Induction and recovery characteristics and cardiopulmonary effects of sevoflurane and isoflurane in bald eagles

Abstract

Isoflurane and sevoflurane administration resulted in smooth, rapid induction of and recovery from anesthesia similar to other species. Isoflurane administration resulted in tachycardia, hypertension, and more arrhythmias, compared with sevoflurane. Sevoflurane was associated with fewer adverse effects and may be particularly beneficial in compromised bald eagles.

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

“…The time to recovery was also shorter with SEVO (6.4±1.7 minutes) compared with ISO under similar experimental conditions (17.6±3.4 minutes; Botman and others 2016). These results are similar to previous studies reporting faster recovery times with SEVO compared with ISO in avian species (Korbel, 1998, Joyner and others 2008, Granone and others 2012, Chan and others 2013). These findings could be explained by the lower blood gas partition coefficient of SEVO (Patel and Goa 1996), that is, a lower blood solubility of SEVO compared with ISO (Edling 2006).…”

“…HR was well maintained under SEVO anaesthesia, as was previously reported under ISO anaesthesia in similar conditions (135±28 beats/minute; Botman and others 2016). This is consistent with other studies in psittacines (Quandt and Greenacre 1999), red-tailed hawks (Granone and others 2012) and crested serpent eagles (Chan and others 2013), but is at odds with a study in bald eagles in which HR was significantly higher under ISO anaesthesia than SEVO anaesthesia (Joyner and others 2008). …”

“…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).…”

“…Sevoflurane (SEVO) has been used for avian anaesthesia, where it is characterised by less airway irritation (Granone and others 2012) and a lower blood solubility (Edling 2006) than isoflurane (ISO) and is associated with faster anaesthetic induction and recovery times that could justify its wider use (Korbel 1998, Joyner and others 2008, Granone and others 2012, Phair and others 2012). …”

Influência de diferentes protocolos de contenção nosvalores do eletrocardiograma de macacos-da-noite (Aotus azarae infulatus)

“…Apesar de o isoflurano ser um anestésico indicado para pacientes com alterações cardíacas, o Grupo ISO também promoveu alterações, o que está de acordo com o citado por Joyner et al (2008) em águias. Isso pode ter ocorrido devido ao estresse causado pela indução com máscara e pelo odor pungente do agente, fato este também observado por Moutinho (2010) em coelhos.…”