Arrhythmia

Abnormality in the heart rate or rhythm is known as cardiac arrhythmia. The normal heart rate is between 60-100 beats per minute. Bradyarrhythmia is a heart rate less than 60 beats per minute. It causes fatigue, heart failure, dizziness, and syncope. A heart rate of more than 100 beats per minute min is called tachyarrhythmia. A heart rate of more than 100 beats per minute with exercise or fever is known as sinus tachycardia and not as tachyarrhythmia. The heart rhythm may become irregular in arrhythmia. Atrial fibrillation is the most common arrhythmia, and it is associated with aging. Atrial fibrillation increases the risk of stroke. Ventricular tachycardia and fibrillation are life-threatening conditions and required immediate hospitalization and treatment.