title: Invited commentary.
authors.affiliation: Division of Cardiovascular Surgery, The Hospital for Sick Children, 555 University Ave, Ste 1525, Toronto, ON M5G 1X8, Canada. glen.vanarsdell@sickkids.ca.
authors.forename: Glen
authors.initials: G
authors.lastname: Van Arsdell
authors.forename: Shi-Joon
authors.initials: SJ
authors.lastname: Yoo
mesh_terms: D006343:Heart Septal Defects / Q000601:surgery*; D006801:Humans; D008944:Mitral Valve Insufficiency / Q000000981:diagnostic imaging* / Q000517:prevention & control*; D010210:Papillary Muscles; D011183:Postoperative Complications / Q000000981:diagnostic imaging* / Q000517:prevention & control*; D014463:Ultrasonography
keywords: 21