Key result
Temperature-guided radiofrequency ablation in a beating porcine heart showed a positive correlation between lesion size and peak temperature in bipolar mode (r=0.48-0.56, P<0.05).
Why the study?
Does temperature-guided radiofrequency ablation produce predictable lesion sizes in an open-chest pig model?
Population
19 pigs in an open-chest animal model
Design
Preclinical
Authors
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May support temperature guidance in bipolar RF ablation; leaves open predictability in unipolar clinical use.
Does temperature-guided radiofrequency ablation produce predictable lesion sizes in an open-chest pig model?
Effect estimate: correlation coefficient 0.48 and 0.56
p-value: p=<0.05
In a beating heart pig model, it is difficult to predict RF ablation lesion size from temperature or energy, particularly in unipolar configuration.
Kongsgaard et al. (1993) studied Ventricular myocardium ablation (n=19). Temperature-guided radiofrequency ablation was evaluated on Correlation between lesion area/volume and peak temperature (correlation coefficient 0.48 and 0.56, p=<0.05). Temperature-guided radiofrequency ablation in a beating porcine heart showed a positive correlation between lesion size and peak temperature in bipolar mode (r=0.48-0.56, P<0.05).
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