Autocorrelation and Crosscorrelation of Electrocardiographic Record during Ventricular Fibrillation

Autocorrelation of electrocardiographic activity during ventricular fibrillation.

Autocorrelation is a method of mathematical analysis which detects and extracts any periodic components present in a record which, on inspection, may show an apparently irregular type of activity. The theory and some of the applications of the method have been reviewed by Wiener. Basically, it is a method of harmonic analysis with major emphasis on information about fundamental period. Such a p...

Autocorrelation of Electrocardiographs Activity during Ventricular Fibrillation

Autocorrelation is a method of mathematical analysis which detects and extracts any periodic components present in a record which, on inspection, may show an apparently irregular type of activity. The theory and some of the applications of the method have been reviewed by Wiener. Basically, it is a method of harmonic analysis with major emphasis on information about fundamental period. Such a p...

Electrocardiographic evidence of ventricular repolarization remodelling during atrial fibrillation.

AIMS Some atrial fibrillation (AF) patients develop excessive QTc prolongation and torsade de pointes when they take QTc-prolonging antiarrhythmic drugs (class IA/III) immediately after termination of AF. We hypothesized that this is caused by changes in ventricular repolarization during AF. We aimed to establish whether such 'ventricular repolarization remodelling' occurs. METHODS AND RESULT...

Electrocardiographic Patterns during Resuscitation after Experimentally Induced Ventricular Fibrillation.

• A variety of resuscitative measures are being employed currently both in experimental studies and in clinical episodes of cardiac arrest." While survival is certainly the best means of determining the efficacy of these resuscitative procedures, it would be valuable to be able to differentiate between those marginal techniques which are successful occasionally and others which might be respons...

Electrocardiographic antecedent of primary ventricular fibrillation.