Rats are a commonly used animal model for the study of the pathogenesis and novel treatments of glaucoma, which is induced experimentally using invasive, painful procedures. Peribulbar anaesthesia (PBA) is frequently used in people and domestic animals prior to ophthalmic surgeries to provide excellent perioperative analgesia. Our goal was to develop a PBA technique adapted to rat anatomy, improving the welfare of animals used as a model for glaucoma.
View Article and Find Full Text PDFIntroduction: Osteoarthritis is a common disease in dogs resulting in chronic pain and decreased wellbeing. Common analgesics such as non-steroidal anti-inflammatories may fail to control pain and can produce major adverse effects. Study objectives were to evaluate pharmacokinetics, therapeutic efficacy, and safety of subcutaneous liposomal-cannabidiol (CBD) as an additional analgesic therapy in dogs suffering from naturally-occurring osteoarthritis.
View Article and Find Full Text PDFThe purpose of this report is to describe the anesthetic and analgesic management and the surgical procedures of gonadectomy in six (four females and two males) healthy adult Egyptian fruit bats (). Bats were anesthetized with a combination of alfaxalone, midazolam, and morphine administered subcutaneously. Incisional line infiltration using bupivacaine was administered in all bats, and additional bilateral intratesticular injection was administered in the males.
View Article and Find Full Text PDFObjective: To compare the effect of propofol, alfaxalone and ketamine on intraocular pressure (IOP) in cats.
Study Design: Prospective, masked, randomized clinical trial.
Animals: A total of 43 ophthalmologically normal cats scheduled to undergo general anesthesia for various procedures.
A 14-year-old intact mixed breed dog (26 kg) was submitted for a novel cannabidiol (CBD) analgesic treatment. The dog was cachectic and had a testicular neoplasia, hip and elbow osteoarthritis and severe cervical pain. Analgesic treatment included canine osteoarthritic supplement, robencoxib and gabapentin.
View Article and Find Full Text PDFObjective: To determine the effect of butorphanol, administered by intravenous (IV) infusion, on the minimum alveolar concentration of isoflurane (MAC) in cats and to examine the dosage dependence of this effect.
Study Design: Randomized, placebo-controlled, crossover experimental study.
Animals: A group of six healthy adult male neutered cats.
The objectives of this clinical study were to compare the effectiveness and safety of medetomidine-ketamine-midazolam (MKM) versus medetomidine-ketamine-butorphanol (MKB) for immobilization of captive red kangaroos (). Twenty red kangaroos were randomly immobilized for routine treatments using intramuscular injection of MKM (0.065 ± 0.
View Article and Find Full Text PDFPractical Relevance: Increases in cat ownership worldwide mean more cats are requiring veterinary care. Illness, trauma and surgery can result in acute pain, and effective management of pain is required for optimal feline welfare (ie, physical health and mental wellbeing). Validated pain assessment tools are available and pain management plans for the individual patient should incorporate pharmacological and non-pharmacological therapy.
View Article and Find Full Text PDFJ Vet Pharmacol Ther
November 2021
This study characterized the pharmacokinetics of butorphanol in cats anesthetized with isoflurane. Six young healthy male neutered cats were used. Cats were anesthetized with isoflurane in oxygen.
View Article and Find Full Text PDFObjectives: The maxillary nerve courses very close to the globe, rendering cats - with their large eyes - at risk of globe penetration during infraorbital or maxillary nerve blocks. Therefore, the goals of the study were to compare the distribution and potential complications of three infraorbital or maxillary regional injection techniques.
Methods: Twenty-three bilateral maxillae of cat cadavers were used in a randomised blinded trial.
Objectives: To evaluate alfaxalone-midazolam anesthesia in Egyptian fruit bats (Rousettus aegyptiacus) and the effect of flumazenil administration on recovery time and quality.
Study Design: Randomized, blinded, crossover and controlled, experimental trial.
Animals: A total of 10 male Egyptian fruit bats.
Objective: To evaluate analgesic effects and complications associated with intraorbital insertion of an absorbable gelatin hemostatic sponge (AGHS) soaked with 1% ropivacaine solution following enucleation in dogs.
Animals: 20 client-owned dogs undergoing enucleation.
Procedures: Dogs were randomly assigned to receive an AGHS soaked with 1% ropivacaine solution (n = 10) or saline (0.
Objective: To establish and compare the effectiveness of two medetomidine-based immobilization protocols in Persian fallow deer (Dama dama mesopotamica).
Study Design: Prospective, randomized, blinded clinical study.
Animals: A group of 31 captive Persian fallow deer.
Vet Anaesth Analg
January 2019
Objective: Orbital and globe surgeries are commonly performed in companion animals and are considered to cause moderate to severe pain. Regional anesthesia techniques can provide complete sensory blockade, analgesia for painful procedures and improve surgical conditions. The purpose of this review is to summarize local and regional anesthesia techniques for ophthalmic surgery in dogs and cats with emphasis on veterinary publications in the past 12 years.
View Article and Find Full Text PDFObjective: To identify landmarks and to describe a technique for nerve blockade of the dorsal cranium in dogs.
Study Design: Anatomic cadaveric study.
Animals: A total of 39 dog cadavers, weighing 18.
Objective: To compare the effectiveness of retrobulbar anesthesia (RBA) and peribulbar anesthesia (PBA) in dogs.
Animal Studied: Six adult mixed-breed dogs (18-24 kg).
Procedures: In a randomized, masked, crossover trial with a 10-day washout period, each dog was sedated with intravenously administered dexmedetomidine and administered 0.
Egyptian fruit bats are increasingly used as model animals in neuroscience research. Our aim was to characterize suitable injectable anaesthesia for this species, possibly replacing inhalant anaesthesia, thus minimizing occupational health hazards. Eight bats were randomly assigned by a crossover design for subcutaneously administered combinations of medetomidine-midazolam with: saline (MM-Sal), ketamine (MM-Ket), fentanyl (MM-Fen), morphine (MM-Mor), or butorphanol (MM-But).
View Article and Find Full Text PDFRecords of 56 Persian fallow deer (Dama dama mesopotamica) immobilized for translocation were reviewed. Twenty-three were administered 0.05 ± 0.
View Article and Find Full Text PDFObjective: To compare injectate distribution and likelihood of regional anesthesia to the orbit following retrobulbar (RB) or peribulbar (PB) injections in dog cadavers.
Study Design: Randomized, masked study.
Animals: Twenty-four dog cadavers (aged 5.
Objective: To evaluate whether intratesticular and incisional ropivacaine infiltration produces sufficient intra- and postoperative analgesia for castrating dogs under sedation.
Study Design: Randomized, blinded, controlled clinical study.
Animals: Twenty-three healthy dogs weighing 5.
Objective: To determine the effects of morphine, methadone, hydromorphone or oxymorphone on the thermal threshold in cats, following buccal and intravenous (IV) administration.
Study Design: Randomized crossover study.
Animals: Six healthy adult female ovariohysterectomized cats weighing 4.
OBJECTIVE To determine the locomotor response to the administration of fentanyl in horses with and without the G57C polymorphism of the μ-opioid receptor. ANIMALS 20 horses of various breeds and ages (10 horses heterozygous for the G57C polymorphism and 10 age-, breed-, and sex-matched horses that did not have the G57C polymorphism). PROCEDURES The number of steps each horse took was counted over consecutive 2-minute periods for 20 minutes to determine a baseline value.
View Article and Find Full Text PDFObjective: To determine plasma bupivacaine concentrations after retrobulbar or peribulbar injection of bupivacaine in cats.
Study Design: Randomized, crossover, experimental trial with a 2 week washout period.
Animals: Six adult healthy cats, aged 1-2 years, weighing 4.
Purpose: A form of retinal degeneration suspected to be hereditary was discovered in a family of Bengal cats. A breeding colony was established to characterize disease progression clinically, electrophysiologically, and morphologically, and to investigate the mode of inheritance.
Methods: Affected and related cats were donated by owners for breeding trials and pedigree analysis.
Seventeen captive Nubian ibex (Capra nubiana) were immobilized for transportation and/or hoof trimming, deworming, and vaccinations. Of these, 11 were immobilized with a combination of butorphanol (0.13±0.
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