What is ventricular tachycardia?

Ventricular tachycardia is a type of abnormal heart rhythm that starts in the lower chambers of the heart. It causes the heart to beat faster than normal, which can limit how well blood circulates through the body. Some episodes are brief, while others can become serious and require immediate care.

Symptoms and Causes

Ventricular tachycardia affects how your heart pumps blood.

Common symptoms include:

• A rapid or pounding heartbeat
• Feeling dizzy or lightheaded
• Shortness of breath
• Chest discomfort
• Fainting or near fainting

In severe cases, it can lead to cardiac arrest. Some people may not notice any symptoms at all.

This condition is often linked to changes in the heart muscle or its electrical system. Common causes and risk factors include:

• Damage from a previous heart attack
• Heart disease, including coronary artery disease
• Cardiomyopathy or heart failure
• Problems with heart valves
• Inherited heart rhythm conditions
• In some cases, it can occur in people with otherwise healthy hearts

How is it diagnosed?

To diagnose ventricular tachycardia, your provider will focus on recording your heart’s rhythm. An electrocardiogram (ECG) is usually the first step.

If episodes don’t happen regularly, you may wear a portable monitor at home to track your heart over time. In some cases, longer-term devices or hospital monitoring may be used to capture abnormal rhythms when they occur.

How is it treated?

Treatment depends on how often episodes happen, how long they last, and whether you have other heart conditions.

For mild or short-lasting episodes, close monitoring may be all that’s needed. When treatment is necessary, options may include:

• Medications to help control the heart’s rhythm
• Procedures to correct abnormal electrical signals
• An implantable device that can detect and correct dangerous rhythms

More advanced treatments are recommended if episodes are frequent, prolonged, or pose a risk to your safety. With the right care plan, many people are able to manage this condition effectively.