1989) Platelet function and structure in myeloproliferative disease, myelodysplastic syndrome, and secondary thrombocytosis. IDIOPATHIC laryngeal hemiplegia in horses is a condition which is known worldwide and which is caused by neurogenic atrophy of the intrinsic laryngeal muscles supplied by the recurrent laryngeal nerve. This short communication describes a case of laryngeal hemiplegia in a ram.An 18-month-old Rasa Aragonesa ram was admitted to the Veterinary Hospital of Zaragoza University with a history of weight loss, dyspnoea and coughing. The animal came from a flock of 2000 ewes and 40 rams which were part of a programme for genetic improvement. Some of the lambs which were born were transferred to other flocks, where the ewe lambs were used to replace ewes and the males were used for breeding. Antiparasitic products were administered every six months and the ewes were vaccinated against Escherichia coli and Clostridium perfringens three weeks before lambing.The lambs and ewes grazed together until the lambs were approximately 40 days old. The lambs were then weaned and housed separately until three months of age; during this time FIG 1: Larynx of a ram with left laryngeal hemiplegia (a) closed, with the left arytenoid cartilage atrophic, and (b) open, with the left arytenoid cartilage displaced towards the midlinethey were fed a commercial concentrate ration, straw, mineral blocks and water ad libitum. Between three and six months of age, the replacement group grazed pasture and was fed the concentrate ration, and was mixed with the adult group grazing on stubble fields from July to October/November. The ram had been selected for breeding and, until 16 months old, its growth had been normal and no other animals from the flock showed similar clinical signs.On presentation the ram was in poor body condition (score 1.5, range 1 to 5), weighing 55 kg, with respiratory distress. A wet cough was observed but there was no nasal discharge. When the animal was forced to exercise, the coughing became more persistent. Its appetite, prehension, mastication and swallowing were normal and it did not have a fever during hospitalisation.The ram was subjected to a thorough clinical examination with particular attention paid to the respiratory evaluation. There was evidence of abnormal lung sounds on auscultation, which was limited to increased lung sounds on the right side of the chest accompanied by pleuritic friction sounds. The larynx area was depressed and the retropharyngeal lymph nodes on the left side were slightly enlarged. An endoscopic examination was performed using a flexible fibreoptic endoscope (110 cm long, 9 mm diameter) equipped with a cold light source which was inserted through the mouth. The animal was sedated with 0*2 mg/litre xylazine (Rompun; Bayer) intravenously and placed in a special restraint system for sheep to protect the endoscope.The endoscopy was also used for bronchoalveolar lavage, with approximately 40 ml of sterile saline solution infused through the catheter. Some of this fluid (3 m...
Ninety-three unhealthy dogs (including some with diabetes mellitus or insulinoma) of different ages, sex and breeds were divided into 10 groups according to their pathology. Serum fructosamine concentrations were determined using a commercial colorimetric nitroblue tetrazolium method. Diabetic dogs had the highest fructosamine concentrations (454.85 +/- 149.34 micromol/L). Dogs with insulinoma had significantly lower fructosamine concentrations (202.80 +/- 31.22 micromol/L), similar to those with leishmaniosis (202.83 +/- 99.83 micromol/L). Fructosamine concentrations in non-healthy dogs, except those with diabetes mellitus, insulinoma or leishmaniosis, were within the reference limits previously reported.
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