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  2. Premature ventricular contraction - Wikipedia

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

    A premature ventricular contraction (PVC) is a common event where the heartbeat is initiated by Purkinje fibers in the ventricles rather than by the sinoatrial node. PVCs may cause no symptoms or may be perceived as a "skipped beat" or felt as palpitations in the chest. PVCs do not usually pose any danger. [1]

  3. Ectopic beat - Wikipedia

    en.wikipedia.org/wiki/Ectopic_beat

    Ectopic beat is a disturbance of the cardiac rhythm frequently related to the electrical conduction system of the heart, in which beats arise from fibers or group of fibers outside the region in the heart muscle ordinarily responsible for impulse formation (i.e., the sinoatrial node).

  4. Roemheld syndrome - Wikipedia

    en.wikipedia.org/wiki/Roemheld_syndrome

    Treatment of the primary gastroenterological distress is the first concern, mitigation of gastric symptoms will also alleviate cardiac distress. Anticholinergics, magnesium, or sodium (to raise blood pressure) supplements

  5. Arrhythmia - Wikipedia

    en.wikipedia.org/wiki/Arrhythmia

    PVCs that occur at intervals of 2 normal beats to 1 PVC, or 1 normal beat to 2 PVCs, are termed "PVCs in trigeminy" [13] Groups of three premature ventricular beats are called triplets and are considered a brief run of non-sustained ventricular tachycardia (NSVT); if the grouping lasts for more than 30 seconds, it is considered sustained ...

  6. Premature heart beat - Wikipedia

    en.wikipedia.org/wiki/Premature_heart_beat

    A premature heart beat or extrasystole [1] is a heart rhythm disorder corresponding to a premature contraction of one of the chambers of the heart. Premature heart beats come in two different types: premature atrial contractions and premature ventricular contractions.

  7. Bigeminy - Wikipedia

    en.wikipedia.org/wiki/Bigeminy

    Bigeminy is a cardiac arrhythmia in which there is a single ectopic beat, or irregular heartbeat, following each regular heartbeat.Most often this is due to ectopic beats occurring so frequently that there is one after each sinus beat, or normal heartbeat.

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  9. 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.