Category: Electrocardiography

Introduction Electrocardiography (ECG or EKG) is an essential tool in cardiology, providing a non-invasive, rapid assessment of the heart’s electrical activity. While ECG abnormalities often dominate clinical discussions, understanding what constitutes a normal ECG is equally crucial. Accurate knowledge of normal parameters enables clinicians to identify subtle deviations, avoid misdiagnoses, and provide reassurance when findings…

Introduction Electrocardiography (ECG or EKG) is one of the most essential diagnostic tools in modern medicine. It provides a non-invasive method to evaluate the electrical activity of the heart, helping clinicians detect arrhythmias, conduction abnormalities, myocardial ischemia, infarction, and structural heart disease. An accurate understanding of ECG leads—including limb leads, augmented leads, and chest (precordial)…

Introduction The electrocardiogram (ECG or EKG) is one of the most essential diagnostic tools in modern medicine, providing a non-invasive, real-time window into the electrical activity of the heart. Since its invention by Willem Einthoven in the early 20th century, ECG has remained invaluable in diagnosing arrhythmias, conduction abnormalities, myocardial ischemia, electrolyte disturbances, and structural…

Introduction Electrocardiography (ECG or EKG) is one of the most fundamental diagnostic tools in cardiology, offering a window into the heart’s electrical activity. Through a simple, non-invasive procedure, clinicians can detect arrhythmias, ischemia, conduction abnormalities, structural heart disease, and even systemic conditions that impact cardiac function. Despite its apparent simplicity, the ECG is a highly…