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2. Arrhythmia - Wikipedia

   en.wikipedia.org/wiki/Arrhythmia

   There are many inherited conditions and heart diseases that can affect young people which can subsequently cause sudden death without advance symptoms. [16] Causes of SADS in young people include viral myocarditis, long QT syndrome, Brugada syndrome, Catecholaminergic polymorphic ventricular tachycardia, hypertrophic cardiomyopathy and ...

3. Syndromes affecting the heart - Wikipedia

   en.wikipedia.org/wiki/Syndromes_affecting_the_heart

   A syndrome is a set of medical signs and symptoms that are correlated with each other. A syndrome can affect one or more of body systems. Different syndromes affect different groups of organs. This is a list of syndromes that may affect the heart. Syndromes affecting primarily the heart are written in bold letters. [1] [2]

4. Tachycardia-induced cardiomyopathy - Wikipedia

   en.wikipedia.org/wiki/Tachycardia-induced_cardio...

   People with TIC most often present with symptoms of congestive heart failure and/or symptoms related to their irregular heart rhythm. [1] Symptoms of congestive heart failure can include shortness of breath, ankle swelling, fatigue, and weight gain. [2] Symptoms of an irregular heart rhythm can include palpitations and chest discomfort. [2]

5. Cardiovascular disease - Wikipedia

   en.wikipedia.org/wiki/Cardiovascular_disease

   Cardiovascular disease (CVD) is any disease involving the heart or blood vessels. [3] CVDs constitute a class of diseases that includes: coronary artery diseases (e.g. angina, heart attack), heart failure, hypertensive heart disease, rheumatic heart disease, cardiomyopathy, arrhythmia, congenital heart disease, valvular heart disease, carditis, aortic aneurysms, peripheral artery disease ...

6. Long QT syndrome - Wikipedia

   en.wikipedia.org/wiki/Long_QT_syndrome

   The various forms of long QT syndrome, both congenital and acquired, produce abnormal heart rhythms (arrhythmias) by influencing the electrical signals used to coordinate individual heart cells. The common theme is a prolongation of the cardiac action potential – the characteristic pattern of voltage changes across the cell membrane that ...

7. 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 ...