The Esophageal Electrophysiology Characteristics and Significance of Atrioventricular Nodal Reentrant Tachycardia:one Case Report and Reference Review

Multiple atrioventricular node pathways are usually seen in clinical practice.Its esophageal electrophysiology has the typical characteristics of tachycardia of multiple frequency.We found a case with trans-esophageal atrial pacing(TEAP) showed two types of tachycardia.Following the successful improvement of the slow bypass at the right extension,the other slow bypass did not found until 40 minutes later and it is ablated at left extension.It indicates that repeating intracardiac electrophysiology examination is critical for atrioventricular node multi-paths and extending the observing time may be necessary.The goal is to ablate all the bypasses with one operation.