The effects of detomidine, romifidine or acepromazine on echocardiographic measurements and cardiac function in normal horses.

Objective: To evaluate by echo- and electrocardiography the cardiac effects of sedation with detomidine hydrochloride, romifidine hydrochloride or acepromazine maleate in horses.

Study Design: An experimental study using a cross-over design without randomization.

Animals: Eight clinically normal Standardbred trotters.