Why the study?
Does radiofrequency delivery through a cooled catheter tip increase lesion volume and prevent impedance rise in an ovine model?
Population
8 open chest, anesthetized sheep
Comparison
Radiofrequency delivery through a catheter tip… vs Radiofrequency delivery through a noncooled…
Design
Preclinical, Alternated assignment of cooled versus noncooled RF delivery to…
Authors
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Supports larger lesions with cooled RF in animal models; leaves open translation to human ablation.
Does radiofrequency delivery through a cooled catheter tip increase lesion volume and prevent impedance rise in an ovine model?
Cooling the catheter tip during radiofrequency ablation allows for the creation of significantly larger endomyocardial lesions by preventing impedance rise and enabling greater energy delivery.
Ruffy et al. (1995) studied this question.
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