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  2. Brugada syndrome - Wikipedia

    en.wikipedia.org/wiki/Brugada_syndrome

    The abnormal heart rhythms seen in those with Brugada syndrome are typically dangerous arrhythmias such as ventricular fibrillation or polymorphic ventricular tachycardia, but those with BrS are also more likely to experience rapid heart rates due to less dangerous arrhythmias such as AV nodal re-entrant tachycardia [30] and abnormally slow ...

  3. Arrhythmia - Wikipedia

    en.wikipedia.org/wiki/Arrhythmia

    Conditions that increase automaticity include sympathetic nervous system stimulation and hypoxia. The resulting heart rhythm depends on where the first signal begins: If it is the sinoatrial node, the rhythm remains normal but rapid; if it is an ectopic focus, many types of dysrhythmia may ensue.

  4. Long QT syndrome - Wikipedia

    en.wikipedia.org/wiki/Long_QT_syndrome

    Long 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]

  5. What You Need to Know About Abnormal Heart Rhythm - AOL

    www.aol.com/lifestyle/know-abnormal-heart-rhythm...

    An abnormal heart rhythm, also called an arrhythmia, is when your heart beats too fast, too slow, or irregularly. Here’s everything you need to know. ... An abnormal heart rhythm, also called an ...

  6. Short QT syndrome - Wikipedia

    en.wikipedia.org/wiki/Short_QT_syndrome

    Short QT syndrome (SQT) is a very rare genetic disease of the electrical system of the heart, and is associated with an increased risk of abnormal heart rhythms and sudden cardiac death. [1] The syndrome gets its name from a characteristic feature seen on an electrocardiogram (ECG) – a shortening of the QT interval.

  7. These 3 Heart Conditions May Impact Brain Health ... - AOL

    www.aol.com/3-heart-conditions-may-impact...

    These three heart conditions are atrial fibrillation, heart failure and coronary heart disease. ... atrial fibrillation is the most common heart rhythm disorder in adults. In the U.S. alone, 2.7 ...

  8. Alcoholic cardiomyopathy - Wikipedia

    en.wikipedia.org/wiki/Alcoholic_cardiomyopathy

    Another potential complication of alcoholic cardiomyopathy is the development of arrhythmias, or abnormal heart rhythms. [7] These irregular heart rhythms can range from mild to severe and may cause symptoms such as palpitations, lightheadedness, or even loss of consciousness. [7] In some cases, arrhythmias can lead to sudden cardiac arrest, a ...

  9. Sinus node dysfunction - Wikipedia

    en.wikipedia.org/wiki/Sinus_node_dysfunction

    Often sinus node dysfunction produces no symptoms, especially early in the disease course. Signs and symptoms usually appear in more advanced disease and more than 50% of patients will present with syncope or transient near-fainting spells as well as bradycardias that are accompanied by rapid heart rhythms, referred to as tachycardia-bradycardia syndrome [4] [5] Other presenting signs or ...

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