scholarly journals Induction of ventricular fibrillation versus monomorphic ventricular tachycardia during programmed stimulation. Role of premature beat conduction delay.

Circulation ◽  
1992 ◽  
Vol 85 (4) ◽  
pp. 1271-1278 ◽  
Author(s):  
B Avitall ◽  
J McKinnie ◽  
M Jazayeri ◽  
M Akhtar ◽  
A J Anderson ◽  
...  
Keyword(s):  
Ventricular Tachycardia ◽  
Ventricular Fibrillation ◽  
Conduction Delay ◽  
Programmed Stimulation ◽  
Monomorphic Ventricular Tachycardia

Purkinje involvement in arrhythmias after coronary artery reperfusion

2002 ◽  
Vol 282 (4) ◽  
pp. H1189-H1196 ◽  
Author(s):  
David O. Arnar ◽  
James B. Martins
Keyword(s):  
Ventricular Tachycardia ◽  
Coronary Artery ◽  
Ventricular Fibrillation ◽  
Cycle Length ◽  
Ischemic Myocardium ◽  
Risk Zone ◽  
Purkinje System ◽  
Mean Cycle

Previous studies have indicated that the endocardium may be responsible for a large portion of ventricular tachycardia (VT) seen with reperfusion of ischemic myocardium. To evaluate the role of the Purkinje system in nonreentrant VT arising from the endocardium after reperfusion, the anterior descending coronary artery was occluded for 20 min and then reperfused in 23 dogs after instrumentation of the risk zone with 21 multipolar plunge needles. VT with focal Purkinje origin was defined as a focal endocardial VT with Purkinje potentials recorded before the earliest endocardial myopotential. A total of 19 VTs (mean cycle length 214 ± 2 ms) were observed with 11 (58%) having focal Purkinje origin. Fifty-eight percent of the VTs degenerated to ventricular fibrillation, with occurrences of two or more independent foci per complex (seen in 7 of 11 compared with 1 of 8 nonsustained VTs). In conclusion, these data show that Purkinje tissue may be important in the genesis of reperfusion VT.

scholarly journals Prognosis of patients with ventricular tachycardia and ventricular fibrillation: Role of the underlying etiology

1988 ◽  
Vol 12 (1) ◽  
pp. 166-174 ◽  
Author(s):  
Hans-Joachim Trappe ◽  
Pedro Brugada ◽  
Mario Talajic ◽  
Paolo Della Bella ◽  
Roman Lezaun ◽  
...  
Keyword(s):  
Ventricular Tachycardia ◽  
Ventricular Fibrillation
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