Ex vivo comparison of one-layer versus two-layer closures in end-to-end anastomoses in normal equine descending colon.

Objective: The aim of the study was to evaluate time to closure, bursting pressures and luminal diameters of a single and double-layer end-to-end anastomoses in normal equine descending colon.

Study Design: Experimental study.

Sample Population: Eight adult horses.

Acute myeloid leukemia-M1 in a horse with neurologic signs and necrotizing enterocolitis.

An 18-y-old American Saddlebred mare was admitted with fever and acute onset of neurologic signs including grade 3 of 5 ataxia, difficulty in prehension, and dull mentation. Because of financial restraints, desired testing could not be performed; the horse's condition declined despite supportive treatment, and euthanasia was elected. Postmortem examination revealed petechiae and ecchymoses in the meninges and neuroparenchyma of the encephalon.

Gait Changes Vary among Horses with Naturally Occurring Osteoarthritis Following Intra-articular Administration of Autologous Platelet-Rich Plasma.

Mechanisms to reduce lameness associated with osteoarthritis (OA) are vital to equine health and performance. This study was designed to quantify response to autologous, intra-articular platelet-rich plasma (PRP) in horses with OA. Kinetic gait analysis was performed on 12 horses with unilateral forelimb lameness and OA in the same limb before and after intra-articular anesthesia (IAA).

Intestinal bacterial overgrowth includes potential pathogens in the carbohydrate overload models of equine acute laminitis.

Carbohydrate overload models of equine acute laminitis are used to study the development of lameness. It is hypothesized that a diet-induced shift in cecal bacterial communities contributes to the development of the pro-inflammatory state that progresses to laminar failure. It is proposed that vasoactive amines, protease activators and endotoxin, all bacterial derived bioactive metabolites, play a role in disease development.

Clenbuterol toxicosis in three Quarter Horse racehorses after administration of a compounded product.

Case Description: 3 Quarter Horse racehorses were examined for suspected clenbuterol overdose 12 to 24 hours after administration by mouth of a compounded clenbuterol product.

Clinical Findings: All horses developed sinus tachycardia, muscle tremors, hyperhidrosis, and colic. Abnormalities on serum biochemical analysis included hyperglycemia, azotemia, and high creatine kinase activity.

Detection and comparison of nitric oxide in clinically healthy horses and those with naturally acquired strangulating large colon volvulus.

The objective of the study was to determine whether nitric oxide (NO) is present in clinically healthy horses (control) under basal conditions, and if it increases secondary to naturally acquired strangulating large colon volvulus (affected). Eleven affected horses and 10 controls were studied. Jugular venous blood, abdominal fluid, and urine were collected.

Abomasal ulceration and abomaso-pleural fistula in an 11-month-old beefmaster bull.

An 11-month-old, beefmaster bull presented with anorexia and signs of respiratory disease. Physical examination, thoracic ultrasonography and radiography, and pleural fluid analysis indicated pericarditis and septic neutrophilic pleuropneumonia. Postmortem findings were abomasal adherence to the diaphragm, a fibrotic fistulous tract connecting the abomasum and pleural cavity, granulomatous abomasitis, granulomatous pericarditis, and fibrinonecrotic pleuritis.