Anna Laeticia da Trindade Barbosa

Teste de biocompatibilidade e resistência de membranas de látex em cães

The natural latex extracted of the Rubber Tree, has properties to induce characteristics of tissue vascularization and regeneration that had been comproved in different species and tissues. This study tested the biocompatibility of three latex membranes in six dogs. Two of these membranes have not been used yet, while one of them has been tested in previous studies. Membranes were implanted between the cutaneous and the rectum of the abdomen muscles by a surgical procedure. In a forty five days period, the animals were evaluated for pain, clinical and macroscopic alterations of the membranes and, after the membranes were removed in order to submit them to histological exams. Mechanical traction tests were realized in control membranes to measure deformation and resistance. The results indicated that membranes are compatible, and able to substitute the muscular sheath in dogs, excepting membrane 2, because of it rejecting characteristics.

Diagnóstico de criptococose canina pela citologia aspirativa por agulha fina

This paper aimed to described a 1.5 year-old Labrador male, diagnosed with cryptococcosis using fine-needle aspiration cytology (FNAC). The dog was showing signs of depression and hyporexia. Peripheral lymph nodes and a mass situated between the submandibular lymph nodes were aspirated. The cytology showed yeast-like structures resembling Cryptococcus sp. in all samples examined. These findings were confirmed by culture (C. neoformans, serotype D). The FNAC technique allowed a quick, safe and easy diagnosis in this case.

Luxação coxofemoral traumática em cães e gatos: estudo retrospectivo (1997-2006)

The traumatic coxofemoral luxations are important orthopedics injuries in dogs and cats due to their great frequency. The main causes are the automobilistic accidents and craniodorsal appearance is the most frequent. This injury can affect any breed, sex and age, however, adult animals are most frequently involved. Close reduction is the first choice of treatment, but at some circumstances the use of open/surgical methods are necessary. This study aims to evaluate the incidence, predisposition, etiology and results of treatments of traumatic hip luxation at the Santa Maria Federal University Veterinary Hospital. For this, a retrospective study of surgical service was made between 1997 and 2006 in this hospital. It was observed a high incidence of traumatic luxations (75.8%), and the most frequent cause was hit t by a car trauma (58.6%), followed by falls (17.3%), unknown agents (17.2%) and fights (6.9%). The canine/feline proportion was 58/2, with the males being the most affected in both species: 65.5% at dogs and 100% at cats. The most predicts breed involved was the Poodle (44.8%) and the mixed breed dogs (20.7%). The treatments options used were suture of capsule (18.3%), transacetabular pinnig (56.7%) and femoral head and neck excision (25%). The success rate was 71.1% in the first two techniques, proving itself efficient in the traumatic coxofemoral luxation reduction, thus, femoral head and neck excision are recommended in complications and impossibility.

Padronização e teste da plataforma de força em padrão ortostático em cães

The purpose of this work was to standardize and test the use of the force platform in ortostatic pattern in dogs, to approach the support assessment and weight distribution in the limbs, allowing the visualization of the transfer possibility in surgical orthopedics patients with hip diseases. Clinical evaluation - lameness degrees and radiografic exam - and biomechanical evaluation were accomplished through the force plate for static collection of 16 surgical orthopedics patients with hip diseases in hospital routine (control-group) and 6 healthy dogs without a report of orthopedics problems (treatment-group). The control-group for outline allowed an appropriate methodology at static collection in dogs. The platform in ortostatic pattern was efficient and a more sensitive and objective parameter than the others, being of appropriate use in the evaluation of an orthopedic patient.

Recuperação funcional coxofemoral pós-operatória em cães: estudo clínico, radiográfico e biomecânico

A articulacao coxofemoral em caes tem sido, ao longo dos anos, a mais frequentemente lesionada, seja por traumatismo externo ou doencas degenerativas. Muitos estudos tem sido realizados na avaliacao de novas tecnicas cirurgicas, porem, pouco ha descrito sobre avaliacoes em longo prazo. O objetivo deste trabalho foi avaliar a recuperacao dos pacientes com afeccoes coxofemorais de resolucao cirurgica, por meio de parâmetros clinico e biomecânico por coleta ortostatica. Para isso, foi realizada avaliacao clinica (utilizando-se escala de claudicacao e perimetria da coxa), exame radiografico e plataforma de forca por coleta estatica de 21 caes operados da articulacao coxofemoral com diagnostico de luxacao coxo-femoral traumatica, fratura de cabeca e colo femorais ou necrose asseptica da cabeca femoral entre 1998 e 2007. A avaliacao da recuperacao dos pacientes por meio da associacao dos parâmetros clinico, radiografico e biomecânico no padrao ortostatico em longo prazo, mostrou-se completa e eficiente. A recuperacao dos animais foi classificada entre excelente e muito boa, demonstrando que a maioria (80,0%) esta com a funcao do membro afetado restabelecida, com algumas variacoes individuais.

Células-tronco mononucleares associadas ao plasma rico em plaquetas na consolidação de falha óssea no cão. Estudo piloto

A padronizacao de tecnicas e o teste da associacao do Plasma Rico em Plaquetas (PRP) e das Celulas-Tronco Mononucleares (CTMs) na consolidacao de falhas osseas corticais, por meio de avaliacao clinica, biomecânica, radiologica e histologica, e avaliada em um estudo piloto. Foram utilizados seis caes adultos, femeas, sem raca definida, pesando entre 5 e 10kg, separados por sorteio aleatorio em seis tratamentos. Foi confeccionada uma falha eliptica de 1,0x0,4cm na cortical medial diafisaria da tibia direita de cada animal, sendo preenchida de acordo com o tratamento proposto. No cao I, a falha foi preenchida com solucao fisiologica (SF); no II, com o PRP; no III, com a fracao total das celulas mononucleares (FTCM); no IV, com a fracao vascular estromal (FVE); no V, com o PRP associado a FTCM; no VI, com a associacao PRP e FVE. Foram realizadas avaliacoes: clinicas, diariamente; dos graus de claudicacao, semanalmente; radiologica e perimetria da coxa, antes, no pos-operatorio imediato, aos 7, 14, 21 e 30 dias; biomecânica, antes do procedimento, aos 10, 20 e 30 dias; e biopsias, aos 15 e 30 dias. A FTCM obteve uma contagem e viabilidade media de 2,0x108cel. e 90%, respectivamente, enquanto a FVE obteve 3x106cel. e 50%. O PRP concentrou, em media, sete vezes o numero inicial de plaquetas do sangue total, de 250.000 µl-1 plaquetas no sangue total para 1.750.000 µl-1 plaquetas no PRP. Obteve-se padronizacao adequada de tecnicas, possibilitando o teste da associacao entre as celulas-tronco mononucleares (CTMs) e o plasma rico em plaquetas (PRP), assim como seu uso isolado, no reparo de falhas osseas corticais, indicando a possibilidade de a associacao FTCM e PRP ser o melhor tratamento.