Vascular resistance determination with doppler ultrasound in canine and feline disease

Consultable des del TDXTítol obtingut de la portada digitalitzadaThe kidneys and the eyes are sensitive to blood pressure changes. The kidney participates in blood pressure control and renal disease can cause arterial hypertension and be aggravated by hypertension, entering a vicious circle between both alterations. In human patients with hypertension, increased vascular resistance is observed in renal and ocular arteries. This increased vascular resistance can be measured with Doppler ultrasound by calculating resistive and pulsatility indices. Increased renal and ocular indices have been observed in human patients with hypertension, and a correlation between the indices and the systolic blood pressure and hypertensive damage has also been reported. The indices values in normal animals vary slightly among the studies and the technique, the operator and, the administration of sedative or anaesthetic drugs can cause variation of the indices. Then, obtaining your own reference values is necessary. The aim of this study is to determine if increased vascular resistance is found in dogs and cats with diseases that can cause hypertension and whether they are related with arterial blood pressure. Values were obtained in non-sedated healthy animals and the effect of a sedative protocol appropriated to be used in ill animals, if necessary, was evaluated. Then renal and ocular resistive and pulsatility indices and systolic blood pressure were obtained in dogs and cats with diseases that can cause hypertension, such as renal disease, diabetes mellitus, hyperadrenocorticism, and hepatic disease. Significant increased renal indices were found in the disease groups in comparison to healthy animals. Correlations with blood parameters and the indices were also found in different diseases. Correlation with blood pressure was not found in any of the groups. In conclusion, increased peripheral vascular resistance was found in the kidney in animals with these diseases, as well as certain degree of relationship with the severity of the disease (evaluated by means of blood parameters). However, no correlation with systolic blood pressure was observed

Diagnóstico de shunt portosistémico mediante gammagrafía per-rectal y trans-esplénica en el perro

La gammagrafía permite el diagnóstico de shunt portosistémico de manera rápida y no invasiva mediante la técnica per-rectal o la trans-esplénica. En este estudio se describen y comparan los resultados obtenidos en el perro mediante las dos técnicas. La trans-esplénica se considera más adecuada debio a la obtención de imágenes de mayor calidad.

Computed tomography of the coelomic cavity in healthy veiled chameleons (Chamaeleo calyptratus) and panther chameleons (Furcifer pardalis)

Veiled chameleon (Chamaeleo calyptratus) and panther chameleon (Furcifer pardalis) are two of the most popular pet chameleons, and consequently, these species are frequently evaluated in veterinary practices. According to our review of the literature, normal computed tomography (CT) anatomy of these lizards has not been previously described. The purposes of this prospective study were to describe the normal CT anatomy of the coelomic organs in healthy patients and to provide normal reference values in these species. Seventeen clinically healthy veiled chameleons and 15 clinically healthy panther chameleons were included. All CT studies were performed with the chameleons under light anesthesia and positioned in sternal recumbency. Studies were performed with a 16-slice helical CT scanner with a slice thickness of 0.625 mm. The authors recorded qualitative and quantitative CT characteristics of the coelomic structures. Macroscopic cross-sectional anatomy was performed for comparison of the CT findings. Heart, lungs, liver, including caudal vena cava, hepatic vessels, gallbladder, esophagus, stomach, intestines, gonads, fat bodies, kidneys, and urinary bladder could be visualized with CT. The spleen, pancreas, and adrenal glands could not be identified. This study provides a guide to the normal cross-sectional and computed tomographic anatomy of the coelomic cavity in veiled and panther chameleons. Our results could be used as a reference for future research studies or comparison of clinically ill patients

Paradoxical Vestibular Syndrome Caused by a Presumptive Cerebellar Infarction in a Rabbit

Altres ajuts: Acord transformatiu CRUE-CSICA 6-year-old, female spayed rabbit (Oryctolagus cuniculus) presented with right paradoxical vestibular signs. Magnetic resonance imaging was performed and findings were consistent with an ischemic infarct of the cerebellum. The patient improved gradually and was free of clinical signs at the time this article was written. To the authors' knowledge this is the first case report of a paradoxical vestibular syndrome in a rabbit secondary to a presumptive ischemic infarct. Strokes should be included in the differential diagnosis of central vestibular syndrome in rabbits. Paradoxical Vestibular Syndrome Caused by a Presumptive Cerebellar Infarction in a Rabbit García, R. (Servei de Neurologia. Fundació Hospital Clínic Veterinari. Campus Universitat Autònoma de Barcelona