Long QT Syndrome

Common Name(s)

Long QT Syndrome

Long QT syndrome is a disorder of the heart’s electrical activity that can cause sudden, uncontrollable, and irregular heartbeats (arrhythmia), which may lead to sudden death. Long QT syndrome can be detected by electrocardiogram (EKG). It can be caused by a variety of different gene mutations (changes). It can also be acquired (noninherited) and may be brought on by certain medicines and other medical conditions.
 

Advocacy and Support Organizations

 

Condition Specific Organizations

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

Kids with Heart National Association for Children's Heart Disorders

Our organization was formed in 1985 with the main mission of providing support, information, resources, and education for the families of the children living with congenital heart defects and to promote public awareness of the issues that these families live with on a day to day basis.

Last Updated: 4 May 2015

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SADS (Sudden Arrhythmia Death Syndromes) Foundation

Our mission is to save the lives of young people who are genetically predisposed to sudden death due to cardiac arrhythmia and to provide education and support to families and the medical community.

Last Updated: 23 Apr 2015

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General Support Organizations

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How do you compare to others with this condition?

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Advocacy and Support Organizations

 

Condition Specific Organizations

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

Kids with Heart National Association for Children's Heart Disorders

Our organization was formed in 1985 with the main mission of providing support, information, resources, and education for the families of the children living with congenital heart defects and to promote public awareness of the issues that these families live with on a day to day basis.

http://www.kidswithheart.org

Last Updated: 4 May 2015

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SADS (Sudden Arrhythmia Death Syndromes) Foundation

Our mission is to save the lives of young people who are genetically predisposed to sudden death due to cardiac arrhythmia and to provide education and support to families and the medical community.

http://www.StopSADS.org

Last Updated: 23 Apr 2015

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General Support Organizations

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General Resources

Drugs to Avoid List

Listing of drugs to avoid if you have Long QT Syndrome

Updated 29 Apr 2014

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SADS Foundation Website

Information on living with SADS, diagnosis, treatment, prevention, and advocacy/education.

Updated 29 Apr 2014

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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" returned 568 free, full-text research articles on human participants. First 3 results:

A Neonate with Susceptibility to Long QT Syndrome Type 6 who Presented with Ventricular Fibrillation and Sudden Unexpected Infant Death.
 

Author(s): Charles W Sauer, Krishelle L Marc-Aurele

Journal:

 

BACKGROUND This is a case of a neonate with susceptibility to long QT syndrome (LQTS) who presented with a sudden unexpected infant death. Experts continue to debate whether universal electrocardiogram (ECG) screening of all newborns is feasible, practical, and cost-effective. CASE ...

Last Updated: 28 Jul 2016

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Generation of human induced pluripotent stem cell line from a patient with a long QT syndrome type 2.
 

Author(s): Azra Fatima, Dina Ivanyuk, Stefan Herms, Stefanie Heilmann-Heimbach, Orla O'Shea, Charlotte Chapman, Zsuszanna Izsvák, Martin Farr, Jürgen Hescheler, Tomo Šarić

Journal: Stem Cell Res. 2016 Mar;16(2):304-7.

 

We report here the generation of human iPS cell line UKKi009-A from dermal fibroblasts of a patient carrying heterozygous mutation c.3035-3045delTCCCTCGATGC, p.Leu1012Pro (fs*55) in KCNH2 gene leading to long QT syndrome type 2 (LQT2). We used the Sleeping Beauty transposon-based ...

Last Updated: 27 Jun 2016

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Long QT Syndrome Leading to Multiple Cardiac Arrests After Posaconazole Administration in an Immune-Compromised Patient with Sepsis: An Unusual Case Report.
 

Author(s): George Panos, Dimitrios Velissaris, Vasilios Karamouzos, Charalampos Matzaroglou, Minos Tylianakis

Journal:

 

We present the case of a septic patient with severe immunodeficiency, who developed QT interval prolongation followed by episodes of lethal cardiac arrhythmia. Cardiac events occurred after posaconazole administration, incriminating posaconazole use, alone or in combination with voriconazole, ...

Last Updated: 29 Apr 2016

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Reviews from the PubMed Database

Review articles summarize what is currently known about a disease. They discuss research previously published by others.
The terms "Long QT Syndrome" returned 50 free, full-text review articles on human participants. First 3 results:

A Tale of 2 Diseases: The History of Long-QT Syndrome and Brugada Syndrome.
 

Author(s): Ofer Havakuk, Sami Viskin

Journal: J. Am. Coll. Cardiol.. 2016 Jan;67(1):100-8.

 

The Brugada syndrome (BrS) and long-QT syndrome (LQTS) present as congenital or acquired disorders with diagnostic electrocardiograms (ST-segment elevation and prolonged QT interval, respectively) and increased risk for malignant arrhythmias. Our understanding of the 2 disease forms ...

Last Updated: 14 Jan 2016

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The link between abnormal calcium handling and electrical instability in acquired long QT syndrome--Does calcium precipitate arrhythmic storms?
 

Author(s): Jan Němec, Jong J Kim, Guy Salama

Journal: Prog. Biophys. Mol. Biol.. 2016 Jan;120(1-3):210-21.

 

Release of Ca(2+) ions from sarcoplasmic reticulum (SR) into myocyte cytoplasm and their binding to troponin C is the final signal form myocardial contraction. Synchronous contraction of ventricular myocytes is necessary for efficient cardiac pumping function. This requires both shuttling ...

Last Updated: 26 Mar 2016

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A Systematic Review on the Cost-Effectiveness of Genetic and Electrocardiogram Testing for Long QT Syndrome in Infants and Young Adults.
 

Author(s): Fernando Matias Gonzalez, Maria Assunta Veneziano, Anna Puggina, Stefania Boccia

Journal: Value Health. 2015 Jul;18(5):700-8.

 

Recent improvements in the identification of the genetic basis of long QT syndrome (LQTS) have led to significant changes in the diagnosis and management of this life-threatening condition. Genetic and electrocardiogram (ECG) tests are the most relevant examples among testing strategies ...

Last Updated: 22 Aug 2015

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Symptoms, Diagnosis, and Treatment

There are currently no related results available in GeneReviews.

 
 
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Clinical Trial Information This information is provided by ClinicalTrials.gov

Long QT Syndrome Screening in Newborns
 

Status: Recruiting

Condition Summary: Long QT Syndrome

 

Last Updated: 26 Sep 2016

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The Canadian National Long QT Syndrome Registry
 

Status: Recruiting

Condition Summary: Long QT Syndrome

 

Last Updated: 16 May 2016

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Prospective Identification of Long QT Syndrome in Fetal Life
 

Status: Recruiting

Condition Summary: Long QT Syndrome

 

Last Updated: 22 Aug 2016

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