Rest electrocardiogram (ECG)

Resting Electrocardiogram (ECG) is one of the most important non-invasive cardiac tests, enabling a quick and accurate assessment of the heart's electrical activity. The test records the electrical impulses generated by the heart muscle, helping to evaluate heart rhythm, conduction, ischemic changes, and other potential abnormalities. This ECG test, also known as a cardiogram, is particularly suitable for patients who wish to assess their heart function preventively or who are experiencing certain symptoms. It is also performed before planned surgical procedures or when adjusting a treatment regimen. According to the clinical standards established by the European Society of Cardiology, electrocardiography remains one of the primary first-line diagnostic tests when acute or chronic heart disease is suspected. This service includes only the ECG recording, without a physician's review or interpretation. It is particularly relevant for patients who have already received a specialist assessment or plan to have the results analyzed at another healthcare facility.

When is it advisable to undergo a resting electrocardiogram?

A resting ECG is most commonly performed when:

• chest pressure or discomfort is experienced;
• an irregular, slowed, or accelerated heartbeat is noticed;
• shortness of breath occurs during physical activity or at rest;
• dizziness or fainting episodes occur;
• heart rhythm or conduction disorders are suspected.

The test is also recommended for patients with cardiovascular diseases to monitor disease progression or before initiating a new treatment. In clinical practice, it is not uncommon for patients to have no symptoms at all while an ECG reveals early changes. This enables timely detection of disease and prompt initiation of treatment.

How is an ECG performed, and what do the results show?

The procedure takes only a few minutes. Once the patient is lying down, ECG electrodes are attached to the chest, wrists, and ankles to record the heart's electrical activity. The resulting recording, known as a cardiogram, allows the physician to assess:

• whether heart rhythm or conduction disorders are present (e.g., atrial fibrillation);
• whether there are signs suggesting possible myocardial damage;
• whether other clinically significant abnormalities in heart function are detected.

If intermittent or nighttime heart rhythm disturbances are suspected, the physician may recommend Holter monitoring, an extended 24-hour cardiac monitoring test.

When is an additional consultation with a cardiologist recommended?

It is advisable to consult a cardiologist if you:

• experience chest pain or pressure;
• frequently feel physical fatigue or shortness of breath;
• notice an irregular heartbeat;
• have high blood pressure or a diagnosed heart condition;
• would like to assess your heart health as a preventive measure.

An electrocardiogram is an objective diagnostic test that helps evaluate heart function and, when necessary, guides the need for additional investigations or treatment.