Midterm follow‐up results of transcatheter treatment in patients with unroofed coronary sinus

Objective : We present the midterm results of transcatheter treatment of unroofed coronary sinus (CS) using the Amplatzer septal occluder. Background : The unroofed CS is a rare atrial septal defect communicating the left atrium and CS. Surgery has been the mainstay of treatment. Methods : In a 4.5‐year period, nine patients (five males) with ages ranging from 26 to 69 years (median 39 years) diagnosed with an unroofed CS but without a...