What is an ECG? Asystole Pulseless Electrical Activity 3° AV Block 2° AV Block Type II 2° AV Block Type I 1° AV Block Torsades de Pointes Ventricular Fibrillation Ventricular Tachycardia Premature Ventricular Contractions Wolff Parkinson White Multifocal Atrial Tachycardia Premature Atrial Contractions AV Nodal Reentry Tachycardia Atrial Flutter Atrial Fibrillation Normal Sinus Rhythms Sinus Arrhythmia
Premature Ventricular Contractions
PVCs are the most common ventricular arrhythmia. As with PACs, these are usually benign and not a predictor of future heart disease or problems.
They are spurred on by the same stimuli as PACs, for the most part. PVCs are usually only a problem in a patient with sustained PVCs (>6 in a row) or in a patient with significant heart disease.
They are caused by extra electrical impulses arising from one of the cardiac ventricles, usually the left ventricle.
Typical symptoms of PVCs are a feeling of palpitations or a skipped beat. Some will describe a sense of becoming aware of their heartbeat all of a sudden. They have been known to awake a patient from sleep, however this is usually not the case.
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