Wrist and Hand Conditions
Wrist and Hand Conditions
Wrist and Hand Conditions
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Long QT syndrome<br />
The long QT syndrome is an abnormality of the electrical<br />
conduction system characterized by prolonged<br />
repolarization of the ventricle with an associated high risk<br />
of SCD.<br />
This syndrome can be congenital, pharmacogenic, or<br />
metabolic.<br />
It is often defined as a corrected QT interval of more than<br />
440 milliseconds.<br />
The mechanism of SCD is the development of wide,<br />
polymorphic tachycardia (ie, torsades de pointes). These<br />
potential fatal rhythms can be provoked by exerciserelated<br />
tachycardia<br />
Anyone with this condition should be restricted from<br />
competitive sports.
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