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2. Arrhythmia - Wikipedia

   en.wikipedia.org/wiki/Arrhythmia

   Arrhythmias, also known as cardiac arrhythmias, are irregularities in the heartbeat, including when it is too fast or too slow. [ 2] A resting heart rate that is too fast – above 100 beats per minute in adults – is called tachycardia, and a resting heart rate that is too slow – below 60 beats per minute – is called bradycardia. [ 2]

3. 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] It may also start as other forms of arrhythmia such as atrial ...

4. Tachycardia - Wikipedia

   en.wikipedia.org/wiki/Tachycardia

   Tachycardia, also called tachyarrhythmia, is a heart rate that exceeds the normal resting rate. [ 1] In general, a resting heart rate over 100 beats per minute is accepted as tachycardia in adults. [ 1] Heart rates above the resting rate may be normal (such as with exercise) or abnormal (such as with electrical problems within the heart).

5. Ventricular tachycardia - Wikipedia

   en.wikipedia.org/wiki/Ventricular_tachycardia

   The term ventricular arrhythmia refers to the group of abnormal cardiac rhythms originating from the ventricle, which includes ventricular tachycardia, ventricular fibrillation, and torsades de pointes. [2] In those who have normal blood pressure and strong pulse, the antiarrhythmic medication procainamide may be used. [2]

6. Arrhythmogenic cardiomyopathy - Wikipedia

   en.wikipedia.org/wiki/Arrhythmogenic_cardiomyopathy

   Arrhythmogenic cardiomyopathy ( ACM) is an inherited heart disease. [ 1] ACM is caused by genetic defects of parts of the cardiac muscle known as desmosomes, areas on the surface of muscle cells which link them together. The desmosomes are composed of several proteins, and many of those proteins can have harmful mutations .

7. Sinus arrhythmia - Wikipedia

   en.wikipedia.org/wiki/Sinus_arrhythmia

   Sinus arrhythmia is a commonly encountered variation of normal sinus rhythm. Sinus arrhythmia characteristically presents with an irregular rate in which the variation in the R-R interval is more than 0.12 seconds (120 milliseconds). Additionally, P waves are typically mono-form and in a pattern consistent with atrial activation originating ...