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Long QT syndrome - Symptoms and causes - Mayo Clinic
https://www.mayoclinic.org/diseases-conditions/long-qt-syndrome/symptoms-causes/syc-20352518
WebJan 12, 2024 · In long QT syndrome, the heart's electrical system takes longer than usual to recharge between beats. This delay is called a prolonged QT interval. It may be seen on an electrocardiogram (ECG). Long QT syndrome is often grouped into two main categories, depending on the cause. If you are born with the condition, it's called congenital long QT ...
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Acquired long QT syndrome: Definitions, pathophysiology, and ... - UpToDate
https://www.uptodate.com/contents/acquired-long-qt-syndrome-definitions-pathophysiology-and-causes
WebSep 21, 2022 · Long QT syndrome (LQTS) is a disorder of myocardial repolarization characterized by a prolonged QT interval on the electrocardiogram (ECG) ( waveform 1 ). This syndrome is associated with an increased risk of polymorphic ventricular tachycardia (VT) and a characteristic life-threatening cardiac arrhythmia also known as torsades de …
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QT prolongation: Definition, causes, treatment, and more
https://www.medicalnewstoday.com/articles/qt-prolongation
WebSep 30, 2021 · What to know about QT prolongation. QT intervals. Normal QT intervals. Medications. Risk factors. Symptoms. Diagnosis. Treatment. Summary. QT prolongation occurs when the heart muscle takes...
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QT Interval • LITFL • ECG Library Basics - Life in the Fast Lane
https://litfl.com/qt-interval-ecg-library/
WebMay 14, 2022. Home ECG Library. Definition. Time from the start of the Q wave to the end of the T wave. Represents time taken for ventricular depolarisation and repolarisation, effectively the period of ventricular systole from ventricular isovolumetric contraction to …
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Long QT Syndrome: Symptoms & Treatment - Cleveland Clinic
https://my.clevelandclinic.org/health/diseases/17183-long-q-t-syndrome-lqts
WebMar 20, 2023 · The symptoms of long QT syndrome appear when the syndrome leads to Torsades de Pointes. During this arrhythmia, your heart can’t pump blood effectively. If your brain doesn’t get enough blood supply, you can faint and have a seizure. If the arrhythmia continues, sudden death will occur.
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Long QT Syndrome - StatPearls - NCBI Bookshelf
https://www.ncbi.nlm.nih.gov/books/NBK441860/
WebDec 26, 2022 · Cardiac events and fatal arrhythmias may occur when the QT interval is prolonged either congenitally or through acquired causes. This activity reviews the causes of QT prolongation and highlights the role of the interprofessional team in its management. Objectives: Identify the etiology of prolonged QT syndrome.
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Long QT syndrome - Diagnosis and treatment - Mayo Clinic
https://www.mayoclinic.org/diseases-conditions/long-qt-syndrome/diagnosis-treatment/drc-20352524
WebJan 12, 2024 · A prolonged QT interval is an irregular heart rhythm that can be seen on an electrocardiogram. It reflects a disturbance in how the heart's bottom chambers (ventricles) send signals. In a prolonged QT interval, it takes longer than usual for …
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Long QT syndrome - Wikipedia
https://en.wikipedia.org/wiki/Long_QT_syndrome
WebLong QT syndrome ( LQTS) is a condition affecting repolarization (relaxing) of the heart after a heartbeat, giving rise to an abnormally lengthy QT interval. [7] . It results in an increased risk of an irregular heartbeat which can result in fainting, drowning, seizures, or sudden death. [1] .
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Long QT Syndrome (QT Prolongation): Causes, Symptoms, Treatment - WebMD
https://www.webmd.com/heart-disease/long-qt-syndrome-overview
WebApr 19, 2022 · 4 min read. Long QT syndrome (LQTS) is rare disorder where your heart takes longer than usual to recover after each beat. It affects one in 5,000 people and can raise the risk of “torsades de...
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Long QT Interval Syndromes - Cardiovascular Disorders - Merck …
https://www.merckmanuals.com/professional/cardiovascular-disorders/arrhythmogenic-cardiac-disorders/long-qt-interval-syndromes
WebThe long QT interval syndromes (LQTS) result from any congenital or acquired disorder of cardiac ion channel function or regulation (channelopathy) that prolongs ventricular myocyte action potential duration as reflected by prolongation of the rate-corrected QT interval on …
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