Commentary: Is this a case in which we know what we don't know what we don't know?Central Message

• Alex Nantsios, MD,
• Fraser D. Rubens, MD, MSc, FACS, FRCSC

Affiliations

Alex Nantsios, MD

Division of Cardiac Surgery, University of Ottawa Heart Institute, Ottawa, Ontario, Canada

Fraser D. Rubens, MD, MSc, FACS, FRCSC

Address for reprints: Fraser D. Rubens, MD, MSc, FACS, FRCSC, University of Ottawa Heart Institute, H-3403, 40 Ruskin St, Ottawa, Ontario K1Y 4W7, Canada.; Division of Cardiac Surgery, University of Ottawa Heart Institute, Ottawa, Ontario, Canada