“…In this issue of the Revista Brasileira de Cardiologia Invasiva, Queiroz et al 1 describe their experience in closing patent foramen ovale in 9 patients by using the BioSTAR TM prosthesis, that is an evolution of the STARflex TM . 2 Both devices have the identical metal frame, made of MP35N, while the BioSTAR TM incorporates bioresorbable collagen over the wire frame.…”