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Mensagem da Comissão Organizadora O Colégio Brasileiro de Endoscopia e Videocirurgia Veterinária (CBEVV) é o órgão máximo das especialidades em endoscopia e videocirurgia, além de outras áreas de mínima invasão na medicina veterinária. O CBEVV abrange profissionais endoscopistas, cirurgiões e imaginologistas, assim como os clínicos que atuam em gastroenterologia, otorrinolaringologia, pneumologia, nefrologia, urologia, oncologia, neurologia, entre outros. O Colégio vem há anos sendo planejado em reuniões dos profissionais da área e nasceu oficialmente em 2019. Mesmo ainda com poucos anos de criação oficial, o CBEVV promove várias ações na área, como eventos mensais, nas Jornada de Palestras e Mesas Redondas do CBEVV, já realizou o "I Simpósio do CBEVV" e o "I Congresso Internacional do CBEVV" nos anos de 2020 e 2021 respectivamente. O II Simpósio Internacional do Colégio Brasileiro de Endoscopia e Videocirurgia Veterinária (CBEVV) foi o primeiro evento presencial do CBEVV, com transmissão simultânea online, via plataforma Zoom, para todo os participantes, realizado na sede da UFAPE, no período de 17 a 19 de novembro de 2022, na cidade de São Paulo, SP, Brasil o qual agregou palestras com diferentes temas e palestrantes de altíssimo nível nacional e internacional além de apresentação de trabalhos (na forma de miniconferências e de pôsteres). Esse encontro marcou o retorno às atividades presenciais do Colégio e a comissão organizadora agradece a todos os participantes por tornarem o II Simpósio Internacional do CBEVV um dos maiores da área. Desejamos a todos, ótima leitura e esperamos encontrá-los brevemente em nosso próximo evento. Comissão organizadora: Pedro Paulo Maia Teixeira, Maurício Veloso Brun, Marco Augusto Machado Silva, Anelise Bonilla Trindade-Gerardi, Fabíola Dalmolin, Fabiana Azevedo Voorwald, Luís Cláudio Lopes Correia da Silva, León Simões Pinto Fontaine, Renato Leite Leonardo, Luísa Pucci Bueno Borges, José Pedro Herrera Reis Filho, Rogério Akio Nishimaru, Giovanna Bergozza Casagrande, Thiago da Silva Cardoso, Luis Gustavo e Silva Novais, Gabriela Melo Alves dos Santos, Pedro Yuri Erlacher, Beatriz Ibrahim Miranda Antunes & Adriana Ferreira e Ferreira

Background : Primary tracheal adenocarcinoma is a rare neoplasm in cats. The clinical signs often are indicative of upper airway obstruction accompanied with dyspnea, stridor, wheezing, exercise intolerance, and cough. The severity of the clinical signs is related to the size of the mass and consequently, the proportion of the tracheal lumen that is obstructed. The diagnosis is made using thoracic radiography and tracheobronchoscopy by collecting fragments for histopathological analysis and removing the mass. The present study aimed to report the case of a cat with tracheal adenocarcinoma. Case : A 17-year-old Persian female cat presented with clinical signs of dyspnea and progressive weight loss. Emergency therapy was started with bronchodilators, antibiotics, and corticosteroids, but there was no response to treatment. Complementary blood and imaging tests were performed. Thoracic radiography revealed soft tissue opacity overlying the dorsal trachea from the third to the fourth rib, bronchial pattern, and pulmonary hyperinflation. Tracheoscopy showed an irregular intraluminal thoracic trachea mass, occluded by approximately 95% of the airway lumen. The mass was biopsied multiple times with endoscopic cup biopsy forceps, followed by removal of approximately 50% of the mass lesion with an endoscopic wire snare. The patient was in intensive care, and since her clinical condition worsened 48 h after the endoscopic procedure, euthanasia was performed. Necropsy revealed a remanescent mass located in the trachea lumen 8 x 3 mm and a nodule in the right caudal pulmonary lobe with 8 mm of diameter . Histological examination showed epitelian cuboidal neoplastic cells with acinar patterns. Only a few mitosis and moderate anysocitosis were observed. The final diagnosis was primary tracheal adenocarcinoma with pulmonary metastasis. Discussion : The initial oxygen therapy associated with bronchodilators and antibiotics can be explained by the history of asthma. Tracheal tumors in cats are considered to be rare, which makes the diagnosis challenging. The suspicion of tracheal neoplasia was only raised after radiographic examination, but it was not possible to state whether it was intra- or extratracheal. The bronchial pattern reported herein can be observed both in inflammatory diseases such as asthma and bronchitis as well as aging-related diseases in animals. Pulmonary hyperinflation, with a caudal displacement of the diaphragm, is seen in bronchial diseases and in cases of tracheal neoplasms, with the latter justified by the retention of air in the pulmonary lobes. Dehydration and weight loss in the animal are justified by severe dyspnea, which makes it difficult to consume food and water. The tracheoscopy procedure was essential to confirm intraluminal tracheal neoplasia with almost complete lumen obstruction. An attempt was made to remove the neoplasms with polypectomy endoscopic forceps. However, because 95% of the trachea was obstructed, the manipulation led to local edema and bleeding, which promoted complete obstruction of the air passage to the lungs. The obstruction impaired the patient's oxygenation, justifying procedure suspension. The instability and worsening of the clinical picture persisted in the subsequent days, which prevented further intervention, culminating in the animal's euthanasia. Adenocarcinoma, in the present case, was in the advanced stage, evidenced by the presence of pulmonary metastasis. Dyspnea severity was related to neoplasm size, proportion of tracheal lumen obstruction, and presence of pulmonary metastasis. The tumor size associated with the presence of metastasis was a determining factor for the classification of neoplasia in the advanced stage, making more invasive interventions impossible and worsening the patient prognosis.

Background : Primary splenic torsion occurs when there is a splenic vascular pedicle rotation without association of other diseases, as the Gastric Dilatation Volvulus (GDV). Accessory spleen consists in a splenic tissue fraction independent from main organ, caused by a spleen defect in the embryonic development, most remaining asymptomatic and discovered incidentally. They have their own blood supply, which is usually from a branch of the splenic artery. Present report represents a primary splenic torsion with the accessory spleen finding in a dog. Case : A 7-year-old female mongrel was referred to Veterinary Hospital of Universidade Federal do Rio Grande do Sul, showing pain and firm consistency in the left abdominal region, prostration and inappetence four days before the medical appointment. At the clinical examination, the patient was alert, 7% dehydration, hypocorous mucous membranes, without alteration in lymph nodes, left abdominal pain. Laboratory tests, chest radiographic and abdominal ultrasound was requested. Two images compatible with splenic image were visualized, one with a regular structure without vascularization suggesting splenic torsion and another with homogeneous parenchyma and echogenicity of the normal spleen, with vascularization signal. The animal was referred to the surgical procedure and the anesthetic induction protocol with propofol (6 mg.kg -1) and ketamine hydrochloride (2 mg.kg -1) and maintenance with total intravenous anesthesia with propofol (0.2-0.4 mg.kg -1 / min) and lidocaine (2 mg.kg -1), in a semi-closed loop and spontaneous ventilation. The pre-retro-umbilical incision in the ventral midline was performed, and the exploratory celiotomy was done. During the cavity exploring, a small amount of free fluid and a structure compatible with the spleen were observed. It was noted that the splenic vascular pedicle was twisted around its axis and the gastroesplenic and splenocolic ligaments were also involved. The stomach maintained its position, size and vascularization. Thus, an isolated or primary splenic torsion was characterized. The exploratory laparotomy was recommended, and the total splenectomy was the treatment of choice. The accessory spleen did not demonstrate vascular damage; therefore, was advocated the zeal in handling to preserve your integrity. Discussion : Isolated splenic torsion is a rare occurrence in dogs. A retrospective study was performed with 60 dogs presenting with non-traumatic hemoperitoneum, in which only three cases presented splenic torsion. Usually, twisting occurs in large or giant breed dogs with deep chest conformation. The etiology of splenic torsion is not well established. Primary splenic torsion is considered emergency surgery, and the prognosis is considered favorable. The literature shows no relation between the presence of the accessory spleen and the occurrence of primary splenic torsion, but both occur due to congenital defects, both of which may be correlated in this case. The accessory spleen is characterized by a defect in the embryonic formation of the splenic tissue and may be associated with other congenital malformations. It can be concluded that in the primary splenic torsion, early surgical treatment is the most indicated. Total splenectomy was considered adequate, and preservation of the accessory spleen was important due to the possibility of some organ functionality.

Justificativa e objetivo: Avaliar os efeitos antinociceptivos do meloxicam subaracnóideo sobre a hipernocicepc¸ão mecânica induzida pela carragenina em ratos. Métodos: Estudo randômico e controlado. Dezoito ratos Wistar, machos adultos, foram submetidos à implantac¸ão de uma cânula subaracnóidea, e aleatoriamente distribuídos em dois grupos: o Grupo I (GI) recebeu 5 L de soluc¸ão salina, enquanto que ao Grupo II (GII) foram administrados 30 g de meloxicam, ambos pela via subaracnóidea. A hipernocicepc¸ão mecânica foi induzida pela injec¸ão intraplantar de carragenina e avaliada com o emprego de um analgesímetro digital a cada 30 minutos durante um período de 4 horas. Os resultados foram registrados como o do limiar de retirada (g), calculado subtraindo-se o valor das mensurac¸ões após os tratamentos, do valor basal. Resultados: Os valores médios do do limiar de retirada foram menores no grupo tratado com meloxicam ao longo de todos os momentos de avaliac¸ão entre 45 e 165 minutos, contudo não foi demonstrada significância estatística (p = 0,835) para essa diferenc¸a. Conclusão: A administrac¸ão subaracnóidea do meloxicam na dose de 30 g.animal---1 não foi capaz de suprimir a hipernocicepc¸ão mecânica em um modelo de dor inflamatória induzida pela administrac¸ão intraplantar de carragenina em ratos. Os dados sugerem que outras doses sejam pesquisadas antes que o efeito do fármaco seja descartado Background and objective: Evaluate the antinociceptive effects of subarachnoid meloxicam onthe mechanical hypernociception induced by carrageenan in rats.Methods: Randomized controlled trial. Eighteen adult male Wistar rats underwent a cannulaimplantation into the subarachnoid space and were randomly divided into two groups: Group I(GI) received saline solution 5 L, while Group II (GII) received meloxicam 30 mg. The mechani-cal hypernociception was induced by intraplantar injection of carrageenan and evaluated usinga digital analgesymeter every 30 minutes during a 4 hour period. The results were recorded asthe withdrawal threshold (in g), calculated by subtracting the measurement value afterResults: The withdrawal threshold mean values were lower in the group of patients trea-ted with meloxicam over all time points between 45 and 165 minutes, however, there was nostatistical significance, (p = 0.835) for this difference.Conclusion: Subarachnoid meloxicam at a dose of 30 g.animal---1did not suppress the mecha-nical hypernociception in a model of inflammatory pain induced by intraplantar administrationof carrageenan in rats. The data suggest that other dosages should be investigated the drugeffect is discarded

ResumenJustificación y objetivoEvaluar los efectos antinociceptivos del meloxicam subaracnoideo sobre la hipernocicepción mecánica inducida por la carragenina en ratones.MétodosEstudio aleatorizado y controlado. Dieciocho ratones Wistar, machos adultos, fueron sometidos a la implantación de una cánula subaracnoidea y aleatoriamente distribuidos en 2 grupos: el grupo i recibió 5μl de solución salina, mientras que al grupo ii se le administró 30μg de meloxicam, ambos por vía subaracnoidea. La hipernocicepción mecánica fue inducida mediante inyección intraplantar de carragenina y fue calculada con el uso de un analgesímetro digital cada 30min durante un período de 4h. Los resultados fueron registrados como el Δ del umbral de retirada (g), calculado restándose el valor de las medidas posteriormente a los tratamientos, del valor basal.ResultadosLos valores medios del Δ del umbral de retirada fueron menores en el grupo tratado con meloxicam en todos los momentos de evaluación entre 45 y 165min, sin embargo, no se demostró significación estadística (p=0,835) para esa diferencia.ConclusiónLa administración subaracnoidea del meloxicam en la dosis de 30μg/animal–1 no fue capaz de suprimir la hipernocicepción mecánica en un modelo de dolor inflamatorio inducido por la administración intraplantar de carragenina en ratones. Los datos sugieren que deben investigarse otras dosis antes de descartar el efecto del fármaco.AbstractBackground and objectiveEvaluate the antinociceptive effects of subarachnoid meloxicam on the mechanical hypernociception induced by carrageenan in rats.MethodsRandomized controlled trial. Eighteen adult male Wistar rats underwent a cannula implantation into the subarachnoid space and were randomly divided into two groups: group i received saline solution 5μL, while group ii received meloxicam 30μg. The mechanical hypernociception was induced by intraplantar injection of carrageenan and evaluated using a digital analgesymeter every 30min during a 4h period. The results were recorded as the Δ withdrawal threshold (in g), calculated by subtracting the measurement value after.ResultsThe Δ withdrawal threshold mean values were lower in the group of patients treated with meloxicam over all time points between 45 and 165min, however, there was no statistical significance (P=.835) for this difference.ConclusionSubarachnoid meloxicam at a dose of 30μg.animal–1 did not suppress the mechanical hypernociception in a model of inflammatory pain induced by intraplantar administration of carrageenan in rats. The data suggest that other dosages should be investigated the drug effect is discarded.

Background: Cholangiocarcinoma is an epithelial cell malignancy arising at various locations within the biliary tree. Primary liver tumors can be classified morphologically as solid, when a single large tumor involves only one liver lobe; nodular, when multiple tumors are located in different liver lobes; diffuse, when either multifocal nodular changes occur in different liver lobes or when diffuse changes occur throughout the liver. Surgery is the treatment of choice for these tumors because there is no established, effective chemotherapy protocol. This paper reports on the management of a dog with diffuse cholangiocarcinoma.Case: A 13-year-old female, castrated Pinscher, weighting 6 kg, was admitted at the Veterinary Medical Teaching Hospital of the Federal University of Rio Grande do Sul (UFRGS) with clinical signs of abdominal distension and dyspnea that had started one month ago. The patient had been subjected to total unilateral mastectomy to remove an adenocarcinoma. At clinical examination, the animal presented anemia, an area of silence during pulmonary auscultation on the right hemithorax,and hepatomegaly. Because of the chronicity and nonspecific signs, additional tests were requested. Abdominal ultrasound exam showed hepatomegaly with irregular echotexture; cavity areas scattered throughout the organ, especially by the right medial lob; discrete presence of free abdominal fluid. Thoracic radiography showed increased radiopacity in themedial and caudal right hemithorax, suggesting metastasis. Laboratory tests included a complete blood count (normocytic mycrocytic anemia), an albumin count (27.49 g/L), an alanine amino-transferase test (77.40 U/L), an alkaline phosphatase test (284.94 U/L), a creatinine test (0.81 mg/dL), a conjugated bilirubin test (0.1 mg/dL), a not conjugated bilirubin test (0.1mg/dL), and a total bilirubin test (0.2 mg/dL). After blood transfusion, a hepatic lobectomy was performed. An incision was made along the ventral midline. A tumoral mass, approximately 20 cm in diameter, was observed in the right medial lobe, as well as diffuse changes throughout all hepatic lobes. A total lobectomy was performed by applying the mass ligationtechnique by placement of a circumferential ligature around the liver hilus. The abdominal cavity was sutured routinely. Histopathological examination showed primary cholangiocarcinoma. The animal had excellent postoperative recovery after six days. Subsequently, the patient again succumbed to hepatomegaly, ascites, anemia, and lethargy, and the ownerchose to euthanize the patient and did not authorize a necropsy.Discussion: The cholangiocarcinoma was classified as primary and diffuse because of the macroscopic characteristics of the liver, since there were diffuse changes throughout the organ. Surgical excision was the treatment of choice. Although the prognosis was better in the early stages, lobectomy was chosen in order to improve the patient’s respiratory condition and, consequently, improve the quality of life. There were no surgical complications and the patient presented good postoperative recovery. After 60 days of the surgical procedure, clinical signs recurred (anemia, hyporexia and abdominal distension) and euthanasia was performed. Hepatic lobectomy in an animal with advanced stage cholangiocarcinomaprovided good quality of life for a period of 60 days.Keywords: neoplasm, liver, surgery, hepatectomy.

A hérnia traumática paracostal é classificada como uma hérnia abdominal com abaulamento do abdômen formando um espaço não fisiológico sobre as costelas. O tratamento consiste em reconstituir cirurgicamente a musculatura rompida da região toracoabdominal. A herniorrafia paracostal laparoscópica foi realizada em um cão da raça Teckel, macho de oito meses de idade, com histórico de trauma automobilístico. Optou-se pela utilização da abordagem laparoscópica tanto para o diagnóstico definitivo quanto para a correção da mesma. Foi utilizado o acesso com três portais, permitindo a tração do omento herniado, momento este em que o animal apresentou pneumotórax devido a uma comunicação toracoabdominal esquerda. O paciente foi submetido à toracocentese e adaptação de dreno no hemitórax esquerdo. A herniorrafia foi realizada com sutura intracorpórea em padrão contínuo de colchoeiro e festonada de Ford com fio monofilamentar náilon zero. O paciente apresentou rápida recuperação pós-operatória, sem ocorrências de recidivas. Assim, a herniorrafia paracostal laparoscópica mostrou-se satisfatória, possibilitando o diagnóstico definitivo e concomitante correção do defeito abdominal e diafragmático, podendo ser indicada como uma alternativa à cirurgia convencional. Traumatic paracostal hernia is classified as an abdominal hernia that protrudes from the abdomen to a non physiologic space over the ribs. Treatment requires surgical reconstruction of the disrupted musculature in the thoracoabdominal region. Laparoscopic paracostal herniorrhaphy was performed in an eight-month-old male Teckel, presented after a car accident injury. A three-portal laparoscopic access was used for definitive diagnosis and hernia correction. After traction of the herniated omentum, a thoracoabdominal communication caused a left side pneumothorax, which was successfully drained with a chest tube placement. The herniorrhaphy was accomplished with intracorporeal sutures by a combination of Ford interlocking and cross mattress patterns. The postoperative period was uneventful. The laparoscopic paracostal herniorrhaphy was satisfactory, allowing both diagnosis and correction of the paracostal defect, showing to be a feasible alternative to the open surgery.

A estenose esofágica adquirida ocorre normalmente em função de uma esofagite severa, resultando em processo cicatricial com proliferação de tecido fibroso. Entre as causas, encontra-se o refluxo gastroesofágico em animais anestesiados. O presente trabalho objetiva relatar o tratamento de estenose esofágica em uma cadela por dilatações luminais endoscópicas, associadas ao uso de triancinolona intralesional. Um canino, SRD, foi atendido com a queixa de regurgitação e emagrecimento progressivo. Esses sinais surgiram após a realização de OVH videolaparoscópica eletiva, durante a qual a paciente apresentou regurgitação no transoperatório. Com base no exame clínico e nos achados endoscópicos, foi possível confirmar o diagnóstico de estenose no terço final do esôfago cervical. Após o diagnóstico definitivo, iniciou-se o tratamento com dilatações esofágicas intraluminais endoscópicas e administração intralesional de triancinolona. Esse procedimento foi repetido uma vez por semana, durante quatro semanas. A quinta dilatação ocorreu após 14 dias da quarta dilatação. O paciente teve alta hospitalar após sete dias da quinta e última seção de dilatação esofágica e aplicação de triancinolona, não apresentando mais episódios de regurgitação, mesmo ao se alimentar com ração seca sem plano inclinado. Conclui-se que as dilatações esofágicas associadas ao uso de triancinolona intralesional foram efetivas no tratamento de estenose de esôfago no presente caso. The acquired esophageal stenosis usually occurs due to a severe esophagitis, resulting in the healing process with proliferation off ibrous tissue. Is gastroesophageal refluxin anesthetized animals among the reasons of this disease. This paper reports a case of esophageal luminal endoscopic dilations associated with intralesional triamcinolone in a bitch with esophageal strictures. A mongrel canines hows regurgitation and progressive weight loss. These signs appeared after elective laparoscopic OVH performed, where the patient had part of regurgitation during surgery. Based on clinical and endoscopic findings it was possible to diagnostic stenosis in the final third of the cervical esophagus. The treatment was done with esophageal dilations and intraluminnal triamcinolone administration. This procedure was repeated once a week for four weeks. The 15th dilatation occurred 14 days after the 14th. The patient was discharged after seven days of the final dilatation with no more regurgitation, even when feeding dry kibble within o incline. We concluded that the esophageal dilation associated with in tralesional triamcinolone were effective esophageal strictures treatment in this case.

Os lipossarcomas são tumores malignos de lipócitos e lipoblastos raramente relatados em espécies aviárias. Acometem geralmente pássaros adultos ou velhos e em regiões onde existe acúmulo de tecido adiposo. O presente trabalho relata um caso raro de lipossarcoma em uma caturrita (Myiopsitta monachus) com cinco anos de idade que apresentava nódulo de crescimento progressivo na extremidade distal da asa esquerda, com evolução de seis meses. Apesar da dificuldade de deambulação, a ave apresentava disposição e normorexia. Procedeu-se à extirpação cirúrgica da massa tumoral, e o exame histopatológico permitiu o diagnóstico de lipossarcoma bem diferenciado. Não foram observadas recidivas ou metástases durante o período de 24 meses após o procedimento, o que confirma a adequação da conduta cirúrgica realizada. Liposarcomas are malignant tumors that involve lipocytes and lipoblasts. This neoplasm is not frequently reported in avian species and generally occurs in adult or old birds and it is always seen in areas of adipose accumulation. This report presents a rare case of liposarcoma in a five-year-old quaker parrot (Myiopsitta monachus). The patient had a 6-month progressive growing nodule at the left wing extremity and ataxia; however, normal appetite and disposition were noticed. After the neoplasm extirpation, the pathological study pointed out a well-differentiated liposarcoma. Local disease or metastasis signals were not observed within 24 months after the surgery. The surgical procedure was effective to control the liposarcoma in this bird.

Background: Leiomyosarcoma is a non-encapsulated tumor, belonging to the group of soft tissue sarcomas and often invasive. This histological type comprises the most aggressive solid tumors and, because they respond poorly to therapy, are considered the worst prognosis. The dissemination of metastatic cells can occur mainly hematologically to the liver, lungs and bones or by direct invasion, but metastases to blood vessels are rare and surgery is the treatment of choice in most cases. This paper aims to report a rare case of tumor thrombus in the cranial mesenteric artery secondary to an intestinal leiomyosarcoma.Case: A 9-year-old female S.R.D dog presenting inappetence, evolving to anorexia, weight loss, anemia and vomiting for approximately 15 days was referred to the Hospital of Veterinary Clinics of the Federal University of Rio Grande do Sul. Previous therapy at another clinic with three blood transfusions did not promote reversal of anemia. Ultrasonographyrevealed a nodule in the small intestine of seven cm in diameter and in the hemogram a hypochromic macrocytic anemia. Thoracic radiography did not reveal metastases. After a new blood transfusion, the patient was referred to an exploratory laparotomy, where the nodule was identified in the small intestine, which was cyanotic and two nodules in the cranialmesenteric artery, partially obstructing the local blood flow. Resection and intestinal anastomosis were performed from the final portion of the duodenum to the cecum, with ligation of the mesenteric artery and the nodules were sent for histopathological analysis. The animal presented a gradual improvement of the condition, with the introduction of liquidfeeding on the second postoperative day. After these days, he presented hypochromic macrocytic anemia, with presence of Howell-Jolly corpuscle, spherocytes and icteric plasma, compatible with hemolytic anemia. Treatment with prednisone was started, with a worsening of the condition. The patient had generalized jaundice and died five days after surgery. Theanimal was referred to the necropsy in which it showed abdominal fluid of slightly reddish color, adherence of viscera (intestine, stomach and omentum). In the surgical area (enterectomy) there was purulent secretion on the points, the large intestine presented ecchymosis and petechiae on the mucosa. Histological examinations of the nodule and thrombus revealed malignant mesenchymal neoplasia formed by spindle cells with elongated nuclei, abundant eosinophilic cytoplasm and moderate anaplasia, interspersed by connective tissue, with areas of necrosis and neutrophilic infiltrate. The final diagnostic was intestinal leiomyosarcoma with mesenteric vessel metastasis and septicemia.Discussion: Because the tumor thrombus is located in the mesenteric artery, resection of a large part of the small intestine was necessary because this artery promotes the irrigation of this region. When this procedure is performed, a common complication is short bowel syndrome, necessitating a specific nutritional therapy. The animal probably developed hemolytic anemia by the successive blood transfusions that it underwent, causing in a worsening of the anemia and developing jaundice, not responding to the instituted therapy. In addition, there were rupture of the surgery points, extravasating fluid into the abdominal cavity, triggering a septicemia resulting in the death of the patient.Keywords: intestinal tumor, neoplasia, metastasis.

A colonoscopia é importante procedimento diagnóstico e terapêutico utilizado nas afecções que acometem o intestino grosso de cães. Uma condição essencial para sua realização é o preparo do paciente, incluindo a remoção de fluídos e do material fecal do cólon. Nesse estudo foram avaliados a eficácia do preparo com bisacodil oral e enema fosfatado, comparando dois diferentes intervalos de tempo entre o enema e a colonoscopia. Quatro cães foram distribuídos igualmente em dois grupos: grupo 2 horas (G2h) e grupo 45 min. (G45min.), de acordo com o intervalo de tempo transcorido entre o segundo enema e a colonoscopia. Em ambos os grupos, o colônica grau II foi classificado como bom, enquanto que o G45min. em grau I, excelente. A solução de NaP retal, promove limpeza colônica adequada para colonoscopia, porém, para melhor visibilização da mucosa, indica-se que o segundo enema seja realizado 45minutos previamente ao procedimento. The colonoscopy is a diagnostic and terapeutic procedure used in the dog’s bowel. Patient preparation is an excencial aspect to this procedure, wich include removal of fluid and fecal material from the colon. On this report we evaluated the efficacy of oral bisacodil combined with a phosphate enema, were compared two differents interval of time, considering enema and colonoscopy. Four dogs separeted in two groups: group 2 hour (G2h) and group 45 min. (G45min.), according to the time interval between second enema and colonoscopy. In both groups the first enema was performed four hours before procedure. The G2h resulted in cleaning colonic grade II, classified as good visibilities, while G45min., showed grade I, excellent. The rectal application of NaP, promotes colonic cleaning suitable for colonoscopy. However, to better mucosal visualization, the second enema should be performed 45 minutes before colonoscopy.

Foram comparadas duas vias de administração, oral e retal, com a solução de fosfato monobásico e dibásico de sódio (NaP), juntamente com bisacodil via oral, no preparo do cólon para colonoscopia rígida em cães, para avaliar parâmetros clínicos, qualidade do preparo e variações dos eletrólitos fósforo, cálcio, potássio (K+) sódio (Na+) e magnésio (Mg+), além da creatinina, albumina e hemograma. Todos os eletrólitos apresentaram alterações, sendo significativa a queda nos níveis de K+ e Mg+. Não houve alterações eletrocardiográficas, e a redução da microbiota bacteriana foi confirmada nos dois grupos de administração da solução. Os resultados foram similares quanto à incidência de efeitos colaterais, porém a via retal apresentou facilidade na administração, menor retenção fecal no cólon, maior rapidez para realização da colonoscopia, com menor desperdício de tempo na lavagem e na aspiração do conteúdo fecal. O preparo intestinal com bisacodil oral e solução de NaP por via retal foi mais eficaz, podendo ser recomendado em cães que serão submetidos à colonoscopia.

Neste trabalho, descreve-se o diagnóstico e a conduta terapêutica aplicada em caso de dermatomicose e ceratite micótica causada por Exophiala sp em um cão com um ano e seis meses de idade. Os sinais clínicos incluíam alopecia, crostas, despigmentação e ulceração do plano nasal e focinho, e ceratite superficial bilateral no canto lateral dos olhos. Na cultura fúngica foi isolado Exophiala sp e o exame histopatológico da biopsia cutânea revelou dermatite nodular superficial e profunda granulomatosa. O tratamento com itraconazol sistêmico promoveu remissão dos sinais clínicos. Conclui-se que a realização de cultura fúngica e biópsia de pele são exames complementares eficazes no diagnóstico de dermatomicoses e que o emprego de itraconazol sistêmico pode ser efetivo no tratamento de dermatite fúngica e ceratite micótica causado por Exophiala sp em cão. This report describes the diagnosis and the therapeutic conduct applied to the cases of subcutaneous dermatomycosis and mycotic keratitis caused by Exophiala sp in a one and a half year-old dog. The clinical signs included alopecia, crusts, dispigmentation, ulcerations in the nose and superficial bilateral keratitis in the corner of the eyes. In the fungal cultures, Exophiala sp was isolated and the microscopic analysis revealed characteristics of fungal dermatitis. Systemic therapy with itraconazole evidenced remission of clinical signs. The realization of fungal cultures and cutaneous biopsy are efficient complementary procedures in the diagnosis of dermatomycosis and that the usage of oral itraconazole can be effective in the treatment of fungal dermatitis and mycotic keratitis caused by Exophiala sp in dogs.

Os defeitos de espessura completa do palato que resultam em comunicação oro-nasal raramente cicatrizam espontaneamente. Eles requerem reparo cirúrgico, porém, pode ser difícil obter cicatrização satisfatória devido às condições próprias das cavidades nasal e oral. Neste experimento, foram utilizados 14 cães, reunidos em dois grupos de igual número. Todos animais foram submetidos à indução de fenda palatina experimental. O grupo G1 foi o controle, cuja palatoplastia foi realizada a partir da confecção de "flap" muco-periósteo. No grupo G2, foi utilizada cartilagem da pina auricular conservada em glicerina a 98% entre o osso palatino e o muco-periósteo. Os animais foram avaliados macroscopicamente quanto ao processo cicatricial, por radiografias para a regeneração óssea e por rinoscopia para observar a regeneração da mucosa nasal. Foi observada a cicatrização da mucosa oral a partir do 10º dia, com deiscência de sutura em dois animais do grupo G1. A radiografia demonstrou evolução na cicatrização óssea, num processo mais acelerado no grupo G2 quando comparado ao grupo G1. A rinoscopia revelou, aos 60 dias, completa regeneração da mucosa nasal em ambos os grupos. Ao final do período de avaliação foi observada macroscopicamente, completa fusão óssea nos animais do grupo G2 e incompleta nos do grupo G1, o que demonstrou a interferência benéfica do implante no processo cicatricial do grupo G2.

A cirurgia endoscópica por orifícios naturais (NOTES) representa um novo conceito de cirurgia, caracterizada por ausência de incisões abdominais. Os acessos mais comumente usados são o transvaginal e o transgástrico. Entretanto, as rotas transcolônica e transretal representam alternativas promissoras. O presente estudo objetiva avaliar três diferentes técnicas de sutura retal em três suínos submetidos a NOTES transretal para biópsia hepática, avaliando-se concomitantemente as repercussões clínicas e hematológicas. Sob anestesia geral, foi realizada uma incisão transversal no reto para a passagem do endoscópio até a cavidade abdominal em todos os animais para a realização da biópsia hepática. Cada animal recebeu um tipo de sutura retal: sutura em dois planos; reforço com tela de polipropileno ou reforço com membrana de pericárdio bovino. A NOTES transretal em modelo experimental suíno não apresentou implicações clínicas e hematológicas importantes, o que demonstra um acesso alternativo para biópsia hepática. Nenhum animal apresentou sinais de peritonite, aderências ou deiscência de pontos. O uso de reforço com pericárdio bovino para a sutura retal apresenta um atraso na cicatrização quando comparado com a sutura convencional ou com o uso de tela de polipropileno.

The inoculation of cells into injury sites can accelerate and improve the quality of nerve regeneration. This study aimed to evaluate the functional and regenerative effects of mononuclear autologous bone marrow cells (MABMC) combined with silicon conduit grafting in rabbit femoral nerves. Twenty-eight animals were allocated to one of two groups: treatment group (TG) or control group (CG), divided according to the time of evaluation, at either 50 or 75 days. After neurotmesis of the femoral nerve, surgical repair was performed with nerve autografts in silicon conduits, leaving a 5mm gap in both groups. The TG received MABMC in silicon conduits, and CG received a sham saline inoculum. Histological, clinical and electrophysiological analyses detected no differences between groups, but analysis of leg diameter showed that TG diameters were larger. This cell therapy did not improve regeneration of the femoral nerve, but there was a tendency for better functional recovery.

O presente relato descreve a realização de criptorquectomia, ressecção de cisto prostático e herniorrafia perineal vídeolaparoscópicas em um cão da raça Collie que apresentou recidiva dos sinais clínicos após redução cirúrgica convencional. Pela cirurgia laparoscópica, com três portais retroumbilicais, localizou-se um testículo intrabdominal, que foi removido após a aplicação de clipes de titânio no mesórquio e nos vasos testiculares. Verificou-se também a presença de um cisto prostático que foi drenado por punção transparietal com agulha e, em seguida, realizaram-se a ressecção da parede e omentopexia na cavidade cística. Na avaliação da cavidade pélvica, verificou-se que o tamanho do defeito herniário permitia ser manejado por laparoscopia. Aplicou-se uma sutura intracorpórea no padrão colchoeiro abrangendo músculo coccígeo e elevador do ânus. O procedimento total durou aproximadamente 140 minutos, não havendo complicações. Conclui-se que a cirurgia laparoscópica pode ser empregada no tratamento de cisto prostático e na herniorrafia perineal de cães. This research describes the cyst resection of the prostate, perineal hernia and laparoscopic criptorquidectomia of a Collie dog, which showed clinical signs of recurrence after conventional hernia surgery. By mean three retroumbilical portals,an intraabdominal testicle was located through laparoscopic surgery. It was removed after the application of titanium clips in mesorquio and pots testicules. A prostate cyst was noticed that was drained by puncture with a transparietal needle. An incision was made in the wall and omentopexia of the cystic cavity was performed. In the evaluation of the pelvic cavity, it was found that the hernial defect was small and could be managed by laparoscopy. An intracorporeal suturing pattern was applied which covered the coccygeal muscle and lifted the anus. The entire procedure took about 140 minutes, with no complications. It was concluded that laparoscopic surgery can be used to treat prostate cysts and the perineal hernia of dogs.