“…Impaired arterial oxygenation occurs during tiletamine-zolazepam anaesthesia after romifidine (Marntell & Nyman 1996b), xylazine or detomidine (Hubbell et al 1989;Matthews et al 1991a;Wan et al 1992;Muir et al 1999). Decreased PaO 2 during dissociative anaesthesia in the present study was mainly attributed to a significant increase in shunt and _ V A = _ Q mismatch with both techniques.…”