Pilot study characterizing a single pooled preparation of equine platelet lysate for nebulization in the horse.

Introduction: Platelet lysate (PL) demonstrates antimicrobial and anti-inflammatory properties offering potential for treatment of bacterial pneumonia in horses. It remains unknown whether nebulization is suitable for PL administration in horses. This pilot study characterized particle size and flow rate of pooled equine PL (single preparation) nebulized using an equine-specific nebulizer (Flexivent).

The effect of intramuscular atipamezole on head height and sedation scores in detomidine-sedated horses.

Objective: To assess the effect of two different doses of intramuscular atipamezole on head height (HH) in horses after sedation with detomidine.

Study Design: Randomized, blinded, triple crossover study.

Animals: Eight healthy adult horses.

Assessment of the circulating inflammatory mediator interleukin-8 in dogs with tracheal collapse.

Objective: Tracheal collapse (TC) is an obstructive respiratory disorder in dogs that can affect lifespan and quality of life. Systemic inflammation has been identified in other obstructive airway conditions in dogs and humans. We hypothesized a systemic pro-inflammatory state exists in dogs with TC.

Detection of canine obstructive nasal disease using infrared thermography: A pilot study.

Infrared thermography detects variations in heat signature and is utilized in other species to non-invasively identify respiratory disease. This study aimed to determine if infrared thermography could be used to detect nasal disease in dogs. Eight dogs presenting for nasal disease (ND group) and ten healthy control dogs (C group) were enrolled.

Ultrasound dilution cardiac output and echocardiography findings in anesthetized mature alpacas (Vicugna pacos) during normotension, hypotension and hypertension.

Alpacas (Vicugna pacos) have physiologic adaptations to live at high altitude. These adaptations may result in unexpected responses to changes in cardiac performance and blood pressure during general anesthesia. There are few studies evaluating cardiovascular variables in anesthetized alpacas.

Evaluation of Nasal Oxygen Administration at Various Flow Rates and Concentrations in Conscious, Standing Adult Horses.

This study evaluated the effects of various flow rates and fractions of oxygen on arterial blood gas parameters and on the fraction of inspired oxygen (FO) delivered to the distal trachea. Oxygen was administered to 6 healthy, conscious, standing, adult horses via single nasal cannula positioned within the nasopharynx. Three flow rates (5, 15, 30 L/min) and fractions of oxygen (21, 50, 100%) were delivered for 15 minutes, each in a randomized order.

Effects of a single dose of orally and rectally administered misoprostol in an in vivo endotoxemia model in healthy adult horses.

Objective: To describe misoprostol pharmacokinetics and anti-inflammatory efficacy when administered orally or per rectum in endotoxin-challenged horses.

Animals: 6 healthy geldings.

Procedures: A randomized 3-treatment crossover design was performed with a minimum washout period of 28 days between treatment arms.

The Effect of Inhaled Albuterol on PaO in Anesthetized Horses Receiving a FiO of 0.5 or >0.95.

Impairment of oxygen uptake can occur during general anesthesia in horses resulting in hypoxemia. Multiple treatments have been investigated for correction of hypoxemia with varying levels of success. In clinical trials, albuterol, a short-acting β adrenergic agonist, improved arterial oxygen partial pressure (PaO) in anesthetized horses unresponsive to adjustments in mechanical ventilation and administration of positive inotropic drugs.

Meningitis After Tooth Extraction and Sinus Lavage in a Horse.

A five-year-old Thoroughbred mare was evaluated because of chronic, malodorous, unilateral nasal discharge, and suspected maxillary cheek tooth root abscess. Skull radiographs revealed bilateral sinusitis suspected secondary to tooth root abscessation of 109 and 210. Following oral extraction of 109, bilateral conchofrontal sinus trephination and lavage; fever, tachycardia, and cervical stiffness developed.

Quantitative assessment of left ventricular volume and function by transthoracic and transesophageal echocardiography, ultrasound velocity dilution, and gated magnetic resonance imaging in healthy foals.

Objective: To compare measurements of left ventricular volume and function derived from 2-D transthoracic echocardiography (2DE), transesophageal echocardiography (TEE), and the ultrasound velocity dilution cardiac output method (UDCO) with those derived from cardiac MRI (cMRI) in healthy neonatal foals.

Animals: 6 healthy 1-week-old Standardbred foals.

Procedures: Foals were anesthetized and underwent 2DE, TEE, and cMRI; UDCO was performed simultaneously with 2DE.

Clinical Feasibility and Airway Deposition of Nebulized Voriconazole in Healthy Horses.

Voriconazole (VRC) is a potential treatment for pneumomycosis in horses. The objectives of this study were to determine if the delivery of Vfend using a Flexineb nebulizer produced clinically significant [VRC] in lower airways. The hypothesis was that [VRC] after delivery by nebulization would be greater in the pulmonary epithelial lining fluid than plasma.

Pharmacokinetics and pharmacodynamics of hydromorphone hydrochloride in healthy horses.

Objectives: To determine the physiologic and behavioral effects and pharmacokinetic profile of hydromorphone administered intravenously (IV) to horses.

Study Design: Prospective, randomized, crossover study.

Animals: A group of six adult healthy horses weighing 585.

Single-dose pharmacokinetics of orally and rectally administered misoprostol in adult horses.

Objective: To characterize the pharmacokinetics of a clinically relevant dose of misoprostol administered PO or per rectum (PR) to horses.

Animals: 8 healthy adult horses.

Procedures: In a randomized 3-way crossover design, horses received a single dose of misoprostol (5 μg/kg) administered PO (with horses fed and unfed) and PR, with a minimum 3-week washout period separating the experimental conditions.

Development of a perceived exertion scale for dogs using selected physiologic parameters.

Objective: To develop a perceived exertion scale for dogs exercising on a treadmill and to assess intra- and inter-observer variability.

Materials And Methods: Fifteen healthy client-owned dogs participated in paired exercise trials. Measurements of lactate, glucose, heart rate, temperature, respiratory rate and regional tissue oximetry were obtained before, during and after exercise.

Viral testing of 18 consecutive cases of equine serum hepatitis: A prospective study (2014-2018).

Background: Three flaviviruses (equine pegivirus [EPgV]; Theiler's disease-associated virus [TDAV]; non-primate hepacivirus [NPHV]) and equine parvovirus (EqPV-H) are present in equine blood products; the TDAV, NPHV, and EqPV-H have been suggested as potential causes of serum hepatitis.

Objective: To determine the prevalence of these viruses in horses with equine serum hepatitis.

Animals: Eighteen horses diagnosed with serum hepatitis, enrolled from US referral hospitals.

Cardiopulmonary effects and recovery characteristics of horses anesthetized with xylazine-ketamine with midazolam or propofol.

Objective: To evaluate cardiopulmonary and recovery characteristics of horses administered total intravenous anesthesia (TIVA) with xylazine and ketamine combined with midazolam or propofol.

Study Design: Randomized crossover study.

Animals: A group of eight adult horses, aged 7-22 years, weighing 493-740 kg.

Pulmonary disposition and pharmacokinetics of minocycline in adult horses.

OBJECTIVE To determine pharmacokinetics and pulmonary disposition of minocycline in horses after IV and intragastric administration. ANIMALS 7 healthy adult horses. PROCEDURES For experiment 1 of the study, minocycline was administered IV (2.

Effect of feeding on the pharmacokinetics of oral minocycline in healthy adult horses.

Minocycline is commonly used to treat bacterial and rickettsial infections in adult horses but limited information exists regarding the impact of feeding on its oral bioavailability. This study's objective was to compare the pharmacokinetics of minocycline after administration of a single oral dose in horses with feed withheld and with feed provided at the time of drug administration. Six healthy adult horses were administered intravenous (2.

Assessment of agreement among diplomates of the American College of Veterinary Anesthesia and Analgesia for scoring the recovery of horses from anesthesia by use of subjective grading scales and development of a system for evaluation of the recovery of horses from anesthesia by use of accelerometry.

OBJECTIVE To evaluate agreement among diplomates of the American College of Veterinary Anesthesia and Analgesia for scores determined by use of a simple descriptive scale (SDS) or a composite grading scale (CGS) for quality of recovery of horses from anesthesia and to investigate use of 3-axis accelerometry (3AA) for objective evaluation of recovery. ANIMALS 12 healthy adult horses. PROCEDURES Horses were fitted with a 3AA device and then were anesthetized.

Comparison of jugular and transverse facial venous sinus blood analytes in healthy and critically ill adult horses.

Objective: To compare blood gas, electrolyte, and metabolic analysis results between blood obtained by jugular and transverse facial venous sinus (TFVS) venipuncture in healthy adult horses and sick adult horses presented for emergency evaluation.

Design: Prospective, experimental study, from June 2012 to October 2013.

Setting: Large animal university teaching hospital.

Use of manual alveolar recruitment maneuvers to eliminate atelectasis artifacts identified during thoracic computed tomography of healthy neonatal foals.

OBJECTIVE To evaluate use of single manual alveolar recruitment maneuvers (ARMs) to eliminate atelectasis during CT of anesthetized foals. ANIMALS 6 neonatal Standardbred foals. PROCEDURES Thoracic CT was performed on spontaneously breathing anesthetized foals positioned in sternal (n = 3) or dorsal (3) recumbency when foals were 24 to 36 hours old (time 1), 4 days old (time 2), 7 days old (time 3), and 10 days old (time 4).

Effects of intravenous terbutaline on heart rate, arterial pressure and blood gases in anesthetized horses breathing air.

Objective: To investigate the effects of intravenous (IV) administration of terbutaline on PaO, PaCO, pH, heart rate (HR) and arterial pressures in healthy, laterally recumbent horses breathing ambient air under total intravenous anesthesia (TIVA).

Study Design: Prospective experimental study.

Animals: Eight healthy adult horses were enrolled.

Physiological and biochemical variables in captive tigers (Panthera tigris) immobilised with dexmedetomidine and ketamine or dexmedetomidine, midazolam and ketamine.

Physiological and biochemical variables in captive tigers (Panthera tigris) immobilised with dexmedetomidine and ketamine or dexmedetomidine, midazolam and ketamine were evaluated. Thirty tigers received either dexmedetomidine (0.025 mg/kg) and ketamine (3 mg/kg) (group DK) or dexmedetomidine (0.