Related Experiment Videos
Chronic rise in monophasic defibrillation thresholds with a transvenous lead system
M M Kirk1, S R Shorofsky, K Khalighi
1Department of Medicine, University of Maryland Medical System, Baltimore, USA.
The American Journal of Cardiology
|February 15, 1997
Abstract:
This study was a prospective evaluation of chronic changes of defibrillation thresholds in 31 clinically stable patients with a single transvenous lead, optimal shock polarity, and uniform testing protocol. At a mean follow-up of 273 +/- 146 days, defibrillation thresholds increased 26%, from 13.2 +/- 5.6 J to 17.1 +/- 6:0 J (p < 0.001), and shock impedance increased from 46.2 +/- 7.0 omega to 51.2 +/- 6.2 omega (p < 0.001).