title: Reply.
authors.affiliation: Department of Vascular Surgery, St. Antonius Hospital, Koekoekslaan 1, 3430 EM Nieuwegein, the Netherlands. Electronic address: reinoutboezeman@gmail.com.
authors.forename: Reinout P E
authors.initials: RP
authors.lastname: Boezeman
authors.affiliation: Department of Anesthesiology and Intensive Care, St. Antonius Hospital, Nieuwegein, the Netherlands.
authors.forename: Eric P
authors.initials: EP
authors.lastname: van Dongen
authors.affiliation: Department of Cardiothoracic Surgery, St. Antonius Hospital, Nieuwegein, the Netherlands.
authors.forename: Wim J
authors.initials: WJ
authors.lastname: Morshuis
authors.affiliation: Department of Cardiothoracic Surgery, St. Antonius Hospital, Nieuwegein, the Netherlands.
authors.forename: Uday
authors.initials: U
authors.lastname: Sonker
authors.affiliation: Department of Clinical Neurophysiology, St. Antonius Hospital, Nieuwegein, the Netherlands.
authors.forename: Eduard H J F
authors.initials: EH
authors.lastname: Boezeman
authors.affiliation: Department of Perfusion, St. Antonius Hospital, Nieuwegein, the Netherlands.
authors.forename: Frans G J
authors.initials: FG
authors.lastname: Waanders
authors.affiliation: Department of Vascular Surgery, St. Antonius Hospital, Nieuwegein, the Netherlands.
authors.forename: Jean-Paul P M
authors.initials: JP
authors.lastname: de Vries
mesh_terms: D017545:Aortic Aneurysm, Thoracic / Q000601:surgery*; D005260:Female; D006801:Humans; D008297:Male; D010100:Oxygen / Q000097:blood*; D019265:Spectroscopy, Near-Infrared / Q000379:methods*; D020760:Spinal Cord Ischemia / Q000517:prevention & control*; D014656:Vascular Surgical Procedures / Q000009:adverse effects*
chemical_list: D010100:Oxygen