Electrocardiogram (ECG)

Electrocardiogram (ECG) is a simple, quick, and painless test that records the electrical activity of the heart. It provides the physician with important information about heart function and helps detect various rhythm or conduction disorders.

When an ECG is recommended

• in case of chest pain, palpitations, dizziness, or shortness of breath;
• as part of preventive check-ups, especially after the age of 40;
• for monitoring patients with cardiovascular diseases;
• before surgical procedures or significant medical treatments.

How the test is performed

• The patient lies comfortably on an examination table.
• Electrodes are placed on the chest, arms, and legs.
• The device records the heart’s electrical activity and displays the ECG tracing on paper or in digital form.

The procedure takes only a few minutes and requires no special preparation. It is completely painless and safe, including for children and elderly patients.

What information an ECG provides

• identification of heart rhythm disorders (arrhythmias);
• detection of signs of ischemia or myocardial infarction;
• assessment of the size and function of certain heart chambers;
• monitoring the effects of cardiological treatments.

An electrocardiogram is often the first step in cardiac evaluation and can guide the physician in deciding whether further investigations, such as an exercise stress test or Holter monitoring, are necessary.