Medically reviewed by Prof. Dr. Waleed El-Guindy — Pediatric CardiologistQuick answer
An electrocardiogram (ECG) is a quick, painless test that records the heart's electrical activity within minutes. It helps diagnose rhythm disorders, chamber enlargement and other conditions. Children's ECGs differ from adults', so interpretation by a pediatric cardiologist matters.
When does a child need an ECG?
- Palpitations or fast or irregular heartbeat.
- Fainting or dizziness, especially with exercise.
- Chest pain.
- Before certain medications or competitive sports.
- Follow-up of congenital or acquired heart disease.
How is it done?
- Small stickers are placed on the chest, arms and legs.
- Recording takes less than a minute.
- It is painless — no electricity enters the body.
FAQs about Pediatric Electrocardiogram (ECG)
Does an ECG give my child an electric shock?
No. The machine only records the heart's own signals; nothing is sent into the body.
Is a standard ECG enough for palpitations?
Sometimes. If symptoms come and go, the doctor may request a Holter (24-hour ECG) to capture an episode.