EPU Electrophysiology Practice Exam

Protecting the esophagus during ablation hinges on both detecting heating and physically reducing exposure. Esophageal temperature monitoring gives real-time feedback so energy delivery can be adjusted if the temperature starts to rise, helping to prevent injury. But heat transfer can occur rapidly and sometimes without a dramatic temperature shift, so monitoring alone isn’t always enough. Mechanical deviation moves the esophagus away from the ablation area, decreasing its direct exposure to the energy being applied. When used together, these approaches address both potential heat delivery and actual tissue exposure, providing the strongest protection against esophageal injury. Esophageal cooling is another strategy some centers use as an adjunct, but combining monitoring with deviation offers the most consistent mitigation.