Category: Cardiology

ECG showing Sinus bradycardia with first degree AV block.

ECG showing Ventricular ectopic beats.

Ventricular ectopic beats are recognized as wide bizarre QRS complexes which occur prematurely and are not usually preceded by a P wave.

Ventricular fibrillation is recognized on the electrocardiographic monitor as a highly disorganized rhythm with no definite P waves or QRS complexes.

Three or more ventricular complexes (wide QRS) occurring at a rate more than 100 per minute is taken as ventricular tachycardia (VT).

Accelerated idioventricular rhythm (AIVR) is a classical reperfusion arrhythmia which occurs during thrombolysis of acute myocardial infarction.

Three or more different morphologies of P waves, with a rate more than 100 per minute defines multifocal atrial tachycardia (MAT) or chaotic atrial rhythm.

Atrial fibrillation is the most common sustained arrhythmia and the incidence increases as the age advances.

Atrial flutter is usually associated with a fixed ratio AV block. If there is 1:1 conduction, the ventricular rates will be very high.

Supraventricular tachycardia (SVT) is identified as a narrow QRS tachycardia, often with barely discernible P waves.