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Electrocardiography (ECG) Interpretation

The fundamental diagnostic tool that records the heart's electrical activity to detect arrhythmia and ischemia.

Written by: Saygı Hospital Health Guide Editorial Board
Published:

This content is for general information; please consult your physician for diagnosis and treatment.

References (5)

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

What is Electrocardiography (ECG) Interpretation?

Electrocardiography (ECG) is a painless and rapid diagnostic method that records the formation and conduction of cardiac electrical impulses through electrodes placed on the body surface. The standard 12-lead ECG is the cornerstone of cardiologic assessment.

The ECG consists of characteristic waveforms including the P wave (atrial depolarization), QRS complex (ventricular depolarization) and T wave (ventricular repolarization). Changes in the morphology, duration and voltage of these waveforms are used to diagnose a wide range of cardiac diseases.

Arrhythmias, myocardial ischemia and infarction, conduction defects, electrolyte imbalance, pericardial disease and structural heart disease all have characteristic ECG findings.

Ambulatory ECG (Holter monitoring) provides 24–72 hours of continuous recording, while event recorders allow intermittent long-term monitoring.

Symptoms

The ECG is a diagnostic tool; indications include palpitations
Assessment of chest pain and dyspnea
Evaluation of syncope
Sensation of irregular heartbeat
Preoperative cardiac assessment
Monitoring of electrolyte imbalance and drug effects

Risk Factors

The ECG itself has no risk factors
Interpretation errors can lead to misdiagnosis
Artifacts (muscle tremor, poor electrode contact) can complicate reading
A normal ECG does not exclude cardiac pathology

When to See a Doctor?

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

  • Chest pain, palpitations or syncope
  • Sensation of an irregular pulse
  • Routine follow-up in known cardiac disease
  • Preoperative evaluation and health screening

Treatment Methods

01
The ECG is a diagnostic method; treatment targets the detected pathology
02
Antiarrhythmic or ablation therapy for arrhythmia
03
Coronary evaluation and treatment for ischemia
04
Pacemaker evaluation for conduction disease
05
Monitoring treatment response with serial ECGs

Which Department to Visit?

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

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Let us help you

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

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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.