University of California, Los Angeles
Impedance monitoring alone is insufficient during catheter ablation of atrial fibrillation
Published in Lab Law Weekly, November 18th, 2005
"Delivery of radiofrequency energy in proximity of a pulmonary vein can cause vein stenosis. A sudden decrease in impedance as the catheter is moved from the vein into the left atrium (LA) has been used to define the pulmonary vein-LA transition during ablation procedures.
"The purpose of this study was to define the variables affecting impedance measurement," wrote M. Vaseghi and colleagues, University of California, Los Angeles.
"In vitro analysis of impedance was performed in a saline bath using sheaths...
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Source: Lab Law Weekly (2005-11-18)
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