1 Division of Cardiac Anesthesiology, Department of Critical Care, Anesthesia, and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA. Electronic address: pochieng@partners.org.
2 Division of Cardiac Anesthesiology, Department of Critical Care, Anesthesia, and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA. Electronic address: aadalia@mgh.harvard.edu.
3 Division of Cardiothoracic and Vascular Anesthesia, Department of Anesthesiology, Ohio State University Wexner Medical Center, Columbus, OH.