Heart Clinic

The heart beats more than 100 times per minute.
Symptoms can include palpitations, shortness of breath,
chest pain, and dizziness.

The heart beats fewer than 60 times per minute.
This can cause dizziness or sudden fainting.

The most common arrhythmia that always requires treatment —
and the most common cause of an irregular heartbeat — is atrial fibrillation.
When the atria can't contract properly, they quiver instead, and the pulse becomes
irregular. In Korea, atrial fibrillation accounts for more than half of the roughly
440,000 diagnosed arrhythmia cases, and that number is rising quickly as the population ages.