PESQUISA VETERINÁRIA BRASILEIRA

Abstract in English:

The purpose of this study was to evaluate the effects of lumbar myelography on subarachnoid pressure, cardiorespiratory parameters and pressure-volume index in sheep. Eight sheep were evaluated. The animals were submitted to puncture of the cisterna magna for monitoring of subarachnoid pressure (SaP). Lumbar myelography was performed through applying Iohexol (0.4mL/kg). ToC, PAS, PAD, MAP, InspISO, FeISO, SaP and CPP were recorded immediately after anesthetic stabilization (M0), during lumbar puncture (M1), and two, four and six minutes after contrast application (M2, M3 and M4, respectively). Blood pressure initially increased, then decreased, returning to basal level, similarly observed for InspISo and FeISo. The SaP rose initially thereafter remaining stable. Despite of the effect on subarachnoid pressure, lumbar myelography can be considered safe in sheep.

• Lumbar myelography subarachnoid pressure cardiorespiratory parameter sheep neuroradiology intercranial pressure ovine pressure-volume index

Abstract in Portuguese:

O objetivo foi avaliar os efeitos da mielografia lombar na pressão subaracnóidea, parâmetros cardiorrespiratórios e índice pressão-volume em ovinos. Oito ovelhas foram avaliadas. Os animais foram submetidos à punção da cisterna magna para monitoramento da pressão subaracnoidea (SaP). A mielografia lombar foi realizada com a aplicação de Iohexol (0,4mL/kg). Os momentos estudados foram: imediatamente após a estabilização anestésica (M0), durante a punção lombar (M1), dois, quatro e seis minutos após a aplicação do contraste (M2, M3 e M4, respectivamente), para avaliar as seguintes variáveis: ToC, PAS, PAD, MAP, InspISO, FeISO, Sap e CPP. A pressão arterial aumentou inicialmente, depois diminuiu, retornando aos valores iniciais, padrão também observado para o InspISo e o FeISo. O SaP subiu inicialmente, posteriormente, permanecendo estável. A mielografia lombar, apesar de influenciar a pressão subaracnoidea, pode ser considerada segura em ovinos.

• Mielografia lombar pressão subaracnóidea cardiorrespiração ovelhas neurorradiologia pressão intracraniana ovinos índice volume-pressão

Abstract in English:

ABSTRACT.- Minto B.W., Nagatsuyu C.E., Teixeira C.R., Zanuzzo F.S., Candido T.D., Diogo L.M.I. & Macedo A.S. 2017. Minimally invasive hysterectomy in Coatis (Nasua nasua). Pesquisa Veterinária Brasileira 37(6):627-629. Departamento de Clínica e Cirurgia Veterinária, Faculdade de Ciências Agrárias e Veterinárias, Universidade Estadual Paulista, Via de Acesso Prof. Paulo Donato Castellane s/n, Vila Nova Aparecida, Jaboticabal, SP 14884-900, Brazil. E-mail: brunobtu@yahoo.com.br Some wildlife species, such as coatis, have a high degree of adaptability to adverse conditions, such as fragmented urban forests, increasingly common on the world stage. The increase in the number of these mesopredators causes drastic changes in the communities of smaller predators, interferes with reproductive success of trees, as well as becoming a form of exchange between domestic and wild areas, favoring the transmission of zoonosis and increasing the occurrence of attacks to animals or people. This report describes the use of minimally invasive hysterectomy in two individuals of the species Nasua nasua, which can be accomplished through the use of hook technique, commonly used to castrate dogs and cats. The small incision and healing speed of incised tissues are fundamental in wild life management since the postoperative care is limited by the behavior of these animals. This technique proved to be effective and can greatly reduce the morbidity of this procedure in coatis.

• Hysterectomy Coatis Nasua nasua quatis histerectomia

Abstract in Portuguese:

RESUMO.- Minto B.W., Nagatsuyu C.E., Teixeira C.R., Zanuzzo F.S., Candido T.D., Diogo L.M.I. & Macedo A.S. 2017. Minimally invasive hysterectomy in Coatis (Nasua nasua). [Histerectomia minimamente invasiva em Quatis (Nasua nasua).] Pesquisa Veterinária Brasileira 37(6):627-629. Departamento de Clínica e Cirurgia Veterinária, Faculdade de Ciências Agrárias e Veterinárias, Universidade Estadual Paulista, Via de Acesso Prof. Paulo Donato Castellane s/n, Vila Nova Aparecida, Jaboticabal, SP 14884-900, Brazil. E-mail: brunobtu@yahoo.com.br Algumas espécies selvagens, como os quatis, possuem alto grau de adaptabilidade a condições adversas, como as de florestas urbanas fragmentadas, cada vez mais comuns no cenário mundial. O aumento do número destes mesopredadores causa alterações drásticas nas comunidades de pequenos predadores, interfere no sucesso reprodutivo de árvores, além de se tornar uma forma de intercâmbio entre áreas domésticas e selvagens, facilitando a veiculação de zoonoses e aumentando a ocorrência de ataques a animais ou pessoas. O presente relato descreve a utilização da histerectomia minimamente invasiva em dois indivíduos da espécie Nasua nasua, que pode ser realizada por meio da utilização da técnica do gancho, comumente utilizada para a castração de cães e gatos. A incisão reduzida e a rapidez da cicatrização dos tecidos incisados são fundamentais no manejo de espécies selvagens, visto que os cuidados pós-operatórios são limitados pelo comportamento desses animais. Esta técnica mostrou-se eficaz e pode reduzir sobremaneira a morbidade desse procedimento em quatis.

Abstract in English:

The aim of this study is to describe the arteries of the thoracic limb of paca (Cuniculos paca Linanaeus, 1766) by dissecting the region. We used 10 adult paca, males and females, weighting between five to 10 kg obtained from the breeding group at the Wild Animals Sector of FCAV, Unesp, Jaboticabal-SP. The animals were injected with latex by the left common carotid artery to fill and stain all the arterial system, followed by the fixation in 10% formaldehyde and preservation in 30% saline solution for anatomical dissection of the main arteries of the aortic arch, arm, forearm, identifying the origin and distribution of these vessels. The results were photodocumented and discussed based on literature about domestic animals and wild rodent. In general, the arteries of the thoracic limb of paca are similar to the domestic carnivores, rat and guinea pig.

• Arteries thoracic limb paca Cuniculus paca anatomy rodent wild

Abstract in Portuguese:

Objetivou-se descrever as artérias do membro torácico da paca (Cuniculos paca Linanaeus, 1766), mediante a dissecação da região. Para tanto, foram utilizadas 10 pacas adultas, machos ou fêmeas, pesando entre cinco e 10 kg do plantel de pacas do setor de Animais Silvestres da FCAV, Unesp, Jaboticabal-SP. Nos animais, injetou-se látex pela artéria carótida comum esquerda para preencher e corar todo o sistema arterial, seguido pela fixação em formaldeído a 10% e conservação em solução salina a 30% para dissecação anatômica das principais artérias do arco aórtico, braço e antebraço, identificando-se a origem e distribuição destes vasos. Os resultados foram fotodocumentados e discutidos com base na literatura sobre os animais domésticos, e roedores selvagens. De forma geral, as artérias do membro torácico da paca, assemelham-se com as dos carnívoros domésticos, do rato e da cobaia.

• Artérias membro torácico paca Cuniculus paca anatomia roedor selvagem

Abstract in English:

ABSTRACT.- Leal L.M., De Sá R.M., De Oliveira F.S., Sasahara T.H.C., Minto B.W. & Machado M.R.F. 2015. [The myology of the pelvic limb of paca (Cuniculus paca Linnaeus, 1766).] Miologia do membro pélvico da paca (Cuniculus paca Linnaeus, 1766). Pesquisa Veterinária Brasileira 35(Supl.1):21-26. Departamento de Morfologia e Fisiologia Animal, Universidade Estadual Paulista, Via de Acesso Professor Paulo Donato Castellane s/n, Jaboticabal, SP 14884-900, Brazil. E-mail: leonardo.vet@hotmail.com This study aimed to describe the muscles of the pelvic limb of paca (Cuniculus paca Linnaeus, 1766) through anatomical dissection of this region. We used ten adult pacas, males and females, weighing 5 to 10 kg from the group of pacas at the sector of wild animals of FCAV, Unesp-Jaboticabal, SP. The animals were fixed with 10% formaldehyde and preserved in 30% saline solution for anatomical dissection of the pelvis, thigh and leg musculature, with identification of the origin and the insertion of each muscle. Photos were taken and the results were discussed based on the domestic animal, rat and guinea pig literature. In general, the paca musculature resembles the one of domestic animals and other rodents; but some variance in origin and insertion of each muscle and in the fusion of some muscular groups of the bellies was observed.

• Myology pelvic limb paca Cuniculus paca miologia membro pélvico

Abstract in Portuguese:

RESUMO.- Leal L.M., De Sá R.M., De Oliveira F.S., Sasahara T.H.C., Minto B.W. & Machado M.R.F. 2015. [The myology of the pelvic limb of paca (Cuniculus paca Linnaeus, 1766).] Miologia do membro pélvico da paca (Cuniculus paca Linnaeus, 1766). Pesquisa Veterinária Brasileira 35(Supl.1):21-26. Departamento de Morfologia e Fisiologia Animal, Universidade Estadual Paulista, Via de Acesso Professor Paulo Donato Castellane s/n, Jaboticabal, SP 14884-900, Brazil. E-mail: leonardo.vet@hotmail.com Objetivam-se descrever os músculos do membro pélvico da paca (Cuniculus paca Linnaeus, 1766), mediante dissecção anatômica dessa região. Foram utilizadas dez Cuniculus paca adultas, machos e fêmeas, pesando entre cinco e 10 kg do plantel de pacas do setor de Animais Silvestres da FCAV, Unesp, Jaboticabal/SP. Os animais foram fixados em formaldeído 10% e conservados em solução salina a 30% para dissecação anatômica da musculatura da pelve, coxa e perna, identificando-se a origem e inserção de cada músculo. Os resultados foram fotodocumentados e discutidos com base na literatura sobre animais domésticos, ratos e cobaias. Salvo algumas variâncias na origem e inserção de cada músculo e na fusão dos ventres de alguns grupos musculares, de forma geral, a musculatura da paca assemelha-se a dos animais domésticos e a de outros roedores.

Abstract in English:

ABSTRACT.- Moreira R., Dória R.G.S., Camargo L.M., Santos M.D., Minto B.W., De Nardi A.B., Ambrósio C.E. & Freitas S.H. 2014. [Radiological and macroscopic aspects of autoclaved heterologous fragmented mineralized bone matrix and polymethylmethacrylate in bone defect in tibia of rabbits.] Aspecto radiológico e macroscópico de matriz óssea mineralizada heteróloga fragmentada e polimetilmetacrilato autoclavados em falha óssea de tíbia de coelho. Pesquisa Veterinária Brasileira 34(2):173-178. Departamento de Medicina Veterinária, Faculdade de Zootecnia e Engenharia de Alimentos, Universidade de São Paulo, Av. Duque de Caxias Norte 225, Centro, Pirassununga, SP 13635-900, Brazil. E-mail: shfreitas@terra.com.br A segmental defect of 6mm diameter was performed in the medial metaphyseal region of the tibia of 12 rabbits. For the bone defect reconstruction there was implanted a combination of micro and macro fragments of heterologous fragmented cortical bone matrix preserved in glycerin (98%) and polymethylmethacrylate, both autoclaved. Radiological and macroscopic evaluation was performed at 30, 60, 90 and 120 days. Adhesion in relation to time of the micro and macro composites to the recipient bed was observed in 100% of the cases. This showed that this implant is biologically biocompatible, since it promoted bone defects repair, with no signs of infection, migration and/or rejection. In this way, this implant can be classified as one more option of substitute to fill large bone defects.

• Bone matrix polymethylmethacrylate matriz óssea polimetilmetacrilato

Abstract in Portuguese:

RESUMO.- Moreira R., Dória R.G.S., Camargo L.M., Santos M.D., Minto B.W., De Nardi A.B., Ambrósio C.E. & Freitas S.H. 2014. [Radiological and macroscopic aspects of autoclaved heterologous fragmented mineralized bone matrix and polymethylmethacrylate in bone defect in tibia of rabbits.] Aspecto radiológico e macroscópico de matriz óssea mineralizada heteróloga fragmentada e polimetilmetacrilato autoclavados em falha óssea de tíbia de coelho. Pesquisa Veterinária Brasileira 34(2):173-178. Departamento de Medicina Veterinária, Faculdade de Zootecnia e Engenharia de Alimentos, Universidade de São Paulo, Av. Duque de Caxias Norte 225, Centro, Pirassununga, SP 13635-900, Brazil. E-mail: shfreitas@terra.com.br Foi realizada falha segmentar com 6mm de diâmetro na região metafisária medial de tíbias de 12 coelhos, onde foi implantado uma associação de micro e macrofragmentos de matriz óssea cortical heteróloga fragmentada conservada em glicerina (98%) e polimetilmetacrilato autoclavados, para a sua reconstrução, e avaliados radiológica e macroscopicamente aos 30, 60, 90 e 120 dias. Houve adesão, em relação ao tempo, dos micro e macrocompósitos ao leito receptor, em 100% dos casos, mostrando ser biologicamente biocompatível, pois promoveram a reparação de falhas ósseas, sem sinais de infecção, migração e/ou rejeição, podendo, dessa forma, ser mais uma opção como substituto para preencher grandes defeitos ósseos.

Abstract in English:

ABSTRACT.- Iamaguti L.S., Brandão C.V.S., Pellizzon C.H., Ranzani J.J.T. & Minto B.W. 2008. [Histological and morphometric analysis for the use of a biosynthetic cellulose membrane in experimental trochleopasty.] Análises histológica e morfométrica do uso de membrana biossintética de celulose em trocleoplastia experimental de cães. Pesquisa Veterinária Brasileira 28(4):195-200. Departamento de Cirurgia e Anestesiologia, Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual Paulista, Campus de Botucatu, Distrito de Rubião Jr s/n, Botucatu, SP 18.618-000, Brazil. E-mail: iamaguti_lu@hotmail.com The aim of this study was to evaluate the use of a locally made biosynthetic cellulose membrane after experimental trochleoplasty, in order to verify whether its use could support migration of chondrogenic cells. Twelve male and female adult healthy dogs and without claudication were used. All dogs were submitted to trochleoplasty in both pelvic limbs after sedation and epidural anesthesia. In the left hind limb, the biosynthetic cellulose membrane was fixed with simple suture using Polyglactin 910 6-0 after performing trochleoplasty (treated group); whereas in the right limb (control group) only trochleoplasty was performed. The dogs were subdivided into 4 subgroups for postoperative evaluation at 15, 30, 60 and 90 days post-surgery. Biopsy was performed after exploratory arthrotomy for histopathologic and morfometric evaluation. At 30 and 60 days post-surgery, more condrocyte-like cells of immature aspect were observed in lesions treated with the cellulose membrane. At 90 days post-surgery the reparative tissue was characterized as mature fibrocartilage-like tissue without difference between the groups. In the control group there was a progressive increase of the number of cells until the end of the evaluation period. Otherwise, when compared to the initial period (15 days), there was an increase in the number of cells until 60 days, followed by a return the initial values at 90 days in the treated group. In comparison to controls, the number of cells was greater in the treated group from 15 to 60 days. Initially, the neoformed repair tissue was thicker in the treated group. From the results of this study, it was concluded that the cellulose membrane shortened the initial tissue repair process in the trochleoplasty area, showing good integration of the neoformed tissue with the adjacent cartilage.

• Sulcoplasty physical barrier guided tissue regeneration dog

Abstract in Portuguese:

ABSTRACT.- Iamaguti L.S., Brandão C.V.S., Pellizzon C.H., Ranzani J.J.T. & Minto B.W. 2008. [Histological and morphometric analysis for the use of a biosynthetic cellulose membrane in experimental trochleopasty.] Análises histológica e morfométrica do uso de membrana biossintética de celulose em trocleoplastia experimental de cães. Pesquisa Veterinária Brasileira 28(4):195-200. Departamento de Cirurgia e Anestesiologia, Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual Paulista, Campus de Botucatu, Distrito de Rubião Jr s/n, Botucatu, SP 18.618-000, Brazil. E-mail: iamaguti_lu@hotmail.com The aim of this study was to evaluate the use of a locally made biosynthetic cellulose membrane after experimental trochleoplasty, in order to verify whether its use could support migration of chondrogenic cells. Twelve male and female adult healthy dogs and without claudication were used. All dogs were submitted to trochleoplasty in both pelvic limbs after sedation and epidural anesthesia. In the left hind limb, the biosynthetic cellulose membrane was fixed with simple suture using Polyglactin 910 6-0 after performing trochleoplasty (treated group); whereas in the right limb (control group) only trochleoplasty was performed. The dogs were subdivided into 4 subgroups for postoperative evaluation at 15, 30, 60 and 90 days post-surgery. Biopsy was performed after exploratory arthrotomy for histopathologic and morfometric evaluation. At 30 and 60 days post-surgery, more condrocyte-like cells of immature aspect were observed in lesions treated with the cellulose membrane. At 90 days post-surgery the reparative tissue was characterized as mature fibrocartilage-like tissue without difference between the groups. In the control group there was a progressive increase of the number of cells until the end of the evaluation period. Otherwise, when compared to the initial period (15 days), there was an increase in the number of cells until 60 days, followed by a return the initial values at 90 days in the treated group. In comparison to controls, the number of cells was greater in the treated group from 15 to 60 days. Initially, the neoformed repair tissue was thicker in the treated group. From the results of this study, it was concluded that the cellulose membrane shortened the initial tissue repair process in the trochleoplasty area, showing good integration of the neoformed tissue with the adjacent cartilage.