Key result
A cooled intraesophageal balloon effectively protects the esophageal lumen during RF ablation, but temperatures reached 2 mm away may still risk injury to inner esophageal layers.
Why the study?
Does a cooled intraesophageal balloon prevent thermal injury during RF cardiac ablation in an agar phantom model?
Population
Agar phantom-based model simulating the esophagus and myocardium
Design
Preclinical
Authors
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Cooled balloons may leave deeper esophageal layers vulnerable during RF ablation; leaves open need for human safety studies.
Does a cooled intraesophageal balloon prevent thermal injury during RF cardiac ablation in an agar phantom model?
While a cooled intraesophageal balloon protects the esophageal lumen during RF ablation, deeper tissue layers may still be at risk of thermal injury.
Lequerica et al. (2008) studied Thermal injury during RF cardiac ablation. Cooled intraesophageal balloon was evaluated on Temperature on the cooled balloon (T(b)) and at a hypothetical point 2 mm away (T(2-mm)). A cooled intraesophageal balloon effectively protects the esophageal lumen during RF ablation, but temperatures reached 2 mm away may still risk injury to inner esophageal layers.
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