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Veterinary Anaesthesia and Analgesia

Bruno H Pypendop, Kristine T Siao, M G Ranasinghe, Kirby Pasloske
OBJECTIVE: To determine the effective plasma alfaxalone concentration for the production of immobility in cats. STUDY DESIGN: Prospective up-and-down study. ANIMALS: Sixteen 1-2 year old male castrated research cats. METHODS: Cats were instrumented with catheters in a jugular and a medial saphenous vein. Alfaxalone was administered via the medial saphenous catheter, using a target-controlled infusion system. The infusion lasted for approximately 32 minutes...
February 5, 2018: Veterinary Anaesthesia and Analgesia
Denise I Radkey, Robert J Hardie, Lesley J Smith
OBJECTIVE: To compare the effects of alfaxalone and propofol, with and without acepromazine and butorphanol followed by doxapram, on laryngeal motion and quality of laryngeal examination in dogs. STUDY DESIGN: Randomized, crossover, blinded study. ANIMALS: Ten female Beagle dogs, aged 11-13 months and weighing 7.2-8.6 kg. METHODS: The dogs were administered four intravenous (IV) treatments: alfaxalone (ALF), alfaxalone+acepromazine and butorphanol (ALF-AB), propofol (PRO) and propofol+AB (PRO-AB)...
February 3, 2018: Veterinary Anaesthesia and Analgesia
Katja N Adamik, Rafael Obrador, Judith Howard
OBJECTIVE: To evaluate the effects of a 6% hydroxyethyl starch (130/0.42) in either a buffered, electrolyte-balanced (HES-BAL) or saline (HES-SAL) carrier solution on electrolyte concentrations and acid-base parameters in healthy anaesthetized dogs. STUDY DESIGN: Prospective randomised clinical study. ANIMALS: A group of 40 client-owned dogs undergoing general anaesthesia for elective surgical procedures or diagnostic imaging. METHODS: During anaesthesia, dogs were intravenously administered 15 mL kg-1 of either HES-SAL (n = 20) or HES-BAL (n = 20) over 30-40 minutes...
January 11, 2018: Veterinary Anaesthesia and Analgesia
Lauren E James, Catherine Ja Williams, Mads F Bertelsen, Tobias Wang
OBJECTIVE: To characterise the minimum dose of intramuscular alfaxalone required to facilitate intubation for mechanical ventilation, and to investigate the impact of cranial versus caudal injection on anaesthetic depth. STUDY DESIGN: Randomised crossover study. ANIMALS: Six healthy juvenile ball pythons (Python regius). METHODS: Three dosages (10, 20 and 30 mg kg -1 ) of alfaxalone were administered to each python in a caudal location with a minimum 2 weeks washout...
January 9, 2018: Veterinary Anaesthesia and Analgesia
Stefania Scarabelli, Dorina Timofte, Fernando Malalana, David Bardell
OBJECTIVE: To evaluate the incidence of corneal abrasions/ulceration and microbial contamination in horses undergoing general anaesthesia. STUDY DESIGN: Prospective, observational, clinical study. ANIMALS: A total of 40 client-owned healthy horses scheduled for elective non-ophthalmic procedures. METHODS: Conjunctival sac swabs were taken, fluorescein dye applied and digital images recorded from both eyes of the horses after preanaesthetic medication and 24 hours after recovery from general anaesthesia...
January 9, 2018: Veterinary Anaesthesia and Analgesia
James Hunt
No abstract text is available yet for this article.
January 6, 2018: Veterinary Anaesthesia and Analgesia
Leandro G Franco, Carlos Henrique M Wilges, Daniel P Junior, Sofia A Cerejo, Lilian T Nishimura, Isabela P Bittar
OBJECTIVE: To evaluate the effects of ketamine continuous rate infusions (CRI) at two dose rates on cardiovascular function and serum creatine kinase MB isoenzyme (CK-MB) and troponin I in healthy conscious dogs. STUDY DESIGN: Experimental, prospective, crossover, randomized, blinded study. ANIMALS: Eight adult mixed-breed dogs, aged 6±1 years and weighing 19±8.6 kg (mean±standard deviation). METHODS: Dogs were administered an intravenous bolus of ketamine (0...
December 18, 2017: Veterinary Anaesthesia and Analgesia
Alain Regnier, Iris Berton, Didier Concordet, Jean-Yves Douet
OBJECTIVE: To assess the degree and duration of corneal anaesthesia provided by topical application of a non-ophthalmic 2% lidocaine gel in horses. STUDY DESIGN: Experimental, 'blinded', randomized prospective study. ANIMALS: Twelve adult horses without relevant ocular abnormalities. METHODS: Baseline corneal touch threshold (CTT) measurements were obtained bilaterally by use of a Cochet-Bonnet aesthesiometer just prior to topical treatment...
March 2018: Veterinary Anaesthesia and Analgesia
Liza Wittenberg-Voges, Sabine Br Kästner, Marja Raekallio, Outi M Vainio, Karl Rohn, Klaus Hopster
OBJECTIVE: To compare the effects of MK-467 during isoflurane anaesthesia combined with xylazine or dexmedetomidine on global and gastrointestinal perfusion parameters. STUDY DESIGN: Prospective, randomized experimental trial. ANIMALS: A total of 15 warmblood horses. METHODS: Horses were divided into two groups for administration of either dexmedetomidine (D) or xylazine (X) for premedication (D: 3.5 μg kg-1 ; X: 0...
March 2018: Veterinary Anaesthesia and Analgesia
Cynthia M Trim, Shannon M Axiak Flammer
No abstract text is available yet for this article.
January 2018: Veterinary Anaesthesia and Analgesia
Constanza S Meneses, Heine Y Müller, Daniel E Herzberg, Benjamin Uberti, Marianne P Werner, Hedie A Bustamante
OBJECTIVE: To determine the microglial and astrocyte response to painful lameness in horses. STUDY DESIGN: Ionized calcium binding adaptor molecule 1 (Iba-1) and glial fibrillary acidic protein (GFAP) expression, cell density and morphology were determined through immunofluorescence within the dorsal horn of equine spinal cord. ANIMALS: A total of five adult horses with acute or chronic unilateral lameness, previously scheduled for euthanasia...
January 2018: Veterinary Anaesthesia and Analgesia
Klaus Hopster, Stephan Neudeck, Liza Wittenberg-Voges, Sabine Br Kästner
OBJECTIVE: To compare alteration in intestinal blood flow in anaesthetized horses with changes in oral mucosa blood flow. STUDY DESIGN: Prospective, randomized clinical study. ANIMALS: Eight warmblood horses. METHODS: After induction with guaifenesin and ketamine, anaesthesia was maintained with isoflurane at 1.5 vol% in oxygen. The tissue blood flow was measured using laser Doppler flowmetry at the jejunum, colon, rectal mucosa, oesophageal mucosa and the oral mucosa...
January 2018: Veterinary Anaesthesia and Analgesia
João Ca Alves, Ana Mmp Dos Santos, Ângelo Dp Fernandes
OBJECTIVE: To evaluate the feasibility and effectiveness of mesotherapy in dogs compared with a positive control group. STUDY DESIGN: Experimental, randomized, blinded study. ANIMALS: Fifteen working police dogs with chronic back pain. METHODS: Animals were divided randomly into control (CG; n = 5) and treatment groups (TG; n = 10). A combination of 140 mg lidocaine, 15 mg dexamethasone and 20 mg thiocolchicoside was administered to group TG along with a 70-day course of a placebo, administered as if it was carprofen...
January 2018: Veterinary Anaesthesia and Analgesia
Martina Mosing, Ulrike Auer, Paul MacFarlane, David Bardell, Johannes P Schramel, Stephan H Böhm, Regula Bettschart-Wolfensberger, Andreas D Waldmann
OBJECTIVE: The aim of this study was to evaluate the effect of continuous positive airway pressure (CPAP) on regional distribution of ventilation and dead space in anaesthetized horses. STUDY DESIGN: Randomized, experimental, crossover study. ANIMALS: A total of eight healthy adult horses. METHODS: Horses were anaesthetized twice with isoflurane in 50% oxygen and medetomidine as continuous infusion in dorsal recumbency, and administered in random order either CPAP (8 cmH2 O) or NO CPAP for 3 hours...
January 2018: Veterinary Anaesthesia and Analgesia
James Bowden, Ngaio J Beausoleil, Kevin J Stafford, Michael A Gieseg, Janis Bridges
OBJECTIVE: To compare the thermal nociceptive thresholds (TNTs) of dogs from three working/sport breeds. STUDY DESIGN: Experimental prospective study. ANIMALS: Thirty healthy adult dogs of mixed age, sex and reproductive status, 10 of each of three breeds: Harrier Hound, Greyhound and New Zealand Huntaway. METHODS: On one day of each week for 4 weeks, unrestrained dogs were tested six times. TNTs were measured using a remotely activated device comprising a thermode attached to the thoracic limb, controlled by a microprocessor attached to the animal...
January 2018: Veterinary Anaesthesia and Analgesia
Maja J Drozdzynska, Yu-Mei Chang, Giacomo Stanzani, Ludovic Pelligand
OBJECTIVES: Goal-directed fluid therapy (GDFT) based on pulse pressure variation (PPV) was used in anaesthetized dogs undergoing abdominal surgeries. The aims were 1) to evaluate the success rate of the PPV ≥13% in detecting fluid responsiveness [delta stroke volume (ΔSV) ≥10%]; 2) to assess the correlation between PPV, systolic pressure variation (SPV), Plethysmograph Variability Index (PVI) and central venous pressure (CVP) and 3) to establish the threshold value for the PVI that would predict a PPV value of ≥13% and indirectly discriminate responders from nonresponders to fluid therapy...
January 2018: Veterinary Anaesthesia and Analgesia
Matthew W McMillan, Kristina S Lehnus
OBJECTIVE: To identify factors contributing to the development of anaesthetic safety incidents. STUDY DESIGN: Prospective, descriptive, voluntary reporting audit of safety incidents with subsequent systems analysis. ANIMALS: All animals anaesthetized in a multispecies veterinary teaching hospital from November 2014 to October 2016. METHODS: Peri-anaesthetic incidents that risked or caused unnecessary harm to an animal were reported by anaesthetists alongside animal morbidity and mortality data...
January 2018: Veterinary Anaesthesia and Analgesia
Viviane H Gomes, Renato Ls Oliveira, Juliana Lr Marques, Cassia Mm Coelho, Marta Fa Silva
OBJECTIVE: To compare sedation and effects on heart rate (HR), mean arterial pressure (MAP) and respiratory rate (fR ) of nalbuphine and butorphanol, alone or combined with acepromazine in dogs. STUDY DESIGN: Prospective, randomized experimental trial. ANIMALS: Eight healthy Beagle dogs, aged (mean ± standard deviation) 3.4 ± 0.5 years and weighing 11.0 ± 1.3 kg. METHODS: Each dog was treated four times: physiological saline (1 mL) combined with nalbuphine (0...
January 2018: Veterinary Anaesthesia and Analgesia
Usama Hagag, Mohamed G Tawfiek
OBJECTIVES: To describe the 'blind' and ultrasound-guided approaches to block the maxillary nerve in donkeys. To compare the success and complication rates between the 'blind' and ultrasound-guided techniques based on staining of nerves and other structures in cadavers and assessing level of analgesia in live animals. STUDY DESIGN: Prospective anatomical and experimental study. ANIMALS: Eighteen cadaver heads and nine adult live donkeys. METHODS: Phase 1: the anatomical characteristics of the maxillary nerve and its related structures were investigated within the pterygopalatine fossa in five cadavers...
January 2018: Veterinary Anaesthesia and Analgesia
Rocío Evangelista Vaz, Dragomir I Draganov, Christelle Rapp, Frederic Avenel, Guido Steiner, Margarete Arras, Alessandra Bergadano
OBJECTIVE: 1) To determine the pharmacokinetics of tramadol hydrochloride and its active metabolite, O-desmethyltramadol (M1), after administration through different routes in female and male C57Bl/6 mice; 2) to evaluate the stability of tramadol solutions; and 3) to identify a suitable dose regimen for prospective clinical analgesia in B6 mice. STUDY DESIGN: Prospective, randomized, blinded, parallel design. ANIMALS: A total of 18 male and 18 female C57Bl/6 mice (20-30 g)...
January 2018: Veterinary Anaesthesia and Analgesia
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