Artifact Simulating Ventricular and Atrial Arrhythmia.

Effect of gallic acid on electrophysiological properties and ventricular arrhythmia following chemical-induced arrhythmia in rat

Objective(s): Ventricular arrhythmias including ventricular tachycardia (VT) and ventricular fibrillation (VF) are the most important causes of mortality rate. Gallic acid (GA) has beneficial effects on cardiovascular diseases. The aim of this study was to evaluate the effects of GA on electrophysiological parameters such as QRS complex, heart rate (HR), PR interval pa...

The Risk of Isolated Atrial or Ventricular Arrhythmia

It is well known that irregular heartbeats are not infrequently detected on a routine physical examination, and for years conflicting conclusions have been drawn regarding the significance of such irregularities. This is particularly true when sporadic ventricular or supraventricular premature beats (VPB’s or SVPB’s) are recorded on a routine electrocardiogram, without any evidence, or even sus...

Electrocardiographic artifact caused by pacemaker pulse-width controller. Simulation of ventricular arrhythmia.

Arrhythmia Diagnosis Using Morphology and Timing from Atrial and Ventricular Leads

Reliable computer arrhythmia diagnosis is mostly restricted to ventricular arrhythmias because information about atrial activation cannot be reliably obtained from surface lead electrocardiograms (ECGs) [1,2,3]. A two channel computer arrhythmia detection system has been designed and successfully tested on a data base of a simultaneous esophageal electrograms and surface lead ECGs. The system h...

Increased Risk of Atrial and Ventricular Arrhythmia in Long-Lasting Psoriasis Patients

BACKGROUND Several reports have demonstrated an association between psoriasis and cardiovascular diseases. P wave dispersion (PWD) is the most important electrocardiographic (ECG) markers used to evaluate the risk of atrial arrhythmias. QT dispersion (QTD) can be used to assess homogeneity of cardiac repolarization and may be a risk for ventricular arrhythmias. AIM To search PWD and QTD in pa...