tn?1511085442
I believe what you're saying could be a cause.  But its not the adrenaline directly but rather indirectly.  A lot of these people have underlying heart issues; sturctutal issues which may cause in sufficient ejection of blood.  Adrenaline remains following a race or a run and causes the heart to beat fast and hard.  While the runner recovers, blood is pooling in the legs because the muscles are a rest and are longer squeezing the blood out of them. Now perhaps due to some structural abnormality, the ventricles aren't filling  sufficiently to circulate an adequate volume of oxygen enriched blood to the heart.  This COULD lead to an arrhythmia which COULD turn into cardiac arrest.  But  I would imagine that if you look at the statistics, the number of deaths due to this occurring are very low.  Are you concerned about yourself, or just curious?
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