Effects of dopamine and dobutamine on isoflurane-induced hypotension in Hispaniolan Amazon parrots (Amazona ventralis)

Abstract

Dobutamine CRI at 5, 10, and 15 μg/kg/min and dopamine CRI at 5, 7, and 10 μg/kg/min may be useful in correcting severe hypotension in Hispaniolan Amazon parrots caused by anesthesia maintained with 2.5% isoflurane.

Cardiorespiratory parameters in the awake pigeon and during anaesthesia with isoflurane

“…Isoflurane is known to be a vasodilator (Schnellbacher et al. ) and the consequent decrease in systemic vascular resistance may represent the main cause of hypotension; the degree of hypotension has been correlated with depth of isoflurane anaesthesia in other avian species (Ludders et al. ; Naganobu & Hagio ; Kim et al.…”

Anaesthesia with sevoflurane in pigeons: minimal anaesthetic concentration (MAC) determination and investigation of cardiorespiratory variables at 1 MAC

“…In other studies, no differences were reported in arterial blood pressure during ISO or SEVO anaesthesia in bald eagles (Joyner and others 2008) and red‐tailed hawks (Granone and others 2012). Hypotension can be explained by a decrease of the systemic vascular resistance following the vasodilator effect of these inhalant agents (Souza and others 2005, Schnellbacher and others 2012). Hypotension can also be observed in association with cardiac arrhythmias (Lichtenberger 2005).…”