scholarly journals The effect of pinacidil on postshock activation and ventricular defibrillation threshold in canine hearts

2012 ◽  
Vol 33 (12) ◽  
pp. 1488-1494
Author(s):  
Qi Jin ◽  
Ning Zhang ◽  
Jian Zhou ◽  
Chang-jian Lin ◽  
Yang Pang ◽  
...  
Keyword(s):  
Defibrillation Threshold ◽  
Ventricular Defibrillation

scholarly journals Mechanism of the probabilistic nature of ventricular defibrillation threshold

1998 ◽  
Vol 31 ◽  
pp. 334 ◽  
Author(s):  
M. Yashima ◽  
S. Armin ◽  
Y.-H. Kim ◽  
T.-J. Wu ◽  
J.-M. Cao ◽  
...  
Keyword(s):  
Defibrillation Threshold ◽  
Probabilistic Nature ◽  
Ventricular Defibrillation

Is the ventricular defibrillation threshold higher in patients with the Brugada syndrome?

Heart Rhythm ◽  
2005 ◽  
Vol 2 (5) ◽  
pp. S161
Author(s):  
Mar Gonzalez Vasserot ◽  
Mariana Gnoatto ◽  
José L. Merino ◽  
Ignacio Fernández ◽  
Arcadio García-Alberola ◽  
...  
Keyword(s):  
Brugada Syndrome ◽  
Defibrillation Threshold ◽  
Ventricular Defibrillation

Acute effects of intravenous propafenone on the internal ventricular defibrillation threshold in the anesthetized dog

1991 ◽  
Vol 122 (5) ◽  
pp. 1355-1360 ◽  
Author(s):  
Werner Peters ◽  
Eli S. Gang ◽  
Hidetaka Okazaki ◽  
Simon Solingen ◽  
Yoshinori Kobayashi ◽  
...  
Keyword(s):  
Defibrillation Threshold ◽  
Acute Effects ◽  
Ventricular Defibrillation

On the mechanism of the probabilistic nature of ventricular defibrillation threshold

2003 ◽  
Vol 284 (1) ◽  
pp. H249-H255 ◽  
Author(s):  
Masaaki Yashima ◽  
Young-Hoon Kim ◽  
Sean Armin ◽  
Tsu-Juey Wu ◽  
Yasushi Miyauchi ◽  
...  
Keyword(s):  
Action Potentials ◽  
Recovery Time ◽  
Cycle Length ◽  
Defibrillation Threshold ◽  
Bipolar Electrodes ◽  
Significant Difference ◽  
Endocardial Surface ◽  
Probabilistic Nature ◽  
Shock Outcome ◽  
Ventricular Defibrillation

The probabilistic nature of the ventricular defibrillation threshold (DFT) remains poorly understood. We hypothesized that shock outcome is a function of the amount of myocardium in its vulnerable period (VP). The endocardial surface of five isolated, perfused swine right ventricles was mapped with 477 bipolar electrodes during ventricular fibrillation (VF). Shock parameters and VF cycle length were not significantly different in the successful (S; n = 26) and failed (F; n= 26) trials. At the instant of the shock, the number of sites with 45- to 55-ms recovery was significantly smaller in the S trials than the F trials ( P < 0.04). No significant difference in the number of sites with recovery intervals outside the 45- to 55-ms range was seen in S and F shocks. Endocardial action potential showed that a recovery time of 45–55 ms corresponded to the VP spanning −15 to −60 mV in 92% of the regenerative action potentials. We conclude that the probabilistic nature of the DFT is related to the amount of myocardium in its VP.

scholarly journals Effect of shock polarity on ventricular defibrillation threshold using a transvenous lead system

1994 ◽  
Vol 24 (4) ◽  
pp. 1069-1072 ◽  
Author(s):  
S.Adam Strickberger ◽  
John D. Hummel ◽  
Laura E. Horwood ◽  
John Jentzer ◽  
Emile Daoud ◽  
...  
Keyword(s):  
Defibrillation Threshold ◽  
Lead System ◽  
Ventricular Defibrillation

Effects of Transient Myocardial Ischemia on the Ventricular Defibrillation Threshold

2005 ◽  
Vol 28 (2) ◽  
pp. 97-101 ◽  
Author(s):  
MARIA I. ANASTASIOU-NANA ◽  
ELEFTHERIA P. TSAGALOU ◽  
CHRISTOS CHARITOS ◽  
KOSTANTINOS X. SIAFAKAS ◽  
STAVROS DRAKOS ◽  
...  
Keyword(s):  
Myocardial Ischemia ◽  
Defibrillation Threshold ◽  
Transient Myocardial Ischemia ◽  
Ventricular Defibrillation
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