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2. Premature ventricular contraction - Wikipedia

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

   Premature ventricular contractions may be associated with underlying heart disease, and certain characteristics are therefore elicited routinely: the presence of signs of heart disease or a known history of heart disease (e.g. previous myocardial infarction), as well as heart disease or sudden cardiac death in close relatives.

3. When Should You See a Doctor About Heart Palpitations ... - AOL

   www.aol.com/lifestyle/see-doctor-heart...

   Here's when they're harmless and when you should take them seriously.

4. Palpitations - Wikipedia

   en.wikipedia.org/wiki/Palpitations

   This article will explore the potential causes of palpitations, from benign triggers to more serious underlying cardiac conditions. This article will also discuss the key steps in evaluating palpitations, including history-taking, physical exams, and diagnostic tests, as well as the various treatment approaches based on the underlying causes. [2]

5. The One Thing You Should Never, Ever Do if You Have Heart ...

   www.aol.com/one-thing-never-ever-heart-102500060...

   What Causes Heart Palpitations? Heart palpitations have several potential causes, so it's critical to seek medical attention for them. "The most common causes of palpitations include cardiac ...

6. AV nodal reentrant tachycardia - Wikipedia

   en.wikipedia.org/wiki/AV_nodal_reentrant_tachycardia

   The main symptom of AVNRT is the sudden development of rapid regular palpitations. [1] These palpitations may be associated with a fluttering sensation in the neck, caused by near-simultaneous contraction of the atria and ventricles against a closed tricuspid valve leading to the pressure or atrial contraction being transmitted backwards into the venous system. [2]

7. Atrial fibrillation - Wikipedia

   en.wikipedia.org/wiki/Atrial_fibrillation

   Symptomatic episodes may involve heart palpitations, fainting, lightheadedness, loss of consciousness, shortness of breath, or chest pain. [2] Atrial fibrillation is associated with an increased risk of heart failure, dementia, and stroke. [3] [12] It is a type of supraventricular tachycardia. [14]