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Sympathetic activity and arrhythmias in long QT: a missing link?

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Presentation title: Sympathetic activity and arrhythmias in long QT: a missing link?
Author(s): Wilde A.A.M. (Amsterdam, NL)
Date: 30 August 2004
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Sympathetic activity and Arrhythmias in long QT syndrome A missing link? ESC, Munchen 2004

Long QT syndrome Subdivision of genotyped patients


Congenital LQTS symptomatology




LQT1 pre-exercise QTc = 440 ms

LQT1 during exercise QTc = 500 ms




LQTS1 model (perfused LV wedge) Shimizu & Antzelevitch, Circulation 1998;98:2314-22

LQTS1 model (perfused LV wedge) Shimizu & Antzelevitch, Circulation 1998;98:2314-22


Long QT syndrome, type 1 & 2 Mechanisms of reduced current

KCNQ1, ß-adrenoceptor stimulation




KCNQ1, ß-adrenoceptor stimulation

KCNQ1, ß-adrenoceptor stimulation



Arrhythmogenesis in LQTS type 1

Arrhythmogenesis in LQTS type 1

Acknowledgements
 
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