The cardiovascular effects of inspired oxygen fraction in anaesthetized patients.


BACKGROUND AND OBJECTIVE Increased inspired oxygen fractions (FiO2) have significant haemodynamic effects in awake volunteers. We sought to establish whether these effects are also present in anaesthetized patients. METHODS We prospectively studied 30 ASA I-II patients, 15 in each of a propofol and sevoflurane group. Their haemodynamic responses, awake… (More)