The information on this website is not intended for diagnosis or treatment. Please consult your physician for health concerns.

+90 850 321 50 00

What Is an ECG (Electrocardiography)?

ECG is the rapid, non-invasive cardiology test recording the electrical activity of the heart.

Written by: Saygı Hospital Health Guide Editorial Board
Last updated:

This content has been compiled by the Saygı Hospital Health Guide Editorial Board and is periodically reviewed by a specialist physician.

This content is for informational purposes only and does not constitute medical advice. You can book an appointment at our Radyoloji department. Book Appointment →

What is What Is an ECG (Electrocardiography)??

Electrocardiography (ECG) is a rapid, non-invasive, painless test that records the electrical activity of the heart muscle through skin electrodes. A standard 12-lead ECG is completed in a few minutes.

It contributes critically to the diagnosis of heart attack, arrhythmia, electrolyte disturbance, drug toxicity, and various heart diseases. In the emergency department, every patient with chest pain should have an ECG within the first 10 minutes.

Symptoms

Chest pain and pressure
Palpitations and irregular pulse
Shortness of breath and fatigue
Dizziness and syncope
Hypertension and heart failure follow-up
Routine preoperative evaluation

Risk Factors

ECG has no known risk or side effects
Skin electrode allergy can rarely develop
A static ECG may miss intermittent arrhythmias (Holter may be needed)
A normal ECG does not exclude cardiac pathology in atypical presentations
Errors in electrode placement may produce false results
Artifacts may occur in patients with marked tremor and movement

When to See a Doctor?

If you experience any of the following symptoms, seek medical attention promptly:

  • For chest pain, go to the emergency department immediately for an emergency ECG
  • For palpitations and syncope, get a same-day cardiology consultation
  • An annual ECG at routine check-ups is recommended for individuals over 40
  • An ECG may be required for QT-interval monitoring when starting drug therapy

Treatment Methods

01
ECG is a diagnostic tool; treatment is planned by the cardiologist based on findings
02
If STEMI is found, emergency reperfusion therapy (PCI or thrombolytics) is started
03
If arrhythmia is detected, antiarrhythmic medication, cardioversion, or ablation is considered
04
Holter (24-48 hour ECG) is used to detect intermittent arrhythmias
05
Further investigation is needed if symptoms persist despite a normal ECG

Which Department to Visit?

You can visit our Radyoloji department for these complaints. Our specialist physicians will create the most suitable treatment plan for you.

Learn About Radyoloji Department

Let us help you

You can make an appointment with our specialists or contact us for your concerns.

Book AppointmentContact Us

Related Health Topics

Other articles from the same department you may want to explore.

What Is MRI (Magnetic Resonance Imaging)?

Radyoloji

MRI uses a magnetic field and radio waves and is the gold standard for imaging the brain, spine, joints, and internal organs.

What Is CT (Computed Tomography)?

Radyoloji

Computed tomography provides rapid, detailed cross-sectional images in emergency, trauma, and oncology cases.

What Is Ultrasound (Ultrasonography)?

Radyoloji

Ultrasonography is radiation-free and is widely used in pregnancy follow-up and the evaluation of abdominal organs and superficial tissues.

What Is an X-ray (Plain Radiograph)?

Radyoloji

X-ray is the oldest and most widely used radiologic test, providing rapid diagnosis in bone and lung pathologies.

Mammography

Radyoloji

Mammography is specialized low-dose X-ray imaging of breast tissue that detects cancer, often before clinical palpation, and is the primary tool for breast cancer screening in women 40 and older per ACR/ESR guidelines.

Doppler Ultrasound

Radyoloji

Doppler USG is critical for evaluating deep vein thrombosis, carotid stenosis, and organ blood flow.

Angiography

Radyoloji

Angiography examines all vascular systems in the body in detail, especially the cardiac and cerebral vessels.

PET-CT (Positron Emission Tomography)

Radyoloji

PET-CT combines metabolic activity with anatomical imaging in cancer staging and treatment-response evaluation.

Health Disclaimer: The information on this page is prepared for general informational purposes only. It does not replace medical diagnosis and treatment. Please consult your physician for your complaints. Saygı Hospital does not accept responsibility for actions taken based on the information on this page.