What Are Premature Ventricular Contractions?

Premature ventricular contractions are extra heartbeats that start in the ventricles, which are the heart's two lower chambers. Premature ventricular contractions often are not problematic, but sometimes they indicate a condition that needs treatment.

Symptoms

• Most premature ventricular contractions do not cause symptoms. When they are noticed, it may feel like a skipped heartbeat, or a sensation of fluttering, flip-flopping or jumping. Some people experience a rapid or pounding heartbeat.

Significance

• Premature ventricular contractions are very common and occur in most people occasionally. If frequent, however, it may indicate an underlying heart condition. Frequent premature ventricular contractions also can lead to ongoing arrhythmia.

Risk Factors

• Risk factors for premature ventricular contractions include high blood pressure, anxiety, fatigue and use of caffeine, alcohol, certain drugs or tobacco.

Underlying Conditions

• Heart disease, damage or infections can cause premature ventricular contractions, and so can thyroid disorders.

Treatment

• Treatment for premature ventricular contractions usually involves taking a beta blocker or anti-arrhythmia medication.