A torção uterina é o movimento rotacional do útero sobre o seu eixo longitudinal, sendo mais frequente na espécie bovina do que em qualquer outra. Como o desempenho reprodutivo reflete diretamente nas taxas reprodutivas de um rebanho, as distocias são alvos de estudos, já que resultam em prejuízos econômicos para o produtor. A torção uterina resulta em distocias e sua etiopatogenia ainda não está bem elucidada, mas estão entre os fatores de riscos: movimento fetal excessivo nos estágios iniciais do parto, excesso de peso fetal, abdômen mais profundo em algumas raças, idade e número de partos, causando flacidez da musculatura e ligamentos uterinos. O diagnóstico é baseado no exame obstétrico, pela palpação vaginal e/ou transretal. O prognóstico depende do grau da rotação, tempo de evolução e das sequelas sobre o útero e o feto. Geralmente sendo necessária a intervenção veterinária, podendo ser corrigida apenas com manobras obstétricas e em casos mais graves necessita de cesariana. O presente trabalho objetiva descrever o caso de uma vaca Nelore com aproximadamente dois anos e meio de idade, encaminhada ao Hospital Veterinário de Uberaba, em trabalho de parto e torção uterina. Após a palpação transvaginal e a inviabilidade de sucesso somente com manobras obstétricas o animal foi submetido à cesariana. Vários casos de torção uterina em bovinos são descritos em raças europeias; porém, pouco se conhece desse tipo de patologia em animais da raça Nelore.
Background: Primary hyperlipidemia is a condition that affects some specific breeds. It has been previously described in Miniature Shnauzer, Beagles, Shetland Shepdog and West Highland White Terrier. There are no reports of primary hyperlipidemia in Maltese dogs. It is a hereditary disorder of lipoprotein metabolism. The etiology is unknown and may be related to a genetic problem in lipoprotein lipase or to the absence of apaprotein CII. Clinical signs include spontaneous arterosclerosis, retinal lipemia, cutaneous xanthomas, abdominal pain, lethargy, vomiting and / or diarrhea. Neurological manifestations such as seizures and behavioral changes may also occur. The aim of this report is to describe a case of reactive seizures due to hyperlipidemia in a dog.Case: A 5-year-old male Maltese dog was admitted with a history of seizures. Hypertension and abdominal distension with large amounts of intestinal gases were found in general physical examination. Neurological examination revealed impaired nasal septum sensory perception, which was slightly bilaterally reduced, and pain on cervical palpation and in the brachial plexus region. Based on history and clinical examination, it was possible to locate the lesion in the thalamocortical region and to suspect idiopathic epilepsy, reactive seizures, and symptomatic epilepsy due to meningoencephalitis of unknown origin. The diagnosis of primary hyperlipidemia was made by exclusion with the aid of laboratory tests and ultrasound. After the establishment of a fat restriction diet, bezafibrate, phenobarbital, and omega-3 supplementation, the animal improved significantly with the reduction of epileptic seizures.Discussion: The initial clinical suspicion was hyperadrenocorticism as the primary cause of hyperlipidemia. This suspicion was based on the presence of polyphagia, polydipsia, polyuria and abdominal distension, together with laboratory results of thrombocytosis, increased ALT and AF, and hyposenuria; but ultrasound images and ACTH stimulation test ruled out this differential diagnosis. Hypothyroidism was also ruled out since LDL values were normal and the animal was extremely active. Regarding nephrotic syndrome, it was also excluded for some alterations would be present, such as severe proteinuria, cholesterol reduction and hypoalbuminemia. As for diabetes mellitus, it was discarded because of the dog’s young age and due to the absence of suggestive clinical signs. The suspicion of primary hyperlipidemia was based on increased levels of triglycerides, and the presumptive diagnosis was of reactive seizures due to hyperlipidemia. It is essential, when treating hyperlipidemia, to readjust to a low-calorie diet with fat concentration below 8% and protein level above 18%. Generally, these restricted diets are for life. Omega-3 supplementation can be performed to help maintain low levels of triglycerides. Drug therapy is usually carried out with bezafibrate, which is used in human medicine as treatment for hypertriglyceridemia, and has showed good results in the control of hypertriglyceridemia and hypercholesterolemia in dogs with primary and secondary hyperlipidemia. Six months after the beginning of the treatment, the animal no longer presented abdominal distension and pain, cholesterol values and its fractions were controlled, as well as triglycerides. Seizures were also under control. Therefore, hyperlipidemia is an important differential diagnosis in cases of patients presenting seizures, especially when dealing with young animals showing signs of metabolic diseases.
The effects of a new intravenous electrolyte solution for veterinary therapy on electrolyte and acid-base balances of horses were evaluated, assessing the potential of the use of this solution as a rational alternative in fluid therapy. Eight healthy adult horses, including 4 males and 4 females, received two treatments in a cross-over design: isotonic saline solution (IS) and a test solution
Background: Mucopolysaccharidoses (MPS) are a group of rare illnesses caused by deficient activity of enzymes required for degradation of glycosaminoglycans (GAGs). Each type of MPS is caused by mutations in one of the genes that encode the 11 acid hydrolases involved in this degradation process, which are present in the lysosomes. Progressive accumulation of GAGs in the lysosomes result in cellular dysfunction and multisystemic clinical signs, with consequent decrease in quality of life and lifespan of the affected patients. The objective of the present work is to report a case of MPS type I in a dog.Case: A mixed-breed male dog of approximately 2-month-old weighing 2.5 kg was referred to Hospital Veterinário de Uberaba with a distended abdomen. At the clinical examination, the patient exhibited a regular nutritional status, pale mucous membranes, 7% dehydration, an arterial pulse rate of 120 beats per minute, a respiratory rate of 40 breaths per minute, and a heart rate of 120 beats per minute. There were increased abdominal volume and tension, and hepatosplenomegaly. The abdominal percussion exam produced a dull tone. Additional findings included muscular atrophy, increased volume in the metaphyseal areas of the thoracic and pelvic limbs, valgus limb deformity in the thoracic limbs, and instability of the hip joint. Radiographic examination revealed a series of bone alterations such as reduced vertebral bodies, a generalized decrease in radiopacity, thin cortical areas in long bones, narrowing of the pelvic canal, and marked deformation and irregularities in acetabular and epiphyseal (both proximal and distal) areas of the femurs and tibias. Ankylosis of the tibiotarsal and tarsometatarsal joints was also observed. There was also loss of trabecular structure and irregularities on the surfaces of all epiphyses of the bones, epiphyseal lines markedly open, and bones that were shorter and thicker than normal. The suspected diagnoses were pseudoachondroplasia and mucopolysaccharidosis. In view of the clinical and radiographic findings, tests were performed to investigate the clinical suspicion of MPS. Consequently, qualitative and quantitative tests of GAGs in the urine, as well as a blood enzymatic essay, were requested; results confirmed the diagnosis of MPS type I. Intensive treatment allowed the patient to reach adulthood. Whenever new clinical signs emerged, they were treated palliatively. As the disease became more severe, the patient died at the age of 3 years.Discussion: Mucopolysaccharidosis type I is a rare disease that exhibits variable clinical signs and for which there is no specific treatment in dogs; these characteristics hinder diagnosis and treatment of patients as the one described in this report. The major clinical signs observed in this case are in agreement with those reported in the literature, according to which the disease can cause severe alterations such as bone defects, increased volume and deformities in the joints of the limbs, corneal opacity, and enlargement of abdominal organs such as the liver and spleen. In considering diagnostic methods for MPS, the main screening test is quantification of GAGs in the urine. The confirmatory test for MPS consists of analysis of the activity of specific lysosomal enzymes in a blood sample; this test allowed the establishment of a diagnosis in this case. Enzyme replacement therapy, in which a recombinant enzyme is used, have yielded good results in humans and dogs. However, this treatment does not cure the disease – it only attenuates the clinical signs and enables the patient to reach adulthood. Access to enzyme replacement therapy was not possible in the present case. As a conclusion, MPS should be included in the differential diagnosis of developmental diseases in puppies. This highlights the importance of further studies and reports on this disease.
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