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  2. Premature ventricular contraction - Wikipedia

    en.wikipedia.org/wiki/Premature_ventricular...

    Although there are many possible symptoms associated with PVCs, PVCs may also have no symptoms at all. PVCs may be perceived as a skipped heart beat, a strong beat, palpitations, or lightheadedness. They may also cause chest pain, a faint feeling, fatigue, or hyperventilation after exercise. [2] Symptoms may be more pronounced at times of stress.

  3. Premature heart beat - Wikipedia

    en.wikipedia.org/wiki/Premature_heart_beat

    Premature heart beats come in two different types: premature atrial contractions and premature ventricular contractions. Often they cause no symptoms but may present with fluttering in the chest or a skipped beat. They typically have no long-term complications. They most often happen naturally but may be associated with caffeine, nicotine, or ...

  4. Palpitations - Wikipedia

    en.wikipedia.org/wiki/Palpitations

    People with no symptoms, normal lab tests, and normal EKG results can usually leave the emergency department safely. They should follow up with their primary care doctor or a cardiologist. [ 1 ] However, patients with palpitations linked to fainting ( syncope ), uncontrolled arrhythmias, poor blood flow ( hemodynamic issues), or chest pain ...

  5. Bigeminy - Wikipedia

    en.wikipedia.org/wiki/Bigeminy

    The constant interval between the sinus beat and PVC suggests a reentrant etiology rather than spontaneous automaticity of the ventricle. [3] Premature atrial contractions by contrast do not have a compensatory pause, since they reset the sinus node, but atrial or supraventricular bigeminy can occur. If the PACs are very premature, the ...

  6. Arrhythmia - Wikipedia

    en.wikipedia.org/wiki/Arrhythmia

    Those who have severe symptoms from an arrhythmia or are medically unstable may receive urgent treatment with a controlled electric shock in the form of cardioversion or defibrillation. [6] Arrhythmia affects millions of people. [4] In Europe and North America, as of 2014, atrial fibrillation affects about 2% to 3% of the population. [9]

  7. Arrhythmogenic cardiomyopathy - Wikipedia

    en.wikipedia.org/wiki/Arrhythmogenic_cardiomyopathy

    Those affected by arrhythmogenic cardiomyopathy may not have any symptoms at all despite having significant abnormalities in the structure of their hearts. [6] If symptoms do occur, the initial presentation is often due to abnormal heart rhythms (arrhythmias) which in arrhythmogenic cardiomyopathy may take the form of palpitations, or blackouts. [7]

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  9. Wolff–Parkinson–White syndrome - Wikipedia

    en.wikipedia.org/wiki/Wolff–Parkinson–White...

    [2] [3] About 60% of people with the electrical problem developed symptoms, [5] which may include an abnormally fast heartbeat, palpitations, shortness of breath, lightheadedness, or syncope. [1] Rarely, cardiac arrest may occur. [1] The most common type of irregular heartbeat that occurs is known as paroxysmal supraventricular tachycardia. [1]