Many people ignore symptoms such as shortness of breath while walking, chest discomfort after minor physical activity, or unusual tiredness, assuming they are caused by gas, weakness, stress, or age. However, these symptoms can sometimes indicate reduced blood flow to the heart due to a blockage in the coronary arteries.

If symptoms repeatedly appear while walking, climbing stairs, or doing other physical activity and improve after resting, they should not be ignored. In some cases, coronary artery disease can increase the risk of a heart attack.

Why can a blockage in the left main coronary artery be dangerous?

The heart requires a continuous supply of oxygen-rich blood. Cholesterol and other substances can accumulate inside the coronary arteries, narrowing them and restricting blood flow to the heart muscle.

The left main coronary artery is particularly important because it supplies blood to a large portion of the heart through its major branches. A significant blockage in this artery can therefore be a serious condition requiring prompt medical evaluation.

The appropriate treatment depends on the location and severity of the blockage and the overall condition of the patient's coronary arteries. Depending on the circumstances, doctors may recommend medicines, angioplasty, or bypass surgery.

Shortness of breath can also be a warning sign

Heart-related problems do not always cause severe or typical chest pain. Some people may primarily experience breathlessness, unusual fatigue, or a feeling of pressure or heaviness in the chest.

Important symptoms to watch for include:

• Shortness of breath while walking or climbing stairs
• Chest pain, pressure, or heaviness during physical activity
• Unusual tiredness after relatively little exertion
• Pain spreading to the arm, shoulder, back, neck, or jaw
• Symptoms that improve after stopping the activity and resting

If these symptoms keep occurring, it is important to consult a doctor rather than automatically attributing them to acidity, gas, or general weakness.

Does every blockage require bypass surgery?

No. The treatment depends on the individual patient's condition.

Doctors may use tests such as an ECG, stress testing, echocardiography, CT coronary angiography, or invasive coronary angiography to assess the heart and blood vessels. The decision between medicines, angioplasty, and bypass surgery depends on factors such as the location and severity of the blockage, the number of arteries affected, and the patient's overall health.

Therefore, treatment should not be chosen by comparing one patient's case with another's.

Who is at greater risk of coronary artery blockage?

Several factors can increase the risk of coronary artery disease, including:

• High blood pressure
• Diabetes
• High cholesterol
• Smoking
• Obesity
• Physical inactivity
• Unhealthy diet
• Family history of heart disease
• Increasing age

Regular monitoring of blood pressure, blood sugar, and cholesterol can help identify cardiovascular risk early.

What can help reduce the risk?

A heart-healthy lifestyle can lower cardiovascular risk. This includes avoiding tobacco, maintaining a healthy weight, staying physically active as advised by a doctor, and limiting excessive salt, trans fats, and highly processed foods.

Most importantly, recurrent chest discomfort or breathlessness during exertion should not be casually dismissed. If chest pain is severe, occurs at rest, lasts several minutes, or is accompanied by sweating, nausea, fainting, or significant breathing difficulty, emergency medical attention should be sought immediately.