Arrhythmia may not cause any noticeable symptoms, and could be diagnosed during routine examinations.
Some of the commonly noted symptoms include:
• Fluttering in the chest
• Racing heartbeat
• Slow heartbeat
• Chest pain
• Shortness of breath
• Fainting or syncope
Arrhythmia results from abnormal electrical impulses that are involved in coordinating the heartbeats.
This makes the heart beat too fast or too slow, or beat irregularly.
Some of the causes that lead to arrhythmia include:
• An ongoing heart attack
• Damaged heart tissue from a previous heart attack
• Structural changes in the heart due to other conditions of the heart such as cardiomyopathy
• Heart abnormality at birth
• Blocked arteries in the heart (coronary artery disease)
• Previous heart surgery
• High blood pressure
• Overactive or underactive thyroid gland
Courtesy: Mayo Clinic