Anesthesia & Sedation

Intramuscular infiltration of a local anesthetic, lidocaine, does not result in adverse behavioural side effects in rainbow trout

Fish are a useful animal model for research, but our improvement in some aspects of their welfare has not kept pace with their increased popularity for this use. For example, researchers rarely use analgesics. We evaluated the side effects of...

Year Published: 2018Topics: Anesthesia & SedationAnimal Type: Fish, Trout

Citation: Chatigny, F., Creighton, C. M., Stevens, E. D. 2018. Intramuscular infiltration of a local anesthetic, lidocaine, does not result in adverse behavioural side effects in rainbow trout. Scientific Reports 8, 10250.

Comparison of atipamezole with yohimbine for antagonism of xylazine in mice anesthetized with ketamine and xylazine

The α2 adrenergic agonist xylazine produces a sedative effect and is typically combined with ketamine and used for anesthesia or chemical restraint of laboratory mice. Xylazine's sedative effect—and its undesirable side effects of bradycardia, hypotension, and poor tissue perfusion—can be...

Year Published: 2017Topics: Anesthesia & SedationAnimal Type: Mouse, Rodent

Citation: Janssen, C. F., Maiello, P., Wright Jr, M. J. et al. 2017. Comparison of atipamezole with yohimbine for antagonism of xylazine in mice anesthetized with ketamine and xylazine. JAALAS 56(2), 142-147.

Benefits of 21% oxygen compared with 100% oxygen for delivery of isoflurane to mice (Mus musculus) and rats (Rattus norvegicus)

At research institutions, isoflurane delivered by precision vaporizer to a face mask is the standard for rodent surgery and for procedures with durations that exceed a few minutes. Pure oxygen is often used as the carrier gas for isoflurane anesthesia,...

Year Published: 2017Topics: Anesthesia & SedationAnimal Type: Mouse, Rat, Rodent

Citation: Wilding, L. A., Hampel, J. A., Khoury, B. M. et al. 2017. Benefits of 21% oxygen compared with 100% oxygen for delivery of isoflurane to mice (Mus musculus) and rats (Rattus norvegicus). JAALAS 56(2), 148-154.

The suitability of propofol compared with urethane for anesthesia during urodynamic studies in rats

Urethane anesthesia preserves many reflex functions and is often the preferred anesthetic for urodynamic studies in rats. Because of the toxicity profile of urethane, its use as an anesthetic typically is limited to acute and terminal investigations. Alternative anesthetic options...

Year Published: 2016Topics: Anesthesia & SedationAnimal Type: Rat, Rodent

Citation: Moheban, A. A., Chang, H. H., Havton, L. A. 2016. The suitability of propofol compared with urethane for anesthesia during urodynamic studies in rats. JAALAS 55(1), 89–94.

Behavioral characteristics of adult zebrafish (Danio rerio) after MS222 anesthesia for fin excision

The health of laboratory animals is an ethical responsibility of researchers and a critical determinant of experimental outcome. Therefore, all Husbandry & Management procedures should be evaluated for their effects on mortality, behavior, and physiology to maximize animal welfare and...

Year Published: 2017Topics: Anesthesia & SedationAnimal Type: Fish, Zebrafish

Citation: De Lombaert, M. C. M., Rick, E. L., Krugner-Higby, L. A. et al. 2017. Behavioral characteristics of adult zebrafish (Danio rerio) after MS222 anesthesia for fin excision. JAALAS 56(4), 377-381.

Oral transmucosal detomidine gel in New Zealand White rabbits (Oryctolagus cuniculus)

Handling and restraining rabbits for routine procedures may be impossible without prior sedation, result in unnecessary stress or injury to the rabbit or handler, and increase experimental variability. Parenteral administration of sedatives can cause stress also, as well as localized...

Year Published: 2017Topics: Anesthesia & SedationAnimal Type: Rabbit

Citation: Williams, M. D., Long, C. T., Durrant, J. R. et al. 2017. Oral transmucosal detomidine gel in New Zealand White rabbits (Oryctolagus cuniculus). JAALAS 56(4), 436-442.

Uses and doses of local anesthetics in fish, amphibians, and reptiles

Local anesthetics are an integral part of routine pain management in mammals, yet their use is relatively limited in fish, amphibians and reptiles. These animals frequently undergo potentially painful surgical procedures and therefore could possibly benefit from those drugs. Some...

Year Published: 2017Topics: Analgesia, Anesthesia & SedationAnimal Type: Amphibian, Crocodile & Alligator, Fish, Frog & Toad, Lizard, Other Fish, Reptile, Salamander, Salmon, Snake, Tilapia, Trout, Turtle & Tortoise, Zebrafish

Citation: Chatigny, F., Kamunde, C., Creighton, C. M. et al. 2017. Uses and doses of local anesthetics in fish, amphibians, and reptiles. JAALAS 56(3), 244-253.

Anesthetic and postanesthetic effects of alfaxalone–butorphanol compared with dexmedetomidine–ketamine in chinchillas (Chinchilla lanigera)

Effective and safe anesthetic protocols are required for a variety of surgical and diagnostic procedures in chinchillas. Alfaxalone, a new anesthetic agent in the United States, can be administered intramuscularly and subcutaneously and is therefore potentially useful as an anesthetic...

Year Published: 2017Topics: Anesthesia & SedationAnimal Type: Chinchilla, Rodent

Citation: Parkinson, L., Mans, C. 2017. Anesthetic and postanesthetic effects of alfaxalone–butorphanol compared with dexmedetomidine–ketamine in chinchillas (Chinchilla lanigera). JAALAS 56(3), 290-295.

Effect of home cage bedding in the induction chamber on serum cortisol and corticosterone levels in response to isoflurane-induced anesthesia in C57BL/6J mice

Mice are routinely anesthetized with isoflurane in an induction chamber. The AVMA Guidelines for the Euthanasia of Animals states that distress should be minimized during euthanasia but does not address this point in regard to induction of anesthesia. Here we...

Year Published: 2017Topics: Anesthesia & SedationAnimal Type: Mouse, Rodent

Citation: Reiter, C. P., Christy, A. C., Olsen, C. H. et al. 2017. Effect of home cage bedding in the induction chamber on serum cortisol and corticosterone levels in response to isoflurane-induced anesthesia in C57BL/6J mice. JAALAS 56(2), 118-121.

Quantification of induced hypothermia from aseptic scrub applications during rodent surgery preparation

Laboratory mice (Mus musculus) are prone to develop hypothermia during anesthesia for surgery, thus potentially impeding anesthetic recovery, wound healing, and future health. The core body temperatures of isoflurane-anesthetized mice are influenced by the choice of supplemental heat sources; however,...

Year Published: 2017Topics: Anesthesia & SedationAnimal Type: Mouse, Rodent

Citation: Skorupski, A. M., Zhang, J., Ferguson, D. et al. 2017. Quantification of induced hypothermia from aseptic scrub applications during rodent surgery preparation. JAALAS 56(5), 562-569.