As a medical professional with expertise in cardiology, I can tell you that an ECG, also known as an electrocardiogram, is a non-invasive test that records the electrical activity of the heart. It is used to diagnose various heart conditions, including:


1. Heart Attack (Myocardial Infarction): An ECG can show changes in the heart's electrical activity that indicate tissue damage due to a lack of oxygen, which is a common symptom of a heart attack.


2. Arrhythmias: These are irregular heartbeats, and an ECG can identify the type and severity of the arrhythmia.


3. Heart Block: This is a condition where the electrical impulses that coordinate heartbeats are delayed or blocked.


4. Hypertrophy: An ECG can show signs of an enlarged heart muscle, which is known as hypertrophy.


5. Ischemia: This refers to a reduced blood supply to the heart, which can be due to coronary artery disease.


6. Long QT Syndrome: A genetic condition that can cause a specific pattern on an ECG.

7.
Myocarditis: Inflammation of the heart muscle, which can be detected through changes in the ECG.

8.
Pericarditis: Inflammation of the tissue surrounding the heart, which can also be indicated by an ECG.

9.
Valvular Heart Disease: Abnormalities in the heart's valves can sometimes be inferred from an ECG.

10.
Conduction Disorders: Problems with the electrical pathways in the heart can be identified through an ECG.

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An ECG (electrocardiogram) records the electrical activity of your heart at rest. It provides information about your heart rate and rhythm, and shows if there is enlargement of the heart due to high blood pressure (hypertension) or evidence of a previous heart attack (myocardial infarction).read more >>