Figure legends:
Figure 1 . Catheter positions and ablation point of patient, esophageal catheter and its relation with atria is seen on fluoroscopic images.
Figure 2 . a) Ablation of left posteroseptal accessory pathway in ccTGA patient, reference esophageal catheter is red. Esophageal signals can be seen on the right side. b) Mapping with Advisor TM, HD grid mapping catheter on electro anatomical anatomy of right atria, arrow indicates signals received from posteriorly located esophageal catheter displayed green.
Figure 3 . Arrows pointing esophageal signals during mapping of atrial tachycardia.