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Figure 2: (a and b) TEE images of case 1 at 0° and 45° showing large FOASD with deficient retroaortic rim. (c) Plain fluoroscopy image in AP view showing 10-Fr flexor sheath (Cook Medical, Bloomington, MN, US) positioned in the LUPV with 20-mm Amplatzer septal occluder (Abbott medical MN, US). (d) Fluoroscopy image in anteroposterior view showing deployed Amplatzer septal occluder. TEE - Transesophageal echocardiography, FOASD - Fossa ovalis atrial septal defect, LUPV - Left upper pulmonary vein, RA - Right atrium, LA - Left atrium, AP - Anterio-posterior view

Figure 2: (a and b) TEE images of case 1 at 0° and 45° showing large FOASD with deficient retroaortic rim. (c) Plain fluoroscopy image in AP view showing 10-Fr flexor sheath (Cook Medical, Bloomington, MN, US) positioned in the LUPV with 20-mm Amplatzer septal occluder (Abbott medical MN, US). (d) Fluoroscopy image in anteroposterior view showing deployed Amplatzer septal occluder. TEE - Transesophageal echocardiography, FOASD - Fossa ovalis atrial septal defect, LUPV - Left upper pulmonary vein, RA - Right atrium, LA - Left atrium, AP - Anterio-posterior view