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  2. Atrial fibrillation - Wikipedia

    en.wikipedia.org/wiki/Atrial_fibrillation

    Atrial fibrillation (AF, AFib or A-fib) is an abnormal heart rhythm (arrhythmia) characterized by rapid and irregular beating of the atrial chambers of the heart. [11] [12] It often begins as short periods of abnormal beating, which become longer or continuous over time. [4]

  3. Arrhythmia - Wikipedia

    en.wikipedia.org/wiki/Arrhythmia

    The simplest specific diagnostic test for assessment of heart rhythm is the electrocardiogram (abbreviated ECG or EKG). [22] [23] A Holter monitor is an EKG recorded over a 24-hour period, to detect arrhythmias that may happen briefly and unpredictably throughout the day. [citation needed]

  4. Antiarrhythmic agent - Wikipedia

    en.wikipedia.org/wiki/Antiarrhythmic_agent

    Antiarrhythmic agents, also known as cardiac dysrhythmia medications, are a class of drugs that are used to suppress abnormally fast rhythms (tachycardias), such as atrial fibrillation, supraventricular tachycardia and ventricular tachycardia. Many attempts have been made to classify antiarrhythmic agents.

  5. Dysrhythmia - Wikipedia

    en.wikipedia.org/wiki/Dysrhythmia

    Dysrhythmia may refer to: Circadian dysrhythmias , disturbances of circadian (daily) rhythms including jet lag and disturbed sleep timing Cardiac dysrhythmia , a medical condition causing irregular heart rate, also called arrhythmia

  6. Cardiac arrest - Wikipedia

    en.wikipedia.org/wiki/Cardiac_arrest

    Although it is not recognized as an inherited condition, Wolff–Parkinson–White syndrome in which an accessory conduction pathway bypassing the atrioventricular node is present and can cause abnormal conduction patterns leading to supraventricular tachycardia, pre-excited atrial fibrillation, and cardiac arrest. [31]

  7. Cardiology - Wikipedia

    en.wikipedia.org/wiki/Cardiology

    Cardiac arrhythmia, also known as "cardiac dysrhythmia" or "irregular heartbeat", is a group of conditions in which the heartbeat is too fast, too slow, or irregular in its rhythm. A heart rate that is too fast – above 100 beats per minute in adults – is called tachycardia.

  8. Ventricular fibrillation - Wikipedia

    en.wikipedia.org/wiki/Ventricular_fibrillation

    Ventricular fibrillation (V-fib or VF) is an abnormal heart rhythm in which the ventricles of the heart quiver. [2] It is due to disorganized electrical activity. [2] Ventricular fibrillation results in cardiac arrest with loss of consciousness and no pulse. [1] This is followed by sudden cardiac death in the absence of treatment. [2]

  9. Bradycardia - Wikipedia

    en.wikipedia.org/wiki/Bradycardia

    Bradycardia, also called bradyarrhythmia, is a resting heart rate under 60 beats per minute (BPM). [1] While bradycardia can result from various pathologic processes, it is commonly a physiologic response to cardiovascular conditioning or due to asymptomatic type 1 atrioventricular block.