Table 1. Ventilatory, Heart Rate, and Bispectral Index Responses to Sustained Hypoxia before and during Propofol Administration
Values are mean ± SD.
N = the last normoxic minute before the 15-min hypoxic period; H1= the third minute of initial hypoxia; H2= the 15th minute of initial hypoxia; H3= the third minute of the second hypoxic episode; V̇i= minute ventilation; VT= tidal volume;f = respiratory frequency; BIS = bispectral index; PETCO2= end-tidal carbon dioxide partial pressure; PETO2= end-tidal oxygen partial pressure; SpO2= oxygen saturation as measured by pulse oximetry.
*P < 0.05 vs. period N.
†P < 0.05 vs. periods N and H1.
‡P < 0.05 vs. period H1.