…Study Figure 7 carefully, as it illustrates how the P wave and QRS complex are generated by the electrical vectors. Note that the first vector…

ECG Video lecture: The QRS complex: Q wave, R wave & S wave

Arrhythmias and arrhythmology ECG Premature atrial contraction (premature atrial beat / complex) A premature atrial contraction is produced by an impulse discharged from an ectopic focus…

Arrhythmias and arrhythmology ECG Premature ventricular contractions (premature ventricular complex, premature ventricular beats): ECG and clinical implications Premature ventricular complexes are also referred to as…

Arrhythmias and arrhythmology ECG Diagnosis and management of narrow and wide complex tachycardia All clinically significant supraventricular and ventricular tachyarrhythmias have been reviewed in previous…

…depolarization (activation). The PR interval is the distance between the onset of the P wave to the onset of the QRS complex. The PR interval…

ECG Troponin is a protein complex expressed in cardiac and skeletal muscle. The complex consists of troponin I (TnI) , troponin C (TnC) and troponin T…

Cardiology Introduction Ventricular tachycardia (VT) represents a complex and potentially lethal spectrum of cardiac arrhythmias that remains a formidable challenge in contemporary cardiovascular medicine. As…

[calc_syntax] SYNTAX Score: A Tool for Revascularization Strategy in Complex Coronary Artery Disease The SYNTAX Score is a semi quantitative scoring system designed to…

Cardiology Definition and terminology Heart failure (HF) is a complex clinical syndrome characterized by symptoms and signs resulting from structural or functional impairment of ventricular…