What is Balloon Valvotomy (BMV/PTMC)?

Balloon Mitral Valvotomy (BMV/PTMC) is a minimally invasive heart procedure used to treat mitral valve narrowing (mitral stenosis). In this condition, one of the heart valves becomes stiff and narrow, making it difficult for blood to flow properly through the heart. During the procedure, doctors use a thin tube with a balloon at its tip to gently open the narrowed valve and improve blood flow.

Why is this Procedure Important?

• Improve breathing and reduce tiredness
• Relieve chest discomfort and palpitations
• Improve daily activities and quality of life
• Reduce pressure on the heart and lungs
• Prevent complications such as heart failure, stroke, or irregular heartbeat

In many patients, Balloon Valvotomy can delay or avoid the need for open-heart surgery.

Who is Commonly Affected?

Mitral valve narrowing is most commonly caused by rheumatic heart disease, which develops after untreated throat infections caused by certain bacteria. The condition is more common in:

• Young and middle-aged adults
• Women
• People from low- and middle-income countries
• Areas where rheumatic fever is still common, including parts of Asia and Africa

According to the WHO, rheumatic heart disease affects around 55 million people worldwide.

Understanding the Condition

The heart has four valves that help blood move in the correct direction. One of these is the mitral valve. In mitral stenosis, the valve becomes thick, stiff, and narrow. As a result, blood flow slows down, pressure builds up inside the heart and lungs, and the heart has to work harder. Over time, this may cause breathlessness, tiredness, swelling, and irregular heartbeat. In Balloon Valvotomy, a small balloon is inflated inside the narrowed valve to widen the opening and improve blood flow.

Why it Happens

The most common cause is rheumatic fever, which can happen after an untreated throat infection during childhood. Over time, the infection-related inflammation damages the heart valve. Other less common causes include aging-related calcium deposits, congenital heart problems, or previous radiation treatment to the chest.

Risk Factors

• Repeated untreated sore throats
• Poor access to healthcare
• Overcrowded living conditions
• Previous history of rheumatic fever

Signs and Symptoms

• Shortness of breath, especially during activity
• Tiredness and weakness
• Fast or irregular heartbeat
• Swelling in feet or ankles
• Chest discomfort
• Reduced ability to exercise

Diagnosis and Investigations

• Echocardiogram (Heart Ultrasound)
• Electrocardiogram (ECG)
• Chest X-ray
• Blood Tests
• Cardiac Catheterization (in selected patients)

Treatment Options

Lifestyle and Medical Treatment

• Low-salt diet
• Regular follow-up visits
• Medicines to reduce fluid buildup
• Medicines to control heart rate
• Blood thinners in some patients

Medicines help control symptoms but cannot open the narrowed valve.

When is Balloon Valvotomy Needed?

• Symptoms become moderate or severe
• The valve is suitable for balloon treatment
• Blood flow is significantly reduced

Procedure Details

Before the Procedure

• Avoid eating or drinking for several hours before the procedure
• Inform doctors about all medicines being taken
• Stop certain blood-thinning medicines temporarily if advised
• Undergo blood tests and heart imaging

What is Done During the Procedure

A doctor inserts a thin flexible tube (catheter) through a blood vessel, usually from the groin. A balloon attached to the catheter is guided to the narrowed mitral valve. The balloon is then gently inflated to widen the valve opening and improve blood flow.

Anaesthesia & Duration

• Usually performed under local anaesthesia
• General anaesthesia is rarely needed
• The procedure usually takes 1–2 hours

Benefits and Risks

Benefits and Expected Outcomes

In properly selected patients, Balloon Valvotomy has high success rates and can provide symptom relief for many years.

Possible Risks and Complications

• Bleeding or bruising at the insertion site
• Irregular heartbeat
• Valve leakage
• Blood clots or stroke
• Infection
• Rarely, emergency heart surgery

Recovery and Aftercare

Recovery Timeline

Most people recover within a few days and can return to light activities soon after discharge.

Activity Restrictions

• Avoid heavy lifting for a few days
• Keep the catheter site clean and dry
• Avoid strenuous exercise initially

Long-Term Care

• Regular follow-up visits and heart scans are important to monitor valve function
• Some patients may still require medicines after the procedure

Myths vs Facts

Frequently Asked Questions