Sudden Cardiac Arrest at a Martial Arts Event
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@m2inla More likely to occur during the T wave as the hearts relaxing. Similar to the R on T phenomenom where a stimulus causes premature depolarization of cells that have not completely repolarized. Have witnessed a patient who experienced the RonT, we were lucky to recored it during a cardiac stress echo, good thing he had an inplantable defibrillator.
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The name is commotio cordis dickfaces i am a physician
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@BrockDoe It's a very rare event, but happens most commonly in sporting events amongst young, otherwise healthy people. The normal heart cycle has a predictible pattern, but if interrupted in a very narrow part of the QRS complex by a blunt traumatic insult, it will result in diminished or absent blood output from the heart.
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@BrockDoe u lost me :/
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gay i just realized I wrote the exact same thing as someone else........
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This is an occurrence, also called an R on T interval. Physical energy (fist) turning into electrical energy, delivered during the relative refractory period of the T wave in the cardiac conduction cycle (just after the QRS). The person will then immediately go into ventricular fibrillation.
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@SouliaBoy if you witnessed the arrest difibrillate first. if not get the blood moving first then shock.
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@bels10 well if what your referring to is a precordial thump, which has the same effect yes. but it could not be produced by doing cpr compressions. a fractured rib is much more likely (if your doing it right.) leading up to pneumothorax or hemothorax. compression's do not have the quick focal force to cause this.
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@socalfrijolito its commotio cordis also known as the r on t phenomenon. it however is not svt and people are not born with svt. svt is a comorbidity to a underlying heart condition. this man is experiencing ventricular fibrillation he needs defibrillation not a valsalva maneuver. nice try tho
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@socalfrijolito My 6-year-old has SVT. The first time she had an episode, they had to stop her heart and shock her back...never been so scared in my life. But SVT is not fatal like this; they had to restart my daughter to get her to a healthy rhythm, but she had a rhythm...BrockDoe (above) has it right. I know of a child who was literally scared to death because the shock to his system when his mom yelled "Boo" happened during that impossibly tiny window in the cardiac cycle.
It's Commotio Cordis. The disruption of the hearts cycle due to blunt force to the area surrounding the heart. Of the 1000 milliseconds in the average cadiac cycle there is a small window (10-30 millisecond ) where blunt force will cause this to occur. It basically puts them into Ventricular Tachycardia or Ventricular Fibbrilation. Both deadly heart rhythms.
BrockDoe 1 year ago 21
@groundhog2008 So the good out of this for you is that he wasn't American. Who cares what nationality he is he died in an unfortunate sporting event and our condolences should go out to him regardless of race or birth country.
riprider03 1 year ago 17