Early Biological Reaction to a Synthetic Hybrid Patch Inducing Tissue Ingrowth as a Senning Atrial Baffle

We report a case in which a new synthetic hybrid patch inducing autologous tissue ingrowth was used to replace the obstructed Senning atrial baffle in a double switch operation for congenitally corrected transposition of the great arteries. However, recurrent baffle obstruction developed after 10 months postoperatively and was removed. Histology of the excised specimen showed promising tissue ingrowth but cautionary peripheral folding of the patch in this clinically challenging condition.