Post-anesthetic CPS and EQUUS-FAP scores in surgical and non-surgical equine patients: an observational study.

Background: Equine pain scoring may be affected by the residual effect of anesthetic drugs.

Objectives: To compare pain scores in the hours immediately following anesthetic recovery to baseline pre-anesthetic scores in equine patients undergoing surgical and non-surgical procedures.

Study Design: Clinical observational study.

Anesthesia for the dog with heartworm disease: a brief, practical review.

Dogs with heartworm disease may present for procedures that require anesthesia. This article is a brief, practical review of anesthetic techniques for dogs with heartworm. Dogs with heartworm, such as in a shelter that undergo spay and neuter procedures, may be safely anesthetized prior to heartworm treatment.

The effect of adding a heated humidified breathing circuit on body temperature in healthy anesthetized dogs.

Objective: To compare the effect of a circulating warm water blanket (WWB) in combination with a heated humidified breathing circuit (HHBC) heated to 45 °C on rectal temperature (RT) in dogs undergoing general anesthesia for elective ovariohysterectomies.

Animals: 29 healthy dogs.

Procedures: Dogs in the experimental group (n = 8) and dogs in the control group (21) were connected to an HHBC and a conventional rebreathing circuit, respectively.

Antinociceptive effects of bupivacaine injected within the internal abdominis rectus sheath in standing healthy horses.

Objective: To evaluate a regional anesthetic technique for blocking the abdominal midline in horses.

Study Design: Anatomical description and prospective, crossover, placebo-controlled, blinded study.

Animals: Adult horses; two cadavers, six healthy animals.

Retrospective assessment of general anesthesia-related challenges, morbidity, and death in snakes: 139 cases (2000-2022).

Objective: To summarize the anesthetic events of snakes seen at a large university hospital, identify challenges with record keeping, and assess patient and anesthesia-related morbidity and death.

Sample: 139 anesthetic events were performed; only 106 cases had detailed anesthetic reports available for further analyses.

Procedures: Medical records of snakes that underwent general anesthesia between October 2000 and January 2022 were retrospectively reviewed.

Development of the Auburn Induction Scale for evaluating induction quality in dogs.

Objective: To develop and begin establishing evidence for validity of an instrument to assess the quality of induction in dogs.

Study Design: Cross-sectional survey and video scoring.

Animals And Population: A total of 51 veterinary anesthesia personnel, four board-certified anesthesiologists and videos of induction of anesthesia in 18 dogs.

Comparison of hydromorphone and butorphanol for management of pain in equine patients undergoing elective arthroscopy: a randomized clinical trial.

Objective: To compare the effects of hydromorphone and butorphanol in horses undergoing arthroscopy and describe the pharmacokinetics of hydromorphone in anesthetized horses.

Study Design: Randomized controlled clinical trial.

Animals: A total of 40 adult horses admitted for elective arthroscopy.

The effect of a ketamine constant rate infusion on cardiovascular variables in sheep anesthetized at the minimum alveolar concentration of sevoflurane that blunts adrenergic responses.

Objective: To evaluate the effect of a constant rate infusion of ketamine on cardiac index (CI) in sheep, as estimated using noninvasive cardiac output (NICO) monitoring by partial carbon dioxide rebreathing, when anesthetized with sevoflurane at the previously determined minimum alveolar concentration that blunts adrenergic responses (MACBAR).

Animals: 12 healthy Dorset-crossbred adult sheep.

Procedures: Sheep were anesthetized 2 times in a balanced placebo-controlled crossover design.

Influence of doxapram and intermittent 10% carbon dioxide inspiration on cardiovascular and laryngeal functions in anesthetized dogs.

Objective: To compare the effects of two doses of doxapram intravenous injection and carbon dioxide inhalation on the cardiovascular and laryngeal functions of anesthetized hounds.

Study Design: Experimental study.

Animals: Six healthy adult dogs.

Physiologic and blood gas effects of xylazine-ketamine versus xylazine-tiletamine-zolazepam immobilization of white-tailed deer before and after oxygen supplementation: a preliminary study.

Objective: To compare oxygenation and ventilation in white-tailed deer (Odocoileus virginianus) anesthetized with two treatments with and without oxygen supplementation.

Study Design: Randomized, blinded, crossover study.

Animals: A total of eight healthy adult white-tailed deer weighing 49-62 kg.

Pharmacokinetics and pharmacodynamics of methadone administered intravenously and intramuscularly to isoflurane-anesthetized chickens.

Objective: To determine the pharmacokinetics and pharmacodynamics of methadone after IV or IM administration to isoflurane-anesthetized chickens.

Animals: 6 healthy adult Hy-Line hens.

Procedures: In a randomized crossover-design study, methadone (6 mg/kg) was administered IV and IM to isoflurane-anesthetized chickens with a 1-week washout period between experiments.

The pharmacokinetics of a fentanyl matrix patch applied at three different anatomical locations in horses.

Background: Matrix fentanyl patches have not been investigated in horses and may represent an effective means of providing analgesia over an extended time period without venous catheterisation.

Objectives: To describe the pharmacokinetics of a matrix transdermal fentanyl patch in horses.

Study Design: Randomised experiment, Latin-square design.

Effect of Meperidine on Equine Blood Histamine, Tryptase, and Immunoglobulin-E Concentrations.

To evaluate changes in immunological parameters following subcutaneous (SC) and intramuscular (IM) administration of meperidine in horses through quantitative analysis of plasma tryptase, histamine, and IgE levels. Six adult horses were enrolled in a prospective randomized crossover design. Horses were administered one treatment per day, with a seven day washout period: (a) meperidine 1 mg/kg IM, saline 6 mL SC; (b) saline 6 mL IM, meperidine 1 mg/kg SC; (c) saline 6 mL SC, saline 6 mL IM.

Pharmacokinetics and pharmacodynamics of meperidine after intramuscular and subcutaneous administration in horses.

Objective: To describe the pharmacokinetics and pharmacodynamics of meperidine after IM and subcutaneous administration in horses.

Study Design: prospective, randomized, blinded, crossover trial.

Animals: Six adult horses weighing 494 ± 33 kg.

Arterial oxygenation in anesthetized horses placed in a 5-degree reverse Trendelenburg position.

Low arterial oxygen is a common complication in anesthetized horses and placing the animal in reverse Trendelenburg (RT) position may treat hypoxemia. The objective of this study was to assess the arterial partial pressure of oxygen (PaO) in horses placed in a 5-degree RT compared to horizontal (H) position. Client-owned healthy horses (n = 60) undergoing elective surgeries were enrolled in a randomized controlled clinical study.

A retrospective evaluation of the effect of perianesthetic hydromorphone administration on the incidence of postanesthetic signs of colic in horses.

Objective: To describe the incidence of postanesthetic signs of colic (PASC) in horses and determine if perianesthetic administration of hydromorphone was associated with an increased risk of PASC.

Study Design: Retrospective, cohort study.

Animals: A total of 409 horses.

Determination of the minimum alveolar concentration of sevoflurane that blunts adrenergic responses and the effect of a constant rate infusion of ketamine in sheep.

Minimizing sympathetic stimulation under anesthesia prevents activation of the neuroendocrine stress response. The minimum alveolar concentration blunting adrenergic responses in 50% of the population when exposed to a noxious stimulus is defined as MAC-BAR. The purpose of this study was to determine the MAC-BAR of sevoflurane (MAC-BAR) in sheep and the MAC-BAR sparing effects of ketamine.

The pharmacokinetics and pharmacodynamics of intravenous hydromorphone in horses.

Objective: Describe the pharmacokinetics and pharmacodynamics of intravenous hydromorphone in healthy horses.

Study Design: Masked, randomized, cross-over, Latin square design.

Animals: A group of eight healthy adult horses METHODS: Horses were administered each of four treatments with an 8 day washout.

Agreement among anesthesiologists regarding postoperative pain assessment in dogs.

Objective: To establish evidence for the validity and reliability of three commonly used pain scales in dogs when assessed by video by specialists in anesthesia.

Study Design: Mixed-method test-retest observational study.

Subjects: A group of six American College of Veterinary Anesthesia and Analgesia board-certified specialists and 31 postoperative dogs.

Effect of routine pre-anesthetic laboratory screening on pre-operative anesthesia-related decision-making in healthy dogs.

The usefulness of pre-anesthetic laboratory screening of healthy veterinary patients is controversial and clear evidence-based guidelines do not exist. The purpose of our study was to determine the influence of preanesthetic laboratory screening on peri-anesthetic plans in canine patients undergoing elective surgery. One hundred medical records were randomly selected between the years 2008 and 2013 and patient information was presented to 5 Diplomates of the American College of Veterinary Anesthesia and Analgesia (ACVAA) for review.

Critical incident technique analysis applied to perianesthetic cardiac arrests at a university teaching hospital.

Objective: To apply the critical incident technique (CIT) methodology to a series of perianesthetic cardiac arrest events at a university teaching hospital to describe the factors that contributed to cardiac arrest.

Study Design: CIT qualitative analysis of a case series.

Animals: A group of 16 dogs and cats that suffered a perioperative cardiac arrest between November 2013 and November 2016.

Accuracy of an oscillometric blood pressure monitor in anesthetized pigs.

The purpose of this study is to evaluate the accuracy of an oscillometric blood pressure monitor in anesthetized pigs. Invasive blood pressure (IBP) and noninvasive blood pressure (NIBP) measurements were taken using a DRE Waveline Pro multiparameter monitor at four different time points in 17 pigs undergoing injectable anesthesia. NIBP measurements were taken on both the thoracic and pelvic limbs.

Evaluation of a point-of-care blood glucose monitor in healthy goats.

Objective: To assess agreement between a point-of-care glucometer (POCG) and a laboratory chemistry analyzer for blood glucose measurements in goats.

Design: Prospective study.

Setting: University teaching hospital.

Effects of intravenous administration of lidocaine and buprenorphine on gastrointestinal tract motility and signs of pain in New Zealand White rabbits after ovariohysterectomy.

OBJECTIVE To compare analgesic and gastrointestinal effects of lidocaine and buprenorphine administered to rabbits undergoing ovariohysterectomy. ANIMALS Fourteen 12-month-old female New Zealand White rabbits. PROCEDURES Rabbits were assigned to 2 treatment groups (7 rabbits/group).