“…For dogs, xenon 119% or N 2 O 188% is equal to 1.0 MAC (5). The inspired concentration of xenon or N 2 O was continuously monitored using a xenon analyzer (Anzai Medical, Tokyo, Japan) or an anesthetic/respiratory gas analyzer (Ultima, Datex-Omeda Division, Instrumentarium Corp, Helsinki, Finland), and was strictly controlled by using a computer-controlled functionally closed anesthesia system (6). After 60 min of steady state condition, in each group, HR, MAP, blood gas tensions, and Pdi were measured.…”