An innovative analysis of shared segments within the genome—an indication of distant "relatedness"—has identified undiagnosed cases of Long QT syndrome, a rare disorder that can lead to abnormal heart rhythms, fainting ...
Sep 28, 2024
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Scientists at the Victor Chang Cardiac Research Institute, working with colleagues at the Vanderbilt University Medical Center, have developed a world-first, individualized risk prediction tool for people suffering from a ...
Sep 26, 2024
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People who exercise vigorously and have long QT syndrome (LQTS), an inherited disorder of the heart's electrical system that leads to chaotic heartbeats, do not have a higher risk of adverse cardiac events compared to those ...
Jul 25, 2024
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I've heard about several people who have experienced sudden cardiac arrest. What is cardiac arrest? And how is it different from a heart attack? What do you do for someone who has this condition?
Aug 13, 2023
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Increasing use of genetic testing means people may discover they have a gene variant associated with some types of cardiovascular disease (CVD). A new scientific statement, published today in the American Heart Association ...
Mar 27, 2023
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The sex hormone estrogen has a negative impact on heartbeat regulation, according to an experimental study from Linköping University, Sweden, published in Science Advances. Estrogen impact seems to interact with hereditary ...
Mar 15, 2023
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In a new study published in Circulation: Genomics & Precision Medicine, Mayo Clinic researchers designed and developed the first suppression-replacement KCNH2 gene therapy for correcting both long QT syndrome (LQTS) and short ...
Nov 21, 2022
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Less than 1% of the population has been diagnosed with Long QT syndrome—a rare heart condition that can cause chaotic, sometimes fatal, heart rhythms.
May 25, 2022
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Researchers make a compelling, evidence-based case for expanding the diagnostic workup to include cardiac arrhythmias when a normally continent individual experiences enuresis nocturna (involuntary urination during sleep). ...
Apr 7, 2022
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When should patients and family members undergo genetic assessment for a heart condition? Find out in an international consensus document published in EP Europace, a journal of the European Society of Cardiology (ESC) and ...
Apr 4, 2022
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The long QT syndrome (LQTS) is a rare inborn heart condition in which delayed repolarization of the heart following a heartbeat increases the risk of episodes of torsade de pointes (TDP, a form of irregular heartbeat that originates from the ventricles). These episodes may lead to palpitations, fainting and sudden death due to ventricular fibrillation. Episodes may be provoked by various stimuli, depending on the subtype of the condition.
The condition is so named because of the appearances of the electrocardiogram (ECG/EKG), on which there is prolongation of the QT interval. In some individuals the QT prolongation occurs only after the administration of certain medications.
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