Cardiac arrhythmia is a condition that affects the heart's rhythm and can lead to serious health complications. There are several synonyms for cardiac arrhythmia, including heart rhythm disturbances, irregular heartbeat, cardiac dysrhythmia, and heart beat irregularity. Other related terms include palpitations, fluttering heart, skipped beats, and tachycardia. Symptoms of cardiac arrhythmia can vary depending on the severity of the condition and may include dizziness, shortness of breath, chest pain, and fainting. Early detection and treatment of cardiac arrhythmia are critical to prevent further health complications and improve overall quality of life.