Dexmedetomidine-isoflurane versus fentanyl-isoflurane anesthesia for colorectal surgery: Effect on perianastomotic microperfusion and oxygenation in pigs.

Background: The effect of dexmedetomidine on regional splanchnic blood flow remain unclear.

Objectives: We hypothesized, that there is no difference in regional rectal perianastomotic perfusion and oxygenation when using non-opioid dexmedetomidine-isoflurane anesthesia when compared to fentanyl-isoflurane anesthesia.

Methods: Ten female pigs were randomly divided into two groups (Dexmedetomidine, DEX, Fentanyl, FNT).