Remoção endoscópica de corpo estranho ventricular em gallus gallus domesticus da raça brahma: relato de caso / Endoscopic removal of a ventricular foreign body in a brahma gallus domesticus: case report / Extracción endoscópica de un cuerpo extraño ventricular en un brahma gallus domesticus: informe de un caso

Relatos de ingestão de corpos estranhos dos mais diferentes materiais são comuns em aves, especialmente nas mais jovens. Os corpos estranhos podem causar intoxicação (dependendo da composição do material) ou mesmo perfuração do canal alimentar ou obstrução gastrintestinal. Quando há suspeita de ingestão de corpos estranhos, exames de imagem como a radiologia, ultrassonografia e endoscopia são ferramentas valiosas para o diagnóstico. Objetivou-se relatar um caso de uma ave da espécie Gallus gallus domesticus, raça Brahma, sete meses de idade, macho, pesando 4,3 Kg com quadro de sensibilidade na cavidade corporal e histórico de regurgitação, hiporexia e prostração há cinco dias. As radiografias simples indicaram a presença de corpo estranho radiopaco (parafuso) alojado na região do ventrículo (moela). Após tratamento clínico com lavagens gástricas por cinco dias sem êxito, optou-se por realizar uma endoscopia digestiva alta sob anestesia geral com quetamina e isoflurano. O corpo estranho foi satisfatoriamente removido com pinça de alça de polipectomia e a ave apresentou rápida melhora clínica sem complicações. A endoscopia mostrou-se um procedimento pouco invasivo e eficaz para a resolução do presente caso. Os clínicos veterinários de aves devem considerar a possibilidade de usar a endoscopia como ferramenta para diagnóstico e resolução de corpos estranhos no canal alimentar das aves.(AU)

Reports of ingestion of foreign bodies from most different materials are common in birds, especially younger ones. Foreign bodies can cause intoxication (depending on the composition of the material) or even perforation of the alimentary canal and gastrointestinal obstruction. When foreign body ingestion is suspected, imaging tests such as radiology, ultrasound, and endoscopy are valuable diagnostic tools. The objective of this paper was to report a case of an avian of the species Gallus gallus domesticus, Brahma breed, seven months old, male, weighing 4.3 kg, with sensitivity in the body cavity, and a history of regurgitation, hyporexia, and prostration for five days. Plain radiographs indicated the presence of a radiopaque foreign body (screw) lodged in the ventricle region (gizzard). After clinical treatment with gastric lavages for five days without success, it was decided to perform an upper digestive endoscopy under general anesthesia with ketamine and isoflurane. The foreign body was satisfactorily removed with polypectomy loop forceps, and the bird showed rapid clinical improvement without complications. Endoscopy proved to be a minimally invasive and effective procedure for resolving the present case. Avian veterinary practitioners may consider using endoscopy to diagnose and resolve foreign bodies in the alimentary canal of birds.(AU)

Los informes de ingestión de cuerpos extraños de los más diferentes materiales son comunes en las aves, especialmente en las más jóvenes. Los cuerpos extraños pueden causar intoxicación (dependiendo de la composición del material) o incluso perforación del tubo digestivo u obstrucción gastrointestinal. Cuando se sospecha la ingestión de un cuerpo extraño, las pruebas de imagen como la radiología, la ecografía y la endoscopia son valiosas herramientas diagnósticas. El objetivo fue reportar un caso de un ave de la especie Gallus gallus domesticus, raza Brahma, de siete meses de edad, macho, con un peso de 4,3 kg, con sensibilidad en la cavidad corporal y antecedentes de regurgitación, hiporexia y postración de cinco días de evolución. Las radiografías simples indicaron la presencia de un cuerpo extraño radiopaco (tornillo) alojado en la región del ventrículo (molleja). Tras tratamiento clínico con lavados gástricos durante cinco días sin éxito, se decide realizar endoscopia digestiva alta bajo anestesia general con ketamina e isoflurano. El cuerpo extraño se extrajo satisfactoriamente con pinzas de asa de polipectomía y el ave mostró una rápida mejoría clínica sin complicaciones. La endoscopia demostró ser un procedimiento mínimamente invasivo y efectivo para la resolución del presente caso. Los veterinarios aviares deberían considerar la posibilidad de utilizar la endoscopia como herramienta para el diagnóstico y resolución de cuerpos extraños en el tubo digestivo de las aves.(AU)

Gastroesophageal foreign bodies in dogs - endoscopy and surgical removal

Background: Gastroesophageal foreign bodies (GFD) are commonly diagnosed in dogs and are considered an endoscopic emergency that, although not resulting in serious clinical sequelae or mortality, can compromise the health and well-being of the patient. The use of the digestive endoscopy for the diagnosis and treatment of GFD can be a valuable and viable alternative. There are cases of GFD in dogs for which the indicated treatment is surgery, which can be performed using minimally invasive or conventional techniques, associated or not with flexible endoscopy. The objective of this work is to describe 16 cases of GFD removal in dogs demonstrating the efficiency of upper digestive endoscopy. Cases: Of the 16 GFD cases, 63% (10/16) were male and 37% (6/16) female. Most aged under 1 year (63%), puppies (5/16) and juveniles (5/16). The patient with the lowest body weight was a miniature pinscher weighing 0.8 kg (Case 14) and the heaviest was an American Pit Bull Terrier weighing 28 kg (Case 11), the mean body weight of patients diagnosed with GFD was 10.2 ± 6.7 kg. Small and medium breeds were more affected, 44.7% (7/16) and 44.7% (7/16), respectively, and large breeds (Golden Retrievier and Bull Terrier), from cases 1 and 4, the least affected, 12.6% (2/16) of the cases. The 16 patients underwent a 12 h food fast and a 4 h water fast, as gastrointestinal emptying in these cases of GFD can be influenced by these foreign bodies. All underwent general inhalation anesthesia with monitoring of physiological parameters (temperature, heart rate, respiratory rate, oxygen saturation and blood pressure) before, during and after EGD, being positioned in left lateral decubitus. The 16 canine patients with suspected GFD underwent EGD for diagnostic confirmation and removal of foreign bodies. Five esophageal FB were diagnosed, 31% (5/16), and 11 gastric FB, 69% (11/16). The most frequently diagnosed foreign bodies were bone and tissue, 37.5% (6/16) and 31% (5/16). Other foreign bodies were materials such as plastics, metals, rubber, foam and stone. Of the 16 cases of GFD, EGD efficiently treated 88% (14/16) without the need for hospitalization, with only supportive treatment for the remission of complications caused by the presence of foreign bodies in the gastroesophageal tract. The main complications related to the presence of GFD were esophagitis in 25% (4/16) of cases, gastritis in 38% (6/16) and both alterations in 13% (2/16). Discussion: In this work, we can observe that more than a third of the clinical cases of treated dogs were diagnosed with GFD, demonstrating that these cases are common in the veterinary clinic. Most of these animals were males less than 1 year old. The improvement of learning in this category can lead these animals to exacerbated oral exploration of new objects. Most FBs were found in the stomach because they were of adequate size, consistency and shape for their passage through the esophagus, whereas esophageal FBs were all bone fragments of rigid consistency with diameters and sizes larger than the esophageal lumen. The interval between the ingestion of the object and the veterinary care can be decisive for the removal of the FB in the esophagus or stomach. Most gastric FBs removed were fabrics and plastics, flexible objects that can pass through the esophageal lumen more easily. Removal of GFD by endoscopy was performed with a high success rate, with only 2 cases being resolved by esophagostomy and gastrotomy. Flexible endoscopy proved to be an efficient technique for removing treated GFD, which can help remove FB during esophagotomy and be associated with rigid endoscopy. Patients recovered quickly and without complications, but it is important to emphasize that inadequate maneuvers and conducts can determine other outcomes. The use of endoscopy for GFD removal needs to be more popularized, as it can ensure better results for dogs treated with GFD.

Thoracoscopy pulmonary biopsy by two portals with a novel pre-tied loop ligature device in rabbits: an experimental study / Biópsia pulmonar por toracoscopia por dois portais com uma nova ligadura de alça pré-amarrada em coelhos: um estudo experimental

Thoracoscopy is replacing open lung biopsies because it is less invasive, usually the technique is done using three portals and intracorporeal suture technique. This study described the feasibility and efficacy of a novel pre tied loop ligature and to propose a thoracoscopic access strategy with two portals to perform lung biopsy in patients under 5 kg. Ten rabbits were positioned in dorsal recumbency. Total thoracoscopic lung biopsy was performed using a combined transdiaphragmatic approach and a right intercostal approach. A pre tied loop ligature was placed to perform a caudal lung lobe biopsy. Insufflation of the thoracic cavity was not performed. The total surgery time was 41.4 ± 14.5 min. The procedure was carried out free of complications that prevented slippage or tightening the knot or that made it come loose after the lung biopsy; there was no serious complication during the surgical procedure. The samples obtained averaged 1x0.64x0.45 cm (Length, Width, Depth) and were considered satisfactory according to the histopathologic evaluation. Thorax radiographs taken before and after the surgeries were compared and showed no pneumothorax or hemothorax. Necropsy confirmed no knot failure occurred at the biopsy site. The use of the novel pre tied loop ligature is a safe and effective technique, avoiding problems with the limited size of the thoracic cavity in small patients.

A toracoscopia está substituindo as biópsias pulmonares abertas por ser menos invasiva. Usualmente a técnica é feita utilizando três portais e ligaduras feitas intra corporalmente. O objetivo deste estudo foi descrever a viabilidade e eficácia de uma nova ligadura com alça pré-amarrada e propor uma estratégia de acesso toracoscópico com dois portais para realizar biópsia pulmonar em pacientes com menos de 5kg. Dez coelhos foram posicionados em decúbito dorsal. A biópsia pulmonar por toracoscopia total foi feita pela abordagem combinada transdiafragmática e abordagem intercostal direita. Uma nova ligadura pré-amarrada foi colocada para realizar uma biópsia do lobo pulmonar caudal. Não foi realizada insuflação da cavidade torácica. O tempo total de cirurgia foi de 41,4 ± 14,5 min. Os procedimentos foram realizados sem complicações que impedissem o escorregamento ou aperto do nó ou que o soltassem após a biópsia pulmonar; não houve nenhuma intercorrência grave durante o procedimento cirúrgico. As amostras coletadas tinham tamanho médio 1x0,64x0,45 cm e foram consideradas satisfatórias de acordo com a avaliação histopatológica. As radiografias de tórax feitas antes e depois das cirurgias foram comparadas e não mostraram pneumotórax ou hemotórax. A necropsia confirmou que não ocorreu falha do nó no local da biópsia. Conclui-se que uso da nova ligadura com alça pré-amarrada é uma técnica segura e eficaz, evitando problemas com o tamanho limitado da cavidade torácica em pacientes pequenos.

The interaction between the environment and embryo development in assisted reproduction

It can be assumed that the natural processes of selection and developmental condition in the animal provide the best prerequisites for embryogenesis resulting in pregnancy and subsequent birth of a healthy neonate. In contrast, circumventing the natural selection mechanisms and all developmental conditions in a healthy animal harbors the risk of counteracting, preventing or reducing the formation of embryos or substantially restricting their genesis. Considering these facts, it seems to be obvious that assisted reproductive techniques focusing on early embryonic stages serve an expanded and unselected germ cell pool of oocytes and sperm cells, and include the culture of embryos outside their natural habitat during and after fertilization for manipulation and diagnostic purposes, and for storage. A significant influence on the early embryonic development is seen in the extracorporeal culture of bovine embryos (in vitro) or stress on the animal organism (in vivo). The in vitro production per se and metabolic as well as endocrine changes in the natural environment of embryos represent adequate models and serve for a better understanding. The purpose of this review is to give a brief presentation of recent techniques aimed at focusing more on the complex processes in the Fallopian tube to contrast in vivo and in vitro prerequisites and abnormalities in early embryonic development and serve to identify potential new ways to make the use of ARTs more feasible.(AU)

Alternative use of endocavitary probe to guide minimally invasive partial nephrectomy: is it reasonable?

Purpose: To describe the use of endocavitary ultrasound probe as an auxiliary tool when performing partial nephrectomy in cases of endophytic renal tumors, to standardize the method, and to report the preliminary results achieved with this technique. Methods: Fifteen patients diagnosed with completely endophytic underwent partial nephrectomy with the use of an endocavitary ultrasound probe. This article describes the technique involved in partial nephrectomy and details the preparation of the endocavitary ultrasound probe to ensure its safe use. Results: All the patients had a RENAL score between 8 and 11. The median time of warm ischemia was 26 and 18 minutes for laparoscopic or robot-assisted surgery, respectively. The median duration of surgery was 150 minutes, and the median console time was 145 minutes for the laparoscopic and robot-assisted surgery groups, respectively. The median estimate of blood loss was 200 mL. Only three patients in the laparoscopic group had focal positive surgical margins. There were no cases of infection at the site of probe entry. Conclusions: Intraoperative use of an endocavitary ultrasound probe for partial nephrectomy is possible and a safe alternative to the excision of endophytic tumors when neither robotic probes nor laparoscopic probes are available.

Avaliação andrológica no garanhão: ênfase no exame interno do sistema genital / Breeding soundness examination in stallions: emphasis on internal assessment of the genital system

A avaliação do sistema genital interno no garanhão é uma importante etapa do exame andrológico, mas ainda é negligenciada na clínica reprodutiva dessa espécie. A maioria das enfermidades que acometem as glândulas sexuais acessórias e a uretra são descritas na literatura como pouco frequentes e até mesmo raras, no entanto a falta de diagnóstico, em muitos casos, contribui para essa estatística. Dentre as enfermidades mais recorrentes se destacam a vesiculite seminal, obstrução de ampola e fistula uretral que podem levar a prejuízos na qualidade seminal e baixa fertilidade. Dessa forma, o objetivo desta revisão é abordar as principais ferramentas de avaliação dos órgãos genitais internos nos machos equinos, visando contribuir para o correto diagnóstico e tratamento das principais afecções que os acometem.(AU)

The evaluation of the internal genital system in stallions is an important step in the breeding soundness exam that is still neglected in the reproductive clinic of this species. Most diseases that affect the accessory sex glands and the urethra are described in the literature as infrequent and even rare, however the lack of diagnosis, in many cases, contributes to this statistic. Among the most recurrent diseases are seminal vesiculitis, plugged ampullae and urethral rent that can lead to decreased seminal quality and low fertility. Thus, the objective of this review is to highlight the main tools for evaluating the internal genitalia in stallions, aiming to contribute to the diagnosis and treatment of the main conditions that affect them.(AU)

Experimental model for controlled endoscopic subepithelial vocal fold injury in rats

Purpose: To present a detailed, reproducible, cost-efficient surgical model for controlled subepithelial endoscopic vocal fold injury in the rat model. Methods: Six male Sprague Dawley rats were enrolled in the experiment. The left vocal folds were used to carry out the injury model, and the right vocal fold served as control. After deep sedation, the rats were placed on a custom operating platform. The vocal fold injury by subepithelial stripping was carried out using custom-made microsurgical instruments under endoscopic guidance. Data were analyzed for procedural time and post-procedural pain. Microcomputed tomography (micro-CT) scan and histologic images were obtained to assess the length, area, and depth of injury to the vocal fold. Results: The mean procedural time was 112 s. The mean control vocal fold length was 0.96 ± 0.04 mm. The mean vocal fold injury length was 0.53 ± 0.04 mm. The mean vocal fold surface was 0.18 ± 0.01 mm2 with a mean lesion area of 0.05 ± 0.00 mm2. Mean vocal fold injury depth was 375.4 ± 42.8 µm. The lesion length to vocal fold length ratio was 0.55 ± 0.03, as well as lesion area to vocal fold surface area was 0.29 ± 0.02. Conclusions: Our described experimental vocal fold injury model in rats is found to be fast, safe, cost-efficient, and reproducible with a rapid learning curve.

Técnica de dilatación con balón mediante procedimiento de endoscopia en un perro con estenosis esofágica: reporte de caso / Balloon dilatation technique via endoscopy procedure in a dog with esophageal stenosis: case report / Técnica de dilatação por balão via procedimento endoscópico em cão com estenose esofágica: relato de caso

La estenosis esofágica es una alteración morfofuncional que provoca una lesión inflamatoria en las capas submucosas y musculares del esófago, induciéndolas a la fibrosis y alterando el diámetro esofágico. El presente informe aborda el uso de un dilatador de balón como vía auxiliar para corregir la estenosis esofágica en un paciente canino, hembra, Pug, con antecedentes de vómitos recurrentes como principal síntoma. Mediante endoscopia se observó que el esófago torácico estaba inflamado, con mucosa engrosada y fibrótica, además de anillos fibrosos de color blanquecino, lo que dificultaba el paso de la sonda, lo que permitía determinar el diagnóstico de estenosis esofágica. En este informe se optó por el uso de balón dilatador, realizándose tres procedimientos con una semana de diferencia, para mejorar la condición sintomática. Tras el procedimiento dilatador, fue posible el desarrollo favorable del cuadro clínico presentado por el paciente.

Esophageal stenosis is a morphofunctional alteration that causes inflammatory lesion in the submucosal and muscular layers of the esophagus, inducing them to fibrosis and altering the esophageal diameter. The present report addresses the use of a balloon dilator as an auxiliary way to correct esophageal stenosis in a canine, female, Pug patient, with a history of recurrent vomiting as the main complaint. Through endoscopy, it was observed that the thoracic esophagus was inflamed, with thickened and fibrotic mucosa, in addition to whitish colored fibrous rings, which hindered the passage of the probe, enabling the determination of the diagnosis of esophageal stenosis. In this report, we opted for the use of a dilator balloon, with three procedures being performed one week apart, to improve the symptomatic condition. After the dilator procedure, the favorable development of the clinical condition presented by the patient was possible.

A estenose esofágica é uma alteração morfofuncional que ocasiona em lesão inflamatória das camadas submucosa e muscular do esôfago, induzindo-as a fibrose e que altera o diâmetro esofágico. O presente relato aborda a utilização de balão dilatador, como forma auxiliar de correção de estenose esofágica em paciente canino, fêmea, da raça Pug, apresentando histórico de vômitos recorrentes como queixa principal. Por meio da endoscopia, observou-se que o esôfago torácico estava inflamado, com a mucosa espessada e fibrótica, além de anéis fibrosos de coloração esbranquiçada, o que dificultava a passagem da sonda, possibilitando a determinação do diagnóstico de estenose esofágica. Nesse relato, optou-se pelo uso do balão dilatador, sendo feitos três procedimentos intervalados de uma semana entre eles, para a melhora da condição sintomática. Após o procedimento dilatador, foi possível o desenvolvimento favorável do quadro clínico apresentado pela paciente.

Permanent tracheostomy in a horse: a case report / Traqueostomia permanente em equino: relato de caso

Problems related to the locomotor and gastrointestinal systems correspond to the highest percentage of clinical cases. However, diseases related to the respiratory system can result in low animal performance or even the animal's removal from athletic life. This paper aims to report a case of permanent tracheotomy in a horse. The animal was treated at the Jerônimo Dix-Huit Rosado Maia Veterinary Hospital - HOVET, with respiratory noise and dyspnea claims. In the anamnesis, the owner reported that the animal had been presenting respiratory difficulty for 20 days. On physical examination, respiratory noise and dyspnea were noted. Endoscopy was performed, from which a marked decrease in the arytenoid cartilage movement on the right and left sides was noted. It was possible to diagnose a stage IV case of bilateral laryngeal hemiplegia, combining clinical signs with endoscopy findings. Thus, the surgical treatment of permanent tracheostomy was chosen. After surgery, drug therapy using antibiotics and anti-inflammatory drugs was performed. In addition, a nº 6 metal tracheostomy cannula was inserted. After 36 days of hospitalization, the animal was discharged with regression of clinical signs.(AU)

Problemas relacionados aos sistemas locomotor e gastrointestinal correspondem ao maior percentual de casos clíni-cos. No entanto, doenças relacionadas ao sistema respiratório podem resultar em baixo desempenho do animal ou mesmo na retirada do animal da vida atlética. Este trabalho tem como objetivo relatar um caso de traqueotomia permanente em um cavalo. O animal foi atendido no Hospital Veterinário Jerônimo Dix-Huit Rosado Maia - HOVET, com queixas de ruído respiratório e dispneia. Na anamnese, o proprietário relatou que o animal apresentava dificuldade respiratória há 20 dias. Ao exame físico, notou-se ruído respiratório e dispneia. Foi realizada endoscopia, a partir da qual foi notada diminuição acentuada do movimento da cartilagem aritenoide nos lados direito e esquerdo. Foi possível diagnosticar um caso em estágio IV de hemiplegia laríngea bila-teral, combinando os sinais clínicos com os achados endoscópicos. Assim, optou-se pelo tratamento cirúrgico da traqueostomia definitiva. Após a cirurgia, foi realizada terapia medicamentosa com antibióticos e anti-inflamatórios. Além disso, uma cânula de traqueostomia de metal nº 6 foi inserida. Após 36 dias de internação, o animal recebeu alta com regressão dos sinais clínicos.(AU)

Brachycephalic syndrome in dogs - endoscopic findings in the airways

Background: Brachycephalic dogs have several abnormalities in the airways, which generate clinical manifestations that impair the quality of life of these animals. Primary alterations promote airflow obstruction and increase intraluminal negative pressure, causing secondary alterations due to a cycle of inflammation with consequent obstruction. With the onset of inflammation and other alterations in the airways, clinical manifestations can be observed, such as snoring, reverse sneezing, coughing, dyspnea, cyanosis, syncope, and vomiting. Endoscopic examination of the airways allows visualization and diagnosis of morphological changes in these animals. This study aimed to evaluate the endoscopic findings of the airways and determine the quantitative and qualitative assessment of the severity of clinical manifestations in 14 dogs with brachycephalic syndrome (BS). Materials, Methods & Results: Historical and anamnesis data and clinical, respiratory, and digestive manifestations were collected from the owners' reports. The clinical manifestations were classified as mild, moderate, or severe. All animals were subjected to endoscopy of the airways, and image findings were grouped according to the anatomical site where they were observed, then the abnormalities were correlated with the severity of the clinical manifestations. When comparing the frequency of endoscopic abnormalities with the severity of clinical manifestations, it is interesting to observe that animals with severe disease more frequently presented the following alterations: prolongation and thickening of the soft palate, laryngeal changes, presence of hyperemia, lymphoid hyperplasia and polyps in the nasopharynx, hypoplasia and presence of tracheal secretion and thickening of the dorsal tracheal muscle; bronchial collapse, hypoplasia of the main bronchi and bronchial hyperemia and the presence of aberrant nasal turbinates. Comparison between the means of nonparametric variables was performed using the Mann-Whitney test, with a 5% significance level. Discussion: A higher frequency of French Bulldog dogs included in the study was observed, probably due to their greater popularity, although any brachycephalic dog may be affected by BS. Considering that nostril stenosis is a congenital alteration, which is usually diagnosed early, and since the animals included in the study were dogs referred for the rhinoplasty procedure the higher frequency of young dogs in the study was not surprising. The results revealed a significant difference in the endoscopic findings with the severity of the clinical manifestations in different variables, such as prolongation and thickening of the soft palate, eversion of the laryngeal saccules, presence of laryngeal inflammation and collapse, presence of polyps or lymphoid hyperplasia in the nasopharynx, thickening of the dorsal muscle of the trachea, polyps in the trachea and hypoplasia in addition to bronchial hyperemia. The larynx was the most affected anatomical site, with alterations present in 92.8% of the evaluated dogs. Based on these findings, it can be concluded that airway obstruction caused by primary alterations can cause secondary alterations, with consequent clinical manifestations in brachycephalic dogs it is possible to suggest that dogs with this syndrome may present severe manifestations of the disease, regardless of age. Furthermore, it can be concluded that in this study, dogs with BS had frequent laryngeal alterations and that alterations in the main bronchi were present in all animals with severe manifestations of the disease.

Use of balloon dilatation technique via endoscopy procedure in a canine patient with esophageal stenosis: case report / Uso da técnica de dilatação por balão via procedimento endoscópico em um paciente canino com estenose esofágica: relato de caso / Uso de la técnica de dilatación con balón mediante procedimiento de endoscopia en un paciente canino con estenosis esofágica: reporte de caso

Esophageal stenosis is a morphofunctional alteration that causes inflammatory lesion in the submucosal and muscular layers of the esophagus, inducing them to fibrosis and altering the esophageal diameter. The present report addresses the use of a balloon dilator as an auxiliary way to correct esophageal stenosis in a canine, female, Pug patient, with a history of recurrent vomiting as the main complaint. Through endoscopy, it was observed that the thoracic esophagus was inflamed, with thickened and fibrotic mucosa, in addition to whitish colored fibrous rings, which hindered the passage of the probe, enabling the determination of the diagnosis of esophageal stenosis. In this report, we opted for the use of a dilator balloon, with three procedures being performed one week apart, to improve the symptomatic condition. After the dilator procedure, the favorable development of the clinical condition presented by the patient was possible.

A estenose esofágica é uma alteração morfofuncional que ocasiona em lesão inflamatória das camadas submucosa e muscular do esôfago, induzindo-as a fibrose e que altera o diâmetro esofágico. O presente relato aborda a utilização de balão dilatador, como forma auxiliar de correção de estenose esofágica em paciente canino, fêmea, da raça Pug, apresentando histórico de vômitos recorrentes como queixa principal. Por meio da endoscopia, observou-se que o esôfago torácico estava inflamado, com a mucosa espessada e fibrótica, além de anéis fibrosos de coloração esbranquiçada, o que dificultava a passagem da sonda, possibilitando a determinação do diagnóstico de estenose esofágica. Nesse relato, optou-se pelo uso do balão dilatador, sendo feitos três procedimentos intervalados de uma semana entre eles, para a melhora da condição sintomática. Após o procedimento dilatador, foi possível o desenvolvimento favorável do quadro clínico apresentado pela paciente.

La estenosis esofágica es una alteración morfofuncional que provoca una lesión inflamatoria en las capas submucosas y musculares del esófago, induciéndolas a la fibrosis y alterando el diámetro esofágico. El presente informe aborda el uso de un dilatador de balón como vía auxiliar para corregir la estenosis esofágica en un paciente canino, hembra, Pug, con antecedentes de vómitos recurrentes como principal síntoma. Mediante endoscopia se observó que el esófago torácico estaba inflamado, con mucosa engrosada y fibrótica, además de anillos fibrosos de color blanquecino, lo que dificultaba el paso de la sonda, lo que permitía determinar el diagnóstico de estenosis esofágica. En este informe se optó por el uso de balón dilatador, realizándose tres procedimientos con una semana de diferencia, para mejorar la condición sintomática. Tras el procedimiento dilatador, fue posible el desarrollo favorable del cuadro clínico presentado por el paciente.

Massa esofágica em cárdia de um cão / Esophageal mass in cardia of a dog

O sistema digestório é responsável pela quebra dos alimentos em menores partes, a fim de gerar energia, crescimento e renovação celular. É constituído de um tubo digestivo formado por boca, esôfago, estômago, alças intestinais, reto e ânus; além dos órgãos anexos. O esôfago dá continuidade ao canal alimentar da faringe ao estômago. O câncer de esôfago, em cães e gatos, ocorre raramente, representando cerca de menos de 0,5% de todos os tumores nessas espécies. O maior fator de risco para os tumores esofágicos em cães está relacionado com as áreas endêmicas do nematódeo Spirocerca lupi, que parasita o cão. Diante do exposto, neste trabalho, relata-se o caso de um cão da raça Pit Bull, com dez meses de idade, que deu entrada no Hospital Veterinário Prof. Mário Dias Teixeira com histórico de apatia, tosse, engasgo e alotriofagia. Foram solicitados exames de hemograma, bioquímica sérica, PCR, radiografia, ultrassonografia e endoscopia digestiva alta. Os exames hematológicos indicaram alterações sistêmicas e os exames de imagem apontaram alterações no trato gastrointestinal, sendo que o exame endoscópico apontou a presença de uma massa em região ventral da mucosa esofágica.

The digestive system is responsible for breaking food into smaller pieces to generate energy, growth, and cell renewal. It consists of a digestive tube formed by mouth, esophagus, stomach, intestinal loops, rectum, and anus, as well as attached organs. The esophagus continues the alimentary canal from the pharynx to the stomach. Esophageal cancer in dogs and cats is rare, accounting for less than 0.5% of all tumors in these species. The major risk factor for esophageal tumors in dogs is related to endemic areas of the nematode Spirocerca lupi that parasitizes the dog. This work presents the case of a 10-month-old Pit Bull dog that was admitted at the Veterinary Hospital Prof. Mário Dias Teixeira with a history of apathy, cough, choking, and allotriophagia. Hemogram, serum biochemistry tests, PCR, radiography, ultrasonography, and upper digestive endoscopy were requested. The hematological exams indicated systemic alterations and the imaging exams presented alterations in the gastrointestinal tract, while the endoscopic exam showed the presence of a mass in the ventral region of the esophageal mucosa.

Experimental model of portal hypertension and esophagogastric varices in minipigs: pressure and endoscopic pilot study

Introduction: Portal hypertension still represents an important health problem worldwide. In the search for knowledge regarding this syndrome, experimental studies with animal models have proven to be useful to point the direction to be taken in future randomized clinical trials. Purpose: To validate the experimental model of portal hypertension and esophagogastric varices in a medium-sized animal. Methods: This study included five minipigs br1. Midline laparotomy with dissection of the portal vein and production of a calibrated stenosis of this vein was performed. Measurement of pressure in the portal venous and digestive endoscopic were performed before and five weeks after the production of a stenosis. Results: All animals were 8 months old, average weight of 17 ± 2.5 kg. The mean pressure of the portal vein immediately before the partial ligation of the portal vein was 8.9 + 1.6 mm Hg, with 26.6 + 5.4 mm Hg in the second measurement five weeks later (p < 0.05). No gastroesophageal varices or hypertensive portal gastropathy were seen at endoscopy procedures in our sample at any time in the study. Conclusion: Portal vein ligation in minipigs has been validated in the production of portal hypertension, but not in the formation of esophageal varices.

Estenose esofágica adquirida: relato de caso / Esophageal stenosis acquired: case report / Estenosis esofágica adquirida: informe de un caso

Refluxos gastroesofágicos podem ocorrer por diversos fatores como fármacos anestésicos, pré-disposição de raça, ausência de jejum, idade e sexo. A exposição da mucosa esofágica ao conteúdo gástrico é a principal causa de esofagites, que, por sua vez, podem evoluir para uma estenose do órgão, formando uma faixa circular intraluminal, causando estreitamento e comprometendo o lúmen esofágico. O presente trabalho tem por objetivo descrever um caso de estenose esofágica decorrente de ovariohisterectomia, dando ênfase às possíveis causas, formas de diagnóstico, tratamento e profilaxia da enfermidade. A cadela relatada foi atendida no setor de Clínica Médica de Animais de Companhia do Hospital Veterinário da UFVJM, Campus Unaí no dia 14 de novembro de 2019, aproximadamente um mês após receber o diagnóstico de estenose esofágica, obtido pelo histórico, sinais clínicos, achados radiográficos e, principalmente, por endoscopia esofágica. De acordo com dados da literatura, o animal apresentava diversos fatores que pré-dispõem ao refluxo gastroesofágico e, consequentemente, a estenose esofágica, como o histórico cirúrgico, idade e raça, dentre outros. Receitou-se tratamento clínico com antiácidos e inibidores da bomba de prótons para remissão clínica.

Gastroesophageal reflux may occur during anesthesia due to various factors such as anesthetic drugs, race disposition, absence of fasting, age and gender. Exposure of the esophageal mucosa to gastric contents is the main cause of esophagitis, which in turn may develop into esophageal stricture, forming an intraluminal circular band, causing narrowing and compromising the esophageal lumen. The objective of this work is to describe a case of esophageal stricture resulting from an ovariohysterectomy, emphasizing the possible causes, diagnosis, treatment and prophylaxis of the disease. The bitch of this report was attended of the group of Small Animals Medical Clinic II of UFVJM-Campus Unaí together with the teacher responsible for the discipline attended the reported animal on November 14, 2019, approximately one month of receiving diagnosis of esophageal etricture, obtained through history, signs radiographic findings and mainly by esophageal endoscopy. According to data from the literature, the animal had several factors that predispose to gastroesophageal reflux and consequently sophageal stricture, such as surgical history, age, race and others. Clinical treatment with antacids and proton pump inhibitors was prescribed for clinical remission.

Los reflujos gastroesofágicos pueden producirse durante la anestesia debido a varios factores como los fármacos anestésicos, la predisposición de la raza, la ausencia de ayuno, la edad y el sexo. La exposición de la mucosa esofágica al contenido gástrico es la principal causa de la esofagitis, que a su vez puede evolucionar hacia una estenosis esofágica, formando una banda circular intraluminal, provocando un estrechamiento y comprometiendo la luz esofágica.El presente trabajo tiene como objetivo describir un caso de estenosis esofágica resultante de una ovariohisterectomía, destacando las posibles causas, formas de diagnóstico, tratamiento y profilaxis de la enfermedad. La perra relatada fue atendida en el sector de Clínica Médica de Animales de Compañía del Hospital Veterinario de la UFVJM, Campus Unaí junto con el profesor responsable del sujeto el 14 de noviembre de 2019, aproximadamente un mes después de recibir el diagnóstico de estenosis esofágica, obtenido a través de la historia, los signos clínicos, los hallazgos radiográficos y principalmente por la endoscopia esofágica.De acuerdo con los datos de la literatura, el animal presentaba varios factores que predisponen al reflujo gastroesofágico y consecuentemente a la estenosis esofágica, como los antecedentes quirúrgicos, la edad, la raza entre otros. Se prescribió un tratamiento clínico con antiácidos e inhibidores de la bomba de protones para la remisión clínica.

Tumor venéreo transmissível canino em laringe com metástase pulmonar / Canine transmissible venereal tumor in the larynx with pulmonary metastasis

Background: Canine transmissible venereal tumor (TVT) is one of the most common canine neoplasms in Brazil. Lesions develop mainly in the genital tissue and less frequently in other areas, in the extragenital form. Metastasis is rare, and the disease progression depends on the patient’s immune status. The treatment of choice is chemotherapy with vincristine sulfate, considered an effective and safe modality. The present work describes the first case of extragenital TVT in the larynx with pulmonary metastasis at the time of diagnosis. Case: An approximately 4-month-old mixed-breed bitch was attended manifesting acute clinical respiratory signs. The patient had been rescued from the street 2 months beforehand. Physical examination revealed pale mucous membranes and crackling pulmonary auscultation. Thoracic radiography was performed in 3 projections, showing multiple nodules in the lung parenchyma, followed by cytopathological examination using fine needle puncture guided by thoracic ultrasound, confirming the diagnosis of TVT. Considering the cytological finding and the absence of primary tumor lesions in the genital, oral, cutaneous or nasal regions, endoscopy was performed in order to locate a possible primary focus. The exam revealed a small erythematous tumor with smooth and regular surface, measuring approximately 2.5 cm, located in the larynx, between the arytenoid cartilages. Chemotherapy was performed with vincristine sulfate with radiographic follow-up throughout the treatment. Full remission of the pulmonary and laryngeal nodules was achieved at the end of the protocol. The animal remained in complete remission for a period of 2 years. Discussion: TVT is more frequently observed in animals of active reproductive age, and rarely in animals under 1 year of age, as in the case...

Esophageal squamous cell carcinoma in cats

Background: Esophageal neoplasms are rarely reported in cats. The frequency rate is less than 0.5% and those neoplasms are usually malignant. Esophageal squamous cell carcinoma (SCC) is an idiopathic epithelial neoplasm, invasive and metastatic that can induce partial or complete obstruction of the esophageal lumen. There is no breed or sex predisposition, and it is more common in cats over 8-years-old. Esophageal SCC is more frequent in the middle third of the esophagus. The prognosis is poor, as the cats are usually diagnosed at an advanced stage. This report aims to describe clinical, endoscopic, radiographic, and pathological features of two cases of esophageal squamous cell carcinoma in cats. Cases: A 11-year-old neutered male cat presenting regurgitation, weight loss, anorexia and dyspnea was referred to veterinary internal medicine care. Simple and contrast-enhanced radiographic images of the cervical and thoracic regions showed an alveolar pattern in the cranial lung lobes and signs of esophageal lumen irregularity and dilatation in the mediastinum topography. The upper digestive endoscopy showed a dilated esophageal lumen, and an irregular mass was observed in the thoracic esophagus involving the entire esophageal circumference. Biopsy fragments were collected, and the histopathological result was compatible with squamous cell carcinoma. The second case was a 10-year-old neutered male cat presenting hyporexia, regurgitation, dyspnea, tachypnea, and abnormal breath sounds. The ultrasound of the chest showed 3 amorphous hypoechogenic and heterogeneous areas in the right and left hemithorax between parietal and visceral pleura. The cytological examination was compatible with a malignant epithelial tumor. The patient died 3 months after the onset of clinical signs. At gross exam, it was observed a friable, irregular, and ulcerated mass of 5.0 x 3.0 cm in the middle third of the esophagus...

Comparison of the internal thoracic artery flow dissected by video endoscopy or conventional technique

ABSTRACT Purpose: To compare the blood flow in the internal thoracic artery when dissected endoscopically in a conventional manner, in addition to develop a reliable experimental training model for the surgical team. Methods: Paired experimental study. Ten pigs were operated and had both internal thoracic arteries dissected, the right with a conventional technique and the left by video endoscopy. The main outcomes to be studied were flow, length, and time of dissection of each vessel. Results: Blood flow measurements were performed with mean heart rate of 100 ± 16 bpm and mean arterial pressure of 89.7 ± 13 mm Hg. The mean blood flow of endoscopic dissection of the internal thoracic artery was 170.2 ± 66.3 mL/min and by direct view was 180.8 ± 70.5 (p = 0.26). Thus, there was no statistically significant difference between the flows, showing no inferiority between the methods. Conclusions: The minimally invasive dissection of the internal thoracic artery was shown to be not inferior to the dissection by open technique in relation to the blood flow in the present experimental model. In addition, the model that we replicated was shown to be adequate for the development of the learning curve and improvement of the endoscopic abilities.

Salpingopharyngeus fistula by means of videosurgery to treat horse bilateral gutural pouch chronic empyema – a case study / Fístula salpingofaríngea por videocirurgia para tratamento de empiema crônico de bolsa gutural bilateral em equino – relato de caso

The aim of this paper is to report the Salpingopharyngeus fistula technique by means of videosurgery through a natural orifice (NOTES) in order to treat bilateral empyema. A mare was seen at the Large Animal Sector of UFPR, with a history of bilateral purulent nasal discharge associated with dysphagia lasting for ninety days. The animal was submitted to endoscopy, showing a moderate amount of purulent secretion in both guttural pouches. With no improvement on the clinical treatment, we opted for surgical treatment by endoscopy through Salpingopharyngeus fistula made with the aid of a device containing an electrical scalpel developed to perform this technique. It consisted of making an incision in the pharyngeal recess in order to access the guttural pouches and subsequently drain the purulent content. The patient was discharged at the same day and returned to work 30 days after the procedure. Surgical treatment for cases of guttural pouch empyema is indicated when the clinical resolution has not been effective, and the minimally invasive technique is indicated due to the reduction of risks and the easiness of postoperative management. Until this moment, there are no reports of the salpingopharyngeal fistula technique through video surgery for the treatment of guttural pouch empyema, which has proved to be efficient for the treatment of the disease.

O objetivo deste trabalho é relatar a técnica de fístula salpingofaríngea por videocirurgia através de orifício natural (NOTES) para tratamento de empiema bilateral. Uma égua foi atendida no Setor de Grandes Animais da UFPR, com histórico de secreção nasal purulenta bilateral associado a disfagia há noventa dias. O animal foi submetido à endoscopia, evidenciando moderada quantidade de secreção purulenta em ambas as bolsas guturais. Sem apresentar melhora com o tratamento clínico, optou-se pelo tratamento cirúrgico por endoscopia através da realização de uma fístula salpingofaríngea feita com o auxílio de um dispositivo contendo eletrobisturi, desenvolvido para a realização desta técnica; que consistiu na realização de uma incisão no recesso faríngeo, para o acesso das bolsas guturais e posterior drenagem do conteúdo purulento. O paciente recebeu alta médica no mesmo dia e retornou ao trabalho 30 dias após o procedimento. O tratamento cirúrgico para os casos de empiema de bolsa gutural é indicado quando a resolução clínica não foi efetiva, sendo a técnica minimamente invasiva indicada devido à redução de riscos e à facilidade do manejo pós-operatório. Até o momento, não há relatos da técnica de fístula salpingofaríngea através de videocirurgia para o tratamento de empiema de bolsa gutural, a qual mostrou-se eficiente para o tratamento da enfermidade.

Salpingopharyngeus fistula by means of videosurgery to treat horse bilateral gutural pouch chronic empyema a case study / Fístula salpingofaríngea por videocirurgia para tratamento de empiema crônico de bolsa gutural bilateral em equino relato de caso

The aim of this paper is to report the Salpingopharyngeus fistula technique by means of videosurgery through a natural orifice (NOTES) in order to treat bilateral empyema. A mare was seen at the Large Animal Sector of UFPR, with a history of bilateral purulent nasal discharge associated with dysphagia lasting for ninety days. The animal was submitted to endoscopy, showing a moderate amount of purulent secretion in both guttural pouches. With no improvement on the clinical treatment, we opted for surgical treatment by endoscopy through Salpingopharyngeus fistula made with the aid of a device containing an electrical scalpel developed to perform this technique. It consisted of making an incision in the pharyngeal recess in order to access the guttural pouches and subsequently drain the purulent content. The patient was discharged at the same day and returned to work 30 days after the procedure. Surgical treatment for cases of guttural pouch empyema is indicated when the clinical resolution has not been effective, and the minimally invasive technique is indicated due to the reduction of risks and the easiness of postoperative management. Until this moment, there are no reports of the salpingopharyngeal fistula technique through video surgery for the treatment of guttural pouch empyema, which has proved to be efficient for the treatment of the disease.(AU)

O objetivo deste trabalho é relatar a técnica de fístula salpingofaríngea por videocirurgia através de orifício natural (NOTES) para tratamento de empiema bilateral. Uma égua foi atendida no Setor de Grandes Animais da UFPR, com histórico de secreção nasal purulenta bilateral associado a disfagia há noventa dias. O animal foi submetido à endoscopia, evidenciando moderada quantidade de secreção purulenta em ambas as bolsas guturais. Sem apresentar melhora com o tratamento clínico, optou-se pelo tratamento cirúrgico por endoscopia através da realização de uma fístula salpingofaríngea feita com o auxílio de um dispositivo contendo eletrobisturi, desenvolvido para a realização desta técnica; que consistiu na realização de uma incisão no recesso faríngeo, para o acesso das bolsas guturais e posterior drenagem do conteúdo purulento. O paciente recebeu alta médica no mesmo dia e retornou ao trabalho 30 dias após o procedimento. O tratamento cirúrgico para os casos de empiema de bolsa gutural é indicado quando a resolução clínica não foi efetiva, sendo a técnica minimamente invasiva indicada devido à redução de riscos e à facilidade do manejo pós-operatório. Até o momento, não há relatos da técnica de fístula salpingofaríngea através de videocirurgia para o tratamento de empiema de bolsa gutural, a qual mostrou-se eficiente para o tratamento da enfermidade.(AU)

Ultrasound and endoscopic findings in dogs with lymphangiectasia / [Conclusões ultrassonográfica e endoscópica em cães com linfangiectasia ]

Lymphangiectasia is a heterogenous inflammatory bowel disease characterized by lymphatic vessel dilation, chronic diarrhea and protein loss such as serum albumin and globulin. The most common cause of lymphangiectasia is considered to be the congenital malformation of the lymphatics. The study was conducted between 2012-2015 on 76 dogs suffering from intestinal disorders and manifesting digestive symptoms such as diarrhea or weight loss. In order to assess the origin of disorder, physical examination, biochemistry profile, ultrasound and endoscopic examinations were performed. Ultrasound examination tried to assess the changes of intestines' echogenicity, changes in wall thickness, wall layering and presence of striations or / and speckles (hyperechoic structures along intestinal mucosal layer). Endoscopic examination findings included dilated lacteals (59.2%) and erythema (21.1%). Although increased friability was observed in 33 dogs, it was not considered in the study due to limitations represented by the evaluation of the endoscopic images only. The study proved that an extremely significant statistical correlation exists between the presence of speckles and dilated lacteals in dogs with lymphangiectasia (P<0.05). Up to now, there is no other study to make an association between the white spots observed in ultrasound examination and dilated lacteals revealed after endoscopy in dogs with intestinal lymphangiectasia.(AU)

A linfangiectasia é uma doença inflamatória intestinal heterogênea, caracterizada por dilatação dos vasos linfáticos, diarreia crônica e perda de proteínas, como albumina sérica e globulina. A causa mais comum de linfangiectasia é considerada a malformação congênita dos linfáticos. O presente estudo foi realizado entre 2012 e 2015, em 76 cães que sofrem de distúrbios intestinais e manifestam sintomas digestivos, como diarreia ou perda de peso. Para avaliar a origem do distúrbio, foram realizados exame físico, perfil bioquímico, ultrassonográfico e endoscópico. O exame ultrassonográfico tentou avaliar as alterações da ecogenicidade do intestino, as alterações na espessura da parede, a estratificação e a presença de estrias e / ou de manchas (estruturas hiperecoicas ao longo da camada mucosa intestinal). Os resultados do exame endoscópico incluíram lacteais dilatadas (59,2%) e eritema (21,1%). Embora tenha sido observada maior friabilidade em 33 cães, ela não foi considerada no estudo devido às limitações representadas pela avaliação apenas das imagens endoscópicas. O estudo demonstrou que existe uma correlação estatística extremamente significativa entre a presença de manchas e lacteais dilatadas em cães com linfangiectasia (P <0,05). Até o momento, não há outro estudo para associar as manchas brancas observadas no exame ultrassonográfico e lacteais dilatadas reveladas após endoscopia em cães com linfangiectasia intestinal.(AU)