Long QT syndrome 9

Common Name(s)

Long QT syndrome 9

Congenital long QT syndrome is electrocardiographically characterized by a prolonged QT interval and polymorphic ventricular arrhythmias (torsade de pointes). These cardiac arrhythmias may result in recurrent syncope, seizure, or sudden death ({2:Jongbloed et al., 1999}). For a discussion of genetic heterogeneity of long QT syndrome, see LQT1 ({192500}).
 

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Advocacy and Support Organizations

 

Condition Specific Organizations

Following organizations serve the condition "Long QT syndrome 9" for support, advocacy or research.

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General Support Organizations

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Scientific Literature

Articles from the PubMed Database

Research articles describe the outcome of a single study. They are the published results of original research.
The terms "Long QT syndrome 9" returned 3 free, full-text research articles on human participants. First 3 results:

To be or not to be: long-QT syndrome type 9.
 

Author(s): Michael J Cutler, Elizabeth S Kaufman

Journal: Circ Cardiovasc Genet. 2013 Oct;6(5):439-40.

 

Last Updated: 16 Oct 2013

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The interaction of caveolin 3 protein with the potassium inward rectifier channel Kir2.1: physiology and pathology related to long qt syndrome 9 (LQT9).
 

Author(s): Ravi Vaidyanathan, Amanda L Vega, Chunhua Song, Qing Zhou, Bi-Hua Tan, Bihua Tan, Stuart Berger, Jonathan C Makielski, Lee L Eckhardt

Journal: J. Biol. Chem.. 2013 Jun;288(24):17472-80.

 

Mutations in CAV3 cause LQT syndrome 9 (LQT9). A previously reported LQT9 patient had prominent U waves on ECG, a feature that has been correlated with Kir2.1 loss of function. Our objective was to determine whether caveolin 3 (Cav3) associates with Kir2.1 and whether LQT9-associated ...

Last Updated: 17 Jun 2013

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Biophysical properties of 9 KCNQ1 mutations associated with long-QT syndrome.
 

Author(s): Tao Yang, Seo-Kyung Chung, Wei Zhang, Jonathan G L Mullins, Caroline H McCulley, Jackie Crawford, Judith MacCormick, Carey-Anne Eddy, Andrew N Shelling, John K French, Ping Yang, Jonathan R Skinner, Dan M Roden, Mark I Rees

Journal: Circ Arrhythm Electrophysiol. 2009 Aug;2(4):417-26.

 

Inherited long-QT syndrome is characterized by prolonged QT interval on the ECG, syncope, and sudden death caused by ventricular arrhythmia. Causative mutations occur mostly in cardiac potassium and sodium channel subunit genes. Confidence in mutation pathogenicity is usually reached ...

Last Updated: 7 Oct 2009

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Reviews from the PubMed Database

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The terms "Long QT syndrome 9" returned 0 free, full-text review articles on human participants.

 
 
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