Gasless laparoscopic renal biopsy in canine cadavers: a preclinical study.

In this study we aimed to analyze the feasibility of the gasless renal biopsy technique in canine cadavers. The cadavers were randomly divided into two groups: laparoscopic GCG, in which gasless laparoscopy was performed and GCP, laparoscopy with pneumoperitoneum was performed. The procedures were randomly performed on the right and left kidneys. The total surgical time, procedural steps, and intraoperative complications were recorded. The degree of difficulty of the surgical approaches was evaluated by the surgeon, assistant, and external evaluators. Renal samples were evaluated for quality, number of glomeruli, and proportion of renal cortex. The total operative time was higher in the GCG group than in the GCP group (p < 0.01). Additionally, positioning of the second portal and platform positioning took longer than the other steps. The surgical groups differed from each other in the Likert scale values for almost all the parameters regarding the difficulty of the surgical approaches (p < 0.05), with higher scores in the GCG group than in the GCP group. Based on the video recordings, the GCP group had higher scores than the GCG group for degrees of difficulty of the approach (p < 0.05). Renal histological parameters were similar between the surgical groups and surgical sides. Our study findings indicate that the proposed gasless renal biopsy technique is feasible. The longer operative time and technical difficulties in the gasless approach did not affect the quality of the renal specimens.

Neste estudo objetivamos analisar a viabilidade da técnica de biópsia renal gasless em cadáveres caninos. Os cadáveres foram divididos aleatoriamente em dois grupos: GCG laparoscópico, no qual foi realizada laparoscopia gasless e GCP, onde foi realizada laparoscopia com pneumoperitônio. Os procedimentos foram realizados aleatoriamente nos rins direito e esquerdo. O tempo cirúrgico total, etapas do procedimento e complicações intraoperatórias foram registrados. O grau de dificuldade das abordagens cirúrgicas foi avaliado pelo cirurgião, assistente e avaliadores externos. As amostras renais foram avaliadas quanto à qualidade, número de glomérulos e proporção do córtex renal. O tempo operatório total foi maior no grupo GCG do que no grupo GCP (p < 0,01). Além disso, o posicionamento do segundo portal e o posicionamento da plataforma demoraram mais do que as outras etapas. Os grupos cirúrgicos diferiram entre si nos valores da escala Likert para quase todos os parâmetros relativos à dificuldade das abordagens cirúrgicas (p < 0,05), com escores mais elevados no grupo GCG do que no grupo GCP. Com base nas gravações de vídeo, o grupo GCP obteve pontuações mais altas que o grupo GCG para graus de dificuldade da abordagem (p < 0,05). Os parâmetros histológicos renais foram semelhantes entre os grupos cirúrgicos e os lados cirúrgicos. Os resultados do nosso estudo indicam que a técnica proposta de biópsia renal gasless é viável. O maior tempo operatório e as dificuldades técnicas na abordagem sem gás não afetaram a qualidade das amostras renais.

Biliary peritonitis in a dog after perforation of the gallbladder during laparoscopic cholecystectomy

Background: Iatrogenic gallbladder perforation during laparoscopic cholecystectomy (LC) is a common complication and occurs in at least one third of human patients undergoing LC. This is attributed to the fragility of the gallbladder wall associated with mucocele and cholecystitis, in addition to the need for repetitive gripping and traction of the gallbladder during its manipulation with laparoscopic instruments. As complications from this event are rare in human patients, conversion to laparotomy is not routinely indicated and the adverse consequences of bile spillage are minimized by abundant irrigation of the peritoneal cavity and adequate antimicrobial therapy. On the other hand, there is little information regarding the outcome of laparoscopic management of this complication in laparoscopic cholecystectomies in dogs, particularly since most surgeons indicate conversion in these cases. Thus, we describe a case of biliary peritonitis that developed in a dog after laparoscopic management of iatrogenic perforation of the gallbladder during a laparoscopic cholecystectomy, in a case of gallbladder mucocele. To the best of our knowledge, there are no reports of biliary peritonitis following laparoscopic management of iatrogenic gallbladder perforation during LC in dogs. Case: A 14-year-old Poodle was referred for clinical evaluation with selective appetite, recurrent episodes of hyporexia, and abdominal discomfort. Ultrasound findings characterized chronic liver disease and gallbladder mucocele. The patient was referred for laparoscopic cholecystectomy, during which the gallbladder was iatrogenically perforated, with extravasation of a large volume of bile content. This complication was managed by copious abdominal irrigation via laparoscopic access and antimicrobial therapy. On the second postoperative day, the patient started to present apathy, hyporexia, emesis, and jaundice. The patient remained hospitalized in the intensive care unit for stabilization and monitoring through hematological examinations and serial abdominal ultrasound. Due to progressive worsening of the clinical picture, an exploratory laparotomy was performed ten days after the initial surgical procedure. This examination showed multiple adhesions and the presence of bile residues adhered to numerous points on the peritoneal surface and pancreas. Despite the intensive treatment instituted, death occurred 10 h after the second surgical procedure. Discussion: The high risk of gallbladder perforation during laparoscopic cholecystectomies correlates with the dissection step or repetitive grasping and traction of the gallbladder with laparoscopic instruments. Conversion is not routinely indicated and laparoscopic management is considered effective in humans. However, in this case, the presence of a large volume of extravasated semisolid bile content and its adherence to the mesothelial surface made it impossible to remove it in its entirety despite the abundant irrigation of the abdominal cavity, resulting in a picture of biliary peritonitis in the postoperative period. In view of the reported negative outcome, the authors encourage the adoption of measures that minimize the risk of gallbladder perforation when performing LC in dogs. These include the use of atraumatic instruments or aspiration of bile content before surgical manipulation. Cases in which such a complication is recorded should be carefully monitored to enable early diagnosis and treatment of biliary peritonitis. Furthermore, conversion should be considered when there is extravasation of large volumes of bile, particularly in the presence of gallbladder mucocele, until future studies establish the safety and effectiveness of laparoscopic management of this complication.

Thoracoscopic pericardiectomy associated with fully implantable catheter via thoracoscopy in the management of mesothelioma in a bitch.

Mesothelioma is a very aggressive malignant tumor with low survival rates that is often diagnosed belatedly. Pericardial effusion is a common consequence in cases of mesothelioma, with pericardiocentesis and pericardiectomy indicated; therefor thoracocentesis is necessary to drain the contents no longer retained in the pericardium. The present report describes a mesothelioma-carrying dog with a history of cardiac tamponade that underwent thoracoscopic pericardiectomy and, later, thoracoscopic implantation of a fully implantable catheter to function as a thoracic drain. In the consulted literature, there is no use of a fully implantable catheter for this purpose. The authors consider that there was an improvement in the quality of life.

Canine ovariectomy by hybrid or total natural orifice transluminal endoscopic surgery: technical feasibility study and pain assessment.

OBJECTIVE: To compare technical feasibility, surgical time, surgical complications, and postoperative pain in ovariectomy (OVE) by hybrid and total natural orifice transluminal endoscopic surgery (NOTES). STUDY DESIGN: Prospective randomized clinical trial. ANIMALS: Sixteen healthy and sexually intact bitches. METHODS: Dogs were randomly assigned to the hybrid NOTES group (HNG; n = 8) and the total NOTES group (TNG; n = 8) to compare surgical time, pain scores and complications. Pain was assessed by using the visual analog scale (VAS) and the Melbourne pain scale (MPS). RESULTS: Surgical time did not differ between the experimental groups (HNG = 46.3 ± 18.5 minutes, TNG = 54.6 ± 31.1 minutes). Exteriorization of the ovaries through the vaginal wound was the major difficulty. Complications were minor in both groups and occurred intraoperatively only in the HNG, and in both groups post operatively. No dogs required rescue analgesia in the intraoperative or postoperative period. There were no differences in VAS or MPS scores between the groups for any surgical times except for the VAS assessment at 72 hours after extubation (HNG = 1.1 ± 0.3, TNG = 0.7 ± 0.4, P = .0221). CONCLUSION: Both NOTES techniques were comparable for canine OVE, with no requirement for additional analgesia in the postoperative periods. It was not possible to determine whether there was a clear advantage of one technique rather than the other. CLINICAL SIGNIFICANCE: The minimally invasive techniques proposed for laparoscopic OVE are feasible for dogs with low pain scores and low rates of complications for both groups.

Iliac lymphadenectomy following intrauterine mapping in a female dog with breast neoplasm

Background: The lymphatic system plays an important role in the local control of neoplasms as well as in the transportation of tumor cells, which represents the most common pathway of metastasis. From the tumorigenesis, there is a remarkable enlargement of the tumor drainage network towards the regional and target lymph nodes. Since the mammary lymphatic system of animals with neoplasms as well as the demarcation of the pelvic and abdominal caudal chain are poorly studied, the aim of the present study is to report a case of iliac lymphadenectomy after intrauterine lymphatic dyeing in a dog with breast neoplasm, which allowed the identification of metastasis in the medial iliac lymph node.Case: A 7-year-old, 13.4 kg, non neutered, mixed breed, female dog was diagnosed with ulcerative neoplasm in the left caudal abdominal breast, which presented evolution of approximately 90 days, presenting ulceration for 10 days, according to the tutor. After a clinical evaluation, thoracic radiography and abdominal ultrasonography were requested, which did not present metastasis suggestive images. Therefore, left unilateral total mastectomy was indicated. Retro-umbilical celiotomy was performed for the administration of 0.5 mL of 1% intrauterine methylene blue (body of the uterus), which allowed lymphatic mapping and medial iliac lymphadenectomy. Subsequently, ovariohysterectomy was performed and after celiorrhaphy, axillary lymphadenectomy was performed, followed by left unilateral mastectomy and concomitant removal of the superficial inguinal lymph node. The patient had a prompt recovery and was discharged from hospital in six hours postoperatively. The excised material was referred for histopathological examination, which revealed the presence of metastasis of simple tubulopapillary carcinoma of the mammary gland in the left medial and superficial inguinal lymph nodes, while the axillary lymph node had no metastases.[...]

Iliac lymphadenectomy following intrauterine mapping in a female dog with breast neoplasm

Background: The lymphatic system plays an important role in the local control of neoplasms as well as in the transportation of tumor cells, which represents the most common pathway of metastasis. From the tumorigenesis, there is a remarkable enlargement of the tumor drainage network towards the regional and target lymph nodes. Since the mammary lymphatic system of animals with neoplasms as well as the demarcation of the pelvic and abdominal caudal chain are poorly studied, the aim of the present study is to report a case of iliac lymphadenectomy after intrauterine lymphatic dyeing in a dog with breast neoplasm, which allowed the identification of metastasis in the medial iliac lymph node.Case: A 7-year-old, 13.4 kg, non neutered, mixed breed, female dog was diagnosed with ulcerative neoplasm in the left caudal abdominal breast, which presented evolution of approximately 90 days, presenting ulceration for 10 days, according to the tutor. After a clinical evaluation, thoracic radiography and abdominal ultrasonography were requested, which did not present metastasis suggestive images. Therefore, left unilateral total mastectomy was indicated. Retro-umbilical celiotomy was performed for the administration of 0.5 mL of 1% intrauterine methylene blue (body of the uterus), which allowed lymphatic mapping and medial iliac lymphadenectomy. Subsequently, ovariohysterectomy was performed and after celiorrhaphy, axillary lymphadenectomy was performed, followed by left unilateral mastectomy and concomitant removal of the superficial inguinal lymph node. The patient had a prompt recovery and was discharged from hospital in six hours postoperatively. The excised material was referred for histopathological examination, which revealed the presence of metastasis of simple tubulopapillary carcinoma of the mammary gland in the left medial and superficial inguinal lymph nodes, while the axillary lymph node had no metastases.[...](AU)

Acesso minimamente invasivo da artéria renal com diferentes tipos de cateteres por radiologia convencional / Minimally invasive approach to renal artery using different types of catheter by conventional radiology

Background: Several routes of administration have been used for cell and gene therapy delivery in kidney disease in the last years. Moreover, a more homogenous distribution and a higher response was observed when administered intra-arterially. The main objective of the present study was to describe and to compare the use of Fogarty thru-lumen embolectomy catheter with angiographic catheter through the femoral artery by using conventional radiology as a guide.Materials, Methods & Results: Seven healthy dogs were used in these experiments. First, a Fogarty thru-lumen embolectomy catheter was introduced followed by an angiographic catheter. The primary outcome was the number of attempts for the placement of the introducer and the number of radiographic studies to carry out nephrography. Preceding the surgical procedure, ultrasonographic evaluation was performed in all animals in order to measure the diameter of the left and right femoral arteries, left and right renal and abdominal aorta at the renal level. After trichotomy and antisepsis of the medial face of the two pelvic limbs, the 6F valve introducer was placed based on the modified Seldinger technique. Thereafter, aortography was performed, showing its collateral arteries, with contrast injection, and it was estimated how much of the Fogarty 5,5F catheter had to be introduced. Subsequently, a guidewire was inserted through the catheter followed by the Fogarty catheter. Another x-ray was taken to show the position of the catheter. It was observed whether the catheter was positioned correctly and the cuff was filled, and then another contrasting radiograph was performed. If the contrast was not going to the kidneys, the cuff of the catheter was deflated, the catheter was repositioned and a new contrast radiography was performed.[...]

Acesso minimamente invasivo da artéria renal com diferentes tipos de cateteres por radiologia convencional / Minimally invasive approach to renal artery using different types of catheter by conventional radiology

Background: Several routes of administration have been used for cell and gene therapy delivery in kidney disease in the last years. Moreover, a more homogenous distribution and a higher response was observed when administered intra-arterially. The main objective of the present study was to describe and to compare the use of Fogarty thru-lumen embolectomy catheter with angiographic catheter through the femoral artery by using conventional radiology as a guide.Materials, Methods & Results: Seven healthy dogs were used in these experiments. First, a Fogarty thru-lumen embolectomy catheter was introduced followed by an angiographic catheter. The primary outcome was the number of attempts for the placement of the introducer and the number of radiographic studies to carry out nephrography. Preceding the surgical procedure, ultrasonographic evaluation was performed in all animals in order to measure the diameter of the left and right femoral arteries, left and right renal and abdominal aorta at the renal level. After trichotomy and antisepsis of the medial face of the two pelvic limbs, the 6F valve introducer was placed based on the modified Seldinger technique. Thereafter, aortography was performed, showing its collateral arteries, with contrast injection, and it was estimated how much of the Fogarty 5,5F catheter had to be introduced. Subsequently, a guidewire was inserted through the catheter followed by the Fogarty catheter. Another x-ray was taken to show the position of the catheter. It was observed whether the catheter was positioned correctly and the cuff was filled, and then another contrasting radiograph was performed. If the contrast was not going to the kidneys, the cuff of the catheter was deflated, the catheter was repositioned and a new contrast radiography was performed.[...](AU)

Laparoscopic nephrotomy to removal of staghorn calculus in a canine / Nefrotomia laparoscópica na remoção de cálculo coraliforme em um canino

Background: Renal urolithiasis is the third most common disease of the urinary tract of dogs. In humans, staghorn lithiasis affects 1 to 1.5% of the population, often women over 50 years old. In veterinary medicine, this type of lithiasis has been little reported, and there are few descriptions of treatment, both in small and large animals. The objective of this work is to report a rare case of renal staghorn stones treated by laparoscopic nephrotomy. Case: A six-year-old female schnauzer with 6 kg body weight was evaluated clinically in order to spay. According to the owner, the animal showed polydipsia. Additional tests such as blood count, serum biochemistry, radiography and abdominal ultrasound were done, showing hematological examinations within the standards for the species. After the ultrasound we noticed an asymmetric kidneys with the right kidney with preserved cortical layer and hyperechoic line corticomedullary interface, with posterior acoustic shadow and left kidney with relative/corticomedullary differentiation and pelvis preserved without alteration; this evocative image of kidney stones in kidney right. In abdominal radiographs was possible to visualize radiopaque mass in the right kidney compatible with renal staghorn stones. Excretory urography was done, which demonstrated evident excretion of contrast material in the left kidney and the right kidney doubtful.[...]

Laparoscopic nephrotomy to removal of staghorn calculus in a canine / Nefrotomia laparoscópica na remoção de cálculo coraliforme em um canino

Background: Renal urolithiasis is the third most common disease of the urinary tract of dogs. In humans, staghorn lithiasis affects 1 to 1.5% of the population, often women over 50 years old. In veterinary medicine, this type of lithiasis has been little reported, and there are few descriptions of treatment, both in small and large animals. The objective of this work is to report a rare case of renal staghorn stones treated by laparoscopic nephrotomy. Case: A six-year-old female schnauzer with 6 kg body weight was evaluated clinically in order to spay. According to the owner, the animal showed polydipsia. Additional tests such as blood count, serum biochemistry, radiography and abdominal ultrasound were done, showing hematological examinations within the standards for the species. After the ultrasound we noticed an asymmetric kidneys with the right kidney with preserved cortical layer and hyperechoic line corticomedullary interface, with posterior acoustic shadow and left kidney with relative/corticomedullary differentiation and pelvis preserved without alteration; this evocative image of kidney stones in kidney right. In abdominal radiographs was possible to visualize radiopaque mass in the right kidney compatible with renal staghorn stones. Excretory urography was done, which demonstrated evident excretion of contrast material in the left kidney and the right kidney doubtful.[...](AU)

Laparoscopic diaphragmatic hernioplasty in a dog / Hernioplastia diafragmática laparoscópica em cão

A diaphragmatic hernia is characterized by the passage of the abdominal viscera into the thoracic cavity, which may be congenital or acquired. Its treatment is achieved by surgical correction. When there is no tissue or in cases of herniation with a chronic disease, the use biological or synthetic implants is recommended. The objective of this study was to report a technique of laparoscopic diaphragmatic hernia repair using bovine pericardium preserved in a canine, using three portal accesses. Due to the large diaphragmatic defect, reduction with the aid of a network of preserved bovine pericardium in formaldehyde 4% was chosen. The mesh was sutured to the transversus abdominus muscle in two layers. The first layer was sutured using simple continuous pattern, and the second one using simple interrupted sutures. The patient collapsed and died 24 hours postoperatively. However, the purposed technique was feasible(AU)

A hérnia diafragmática é caracterizada pela passagem das vísceras abdominais para a cavidade torácica, podendo ser de origem congênita ou adquirida, que exige o tratamento cirúrgico. Quando houver ausência de tecido ou em casos de herniação com evolução crônica, recomenda-se a utilização de implantes biológicos ou sintéticos. O objetivo deste trabalho é relatar a técnica de herniorrafia diafragmática laparoscópica com o uso de pericárdio bovino conservado em um canino, a partir do acesso laparoscópico com três portais. Devido ao grande defeito diafragmático, optou-se pela sua redução com o auxílio de implante de pericárdio bovino conservado em formaldeído a 4%, este fixado a musculatura diafragmática com sutura intracorpórea, utilizando para isso duas camadas de sutura ambas com náilon 0, a primeira contínua simples seguida de pontos isolados simples, em toda extensão da membrana conservada. Apesar do animal vir a óbito nas primeiras 24 horas do pós-operatório, a técnica adotada se mostrou viável(AU)

Laparoscopic diaphragmatic hernioplasty in a dog / Hernioplastia diafragmática laparoscópica em cão

A diaphragmatic hernia is characterized by the passage of the abdominal viscera into the thoracic cavity, which may be congenital or acquired. Its treatment is achieved by surgical correction. When there is no tissue or in cases of herniation with a chronic disease, the use biological or synthetic implants is recommended. The objective of this study was to report a technique of laparoscopic diaphragmatic hernia repair using bovine pericardium preserved in a canine, using three portal accesses. Due to the large diaphragmatic defect, reduction with the aid of a network of preserved bovine pericardium in formaldehyde 4% was chosen. The mesh was sutured to the transversus abdominus muscle in two layers. The first layer was sutured using simple continuous pattern, and the second one using simple interrupted sutures. The patient collapsed and died 24 hours postoperatively. However, the purposed technique was feasible...

A hérnia diafragmática é caracterizada pela passagem das vísceras abdominais para a cavidade torácica, podendo ser de origem congênita ou adquirida, que exige o tratamento cirúrgico. Quando houver ausência de tecido ou em casos de herniação com evolução crônica, recomenda-se a utilização de implantes biológicos ou sintéticos. O objetivo deste trabalho é relatar a técnica de herniorrafia diafragmática laparoscópica com o uso de pericárdio bovino conservado em um canino, a partir do acesso laparoscópico com três portais. Devido ao grande defeito diafragmático, optou-se pela sua redução com o auxílio de implante de pericárdio bovino conservado em formaldeído a 4%, este fixado a musculatura diafragmática com sutura intracorpórea, utilizando para isso duas camadas de sutura ambas com náilon 0, a primeira contínua simples seguida de pontos isolados simples, em toda extensão da membrana conservada. Apesar do animal vir a óbito nas primeiras 24 horas do pós-operatório, a técnica adotada se mostrou viável...

Proliferación y la viabilidad de las células derivadas del estroma mesenquimal de epiplón, el tejido adiposo perirrenal y el bolso de grasa interescapular en conejos (Oryctolagus cuniculus) / Proliferation and viability of mesenchymal stromal cells derived from omentum, fat perirenal and adipose interscapular pouch in rabbits (Oryctolagus cuniculus) / Proliferação e viabilidade de células-tronco derivadas do omento maior, tecido adiposo perirrenal e bolsa adiposa interescapular em coelhos (Oryctolagus cuniculus)

El tejido adiposo es una fuente alternativa de células madre mesenquimales, se presenta como el número de aumento de la colección de células menos invasiva y permitiendo comparación con el método de la médula ósea (MO). En los seres humanos, el metabolismo del tejido adiposo difiere de acuerdo con la localización anatómica. En ratones, se observaron diferencias en la composición celular y la capacidad de diferenciación de las células madre mesenquimales derivadas de tejido adiposo (ADSC), de acuerdo a las regiones anatómicas. El objetivo de este estudio es comparar la proliferación y la viabilidad de las células mesenquimales estromales multipotentes (CTMs) derivados de la bolsa de grasa interescapular, el epiplón mayor y la grasa perirrenal de conejos. Para esto, tres conejos fueron sometidos a cirugía para la extirpación de un tejido adiposo omental, perirrenal y interescapular abultada bolsa. Las células se procesaron y se cultivaron en una atmósfera humidificada con 5% de CO2, y posteriormente se tiñeron con azul de tripano y se contaron en una cámara de Neubauer. Llegamos a la conclusión de que hubo una variación en la capacidad proliferativa de CTMs con respecto a las regiones estudiadas, con la ventaja de la grasa omental en las otras dos regiones. La viabilidad de CTMs las tres regiones mostró variación durante los pasajes.(AU)

Adipose tissue is an alternative source of mesenchymal stem cell. It can be obtained by less invasive method and in larger quantities when compared with bone marrow. In humans, adipose tissue metabolism differs according to anatomic location. In mices, according to the anatomical regions, differences were observed in cellular composition and differentiation capacity of adipose-derived stromal cells (ADSCs). The objective of this study is to compare the viability and proliferation of mesenchymal stromal cells (MSC) derived from the bag interscapular fat, omental and perirenal fats of rabbits. For this, three rabbits were undergone to surgical collect fat from difference sites. Cells were processed and grown in a humidified atmosphere containing 5% CO2, and subsequently they were stained with Trypan blue and counted in a Neubauer chamber. It was concluded that there was variation in the proliferative capacity of MSCs over the regions studied, with advantage of great omental fat about the other regions. The viability of MSCs from the three regions showed variation during passages.(AU)

O tecido adiposo é fonte alternativa de células-tronco mesenquimais, apresentando-se como método menos invasivo e permitindo coleta de maior quantidade celular em comparação a medula óssea (MO). Nos humanos, o tecido adiposo apresenta diferenças de metabolismo, conforme a localização anatômica. Em camundongos, foram observadas diferenças em relação à composição celular e à capacidade de diferenciação das células tronco mesenquimais derivadas do tecido adiposo (ADSCs), de acordo com as regiões anatômicas. O objetivo deste trabalho é comparar a proliferação e viabilidade de células-tronco mesenquimais (CTMs) derivadas da bolsa adiposa interescapular, do omento maior e da gordura da região perirrenal de coelhos. Para isso, três coelhos foram submetidos a procedimentos cirúrgicos para remoção de tecido adiposo do omento maior, região perirrenal e bolsa adiposa interescapular. As células foram processadas e cultivadas em atmosfera umidificada a CO2 5%, sendo posteriormente coradas com Azul de Tripan e contadas em câmara de Neubauer. Concluí-se que houve variação na capacidade proliferativa das CTMs em relação as regiões estudadas, com vantagem da gordura omental sobre as outras duas regiões. A viabilidade das CTMs das três regiões apresentou variação durante as passagens.(AU)

Proliferação e viabilidade de células-tronco derivadas do omento maior, tecido adiposo perirrenal e bolsa adiposa interescapular em coelhos (Oryctolagus cuniculus)

O tecido adiposo é fonte alternativa de células-tronco mesenquimais, apresentando-se como método menos invasivo e permitindo coleta de maior quantidade celular em comparação a medula óssea (MO). Nos humanos, o tecido adiposo apresenta diferenças de metabolismo, conforme a localização anatômica. Em camundongos, foram observadas diferenças em relação à composição celular e à capacidade de diferenciação das células tronco mesenquimais derivadas do tecido adiposo (ADSCs), de acordo com as regiões anatômicas. O objetivo deste trabalho é comparar a proliferação e viabilidade de células-tronco mesenquimais (CTMs) derivadas da bolsa adiposa interescapular, do omento maior e da gordura da região perirrenal de coelhos. Para isso, três coelhos foram submetidos a procedimentos cirúrgicos para remoção de tecido adiposo do omento maior, região perirrenal e bolsa adiposa interescapular. As células foram processadas e cultivadas em atmosfera umidificada a CO2 5%, sendo posteriormente coradas com Azul de Tripan e contadas em câmara de Neubauer. Concluí-se que houve variação na capacidade proliferativa das CTMs em relação as regiões estudadas, com vantagem da gordura omental sobre as outras duas regiões. A viabilidade das CTMs das três regiões apresentou variação durante as passagens.

Otoplastia após biópsia excisional de neoplasia auricular emcão – relato de caso e descrição de técnica / Otoplasty of outer ear after excisional biopsy of ear neoplasia in a dog - case report and technique description

As neoplasias auriculares tem como uma das formas de tratamento a ressecção da tumoração, preservandoao máximo o pavilhão. Este trabalho objetivou demonstrar uma técnica utilizada no tratamento de ummastocitoma com a preservação da orelha externa de um cão. Foi realizada uma incisão circular, de espessuracompleta ao redor do tumor, procurando respeitar ao máximo as margens de segurança. Optou--se pela reconstrução através de secção e rotação da margem caudal do pavilhão auricular, mantendo aomáximo a sua forma. Após sete dias, o paciente apresentou cicatrização completa da lesão, sem sinais dedeficiência vascular e após 18 meses sem recidivas tumorais. A técnica de otoplastia utilizada mostrou-seum tratamento eficaz na remoção do neoplasma, mantendo a cosmese e fisiologia auricular do paciente.

The auricular mastocytoma has as treatment an otoplasty with resection of the tumor, preserving the pinna as much as possible. This study aimed to demonstrate a technique used in the treatment of thisneoplasm with the preservation of the outer ear in a dog. A circular incision was made with full thicknessaround the tumor, trying to preserve the safety margins, choosing a reconstruction by rotation of the caudalmargin of the ear, keeping the most of her shape. After seven days, the patient had complete healingof the injury, without signs of vascular impairment and after 18 months without tumor recurrence. Thetechnique used for otoplasty was an effective treatment for tumor removal while maintaining cosmesisand physiology of the patient’s ear.

Otoplastia após biópsia excisional de neoplasia auricular emcão relato de caso e descrição de técnica / Otoplasty of outer ear after excisional biopsy of ear neoplasia in a dog - case report and technique description

As neoplasias auriculares tem como uma das formas de tratamento a ressecção da tumoração, preservandoao máximo o pavilhão. Este trabalho objetivou demonstrar uma técnica utilizada no tratamento de ummastocitoma com a preservação da orelha externa de um cão. Foi realizada uma incisão circular, de espessuracompleta ao redor do tumor, procurando respeitar ao máximo as margens de segurança. Optou--se pela reconstrução através de secção e rotação da margem caudal do pavilhão auricular, mantendo aomáximo a sua forma. Após sete dias, o paciente apresentou cicatrização completa da lesão, sem sinais dedeficiência vascular e após 18 meses sem recidivas tumorais. A técnica de otoplastia utilizada mostrou-seum tratamento eficaz na remoção do neoplasma, mantendo a cosmese e fisiologia auricular do paciente.(AU)

The auricular mastocytoma has as treatment an otoplasty with resection of the tumor, preserving the pinna as much as possible. This study aimed to demonstrate a technique used in the treatment of thisneoplasm with the preservation of the outer ear in a dog. A circular incision was made with full thicknessaround the tumor, trying to preserve the safety margins, choosing a reconstruction by rotation of the caudalmargin of the ear, keeping the most of her shape. After seven days, the patient had complete healingof the injury, without signs of vascular impairment and after 18 months without tumor recurrence. Thetechnique used for otoplasty was an effective treatment for tumor removal while maintaining cosmesisand physiology of the patients ear.(AU)

Isospora bocamontensis (Protozoa: Apicomplexa) in captive yellow cardinal Gubernatrix cristata (Passeriformes: Emberezidae) / Isospora bocamontensis (Protozoa: Apicomplexa) em cardeais-amarelo Gubernatrix cristata (Passeriformes: Emberezidae) mantidos em cativeiro

The yellow cardinal (Gubernatrix cristata) is a passerine found in southern Brazil, especially along the border with Uruguay and Argentina. It is an endangered species and its population is decreasing. Among the parasites that affect passerines, the genus Isospora is the most easily found in both captive and free-living birds. This parasite commonly causes injury to the intestinal tissue and could occasionally affect other organs. In this work we examined the occurrence of coccidiosis in captive yellow cardinals and its association with factors such as sex, use of parasiticides, type of enclosure, contact with feces, type of food and cleaning frequency. We collected fecal samples of 45 yellow cardinals, healthy and kept in captivity, in late afternoon at the end of the reproductive period. The examination showed parasitic infection by Isospora bocamontensis in 44.5% of the birds. This infection is not influenced by the sex of birds, but is significantly affected by the type of enclosure, contact with the feces, use of parasiticides, type of food and cleaning frequency. The results indicate that to keep yellow cardinals captive, these factors must be observed.

O cardeal-amarelo (Gubernatrix cristata) é um pássaro que ocorre no sul do Brasil, principalmente na fronteira com Uruguai e Argentina. É uma ave ameaçada de extinção e sua população está decrescendo. Dentre, os parasitas que afetam a ordem Passeriformes, o gênero Isospora está entre o mais encontrado, tanto em aves de cativeiro quanto em aves de vida-livre. Comumente causam injúrias no tecido intestinal, podendo ocasionalmente afetar outros órgãos. Neste trabalho examinamos a ocorrência de coccidiose em cardeais mantidos em cativeiro e verificamos sua associação com fatores como sexo, uso de produtos parasiticidas, tipo de recinto, contato com fezes, tipo de alimentação e frequência de limpeza. Foram coletadas amostras de fezes, ao entardecer, de 45 cardeais-amarelos, hígidos, mantidos em cativeiro, no final do período reprodutivo. O exame coproparasitológico revelou infecção parasitária por Isospora bocamontensis, em 44,5% das aves. Esta infecção não é influenciada pelo sexo das aves, mas é significativamente afetada pelo tipo de recinto, contato com as fezes, uso de parasiticidas, tipo de alimentação e frequência de limpeza. Indicando que para a manutenção em cativeiro estes fatores devem ser observados.

Isospora bocamontensis (Protozoa: Apicomplexa) in captive yellow cardinal Gubernatrix cristata (Passeriformes: Emberezidae) / Isospora bocamontensis (Protozoa: Apicomplexa) em cardeais-amarelo Gubernatrix cristata (Passeriformes: Emberezidae) mantidos em cativeiro

The yellow cardinal (Gubernatrix cristata) is a passerine found in southern Brazil, especially along the border with Uruguay and Argentina. It is an endangered species and its population is decreasing. Among the parasites that affect passerines, the genus Isospora is the most easily found in both captive and free-living birds. This parasite commonly causes injury to the intestinal tissue and could occasionally affect other organs. In this work we examined the occurrence of coccidiosis in captive yellow cardinals and its association with factors such as sex, use of parasiticides, type of enclosure, contact with feces, type of food and cleaning frequency. We collected fecal samples of 45 yellow cardinals, healthy and kept in captivity, in late afternoon at the end of the reproductive period. The examination showed parasitic infection by Isospora bocamontensis in 44.5% of the birds. This infection is not influenced by the sex of birds, but is significantly affected by the type of enclosure, contact with the feces, use of parasiticides, type of food and cleaning frequency. The results indicate that to keep yellow cardinals captive, these factors must be observed.(AU)

O cardeal-amarelo (Gubernatrix cristata) é um pássaro que ocorre no sul do Brasil, principalmente na fronteira com Uruguai e Argentina. É uma ave ameaçada de extinção e sua população está decrescendo. Dentre, os parasitas que afetam a ordem Passeriformes, o gênero Isospora está entre o mais encontrado, tanto em aves de cativeiro quanto em aves de vida-livre. Comumente causam injúrias no tecido intestinal, podendo ocasionalmente afetar outros órgãos. Neste trabalho examinamos a ocorrência de coccidiose em cardeais mantidos em cativeiro e verificamos sua associação com fatores como sexo, uso de produtos parasiticidas, tipo de recinto, contato com fezes, tipo de alimentação e frequência de limpeza. Foram coletadas amostras de fezes, ao entardecer, de 45 cardeais-amarelos, hígidos, mantidos em cativeiro, no final do período reprodutivo. O exame coproparasitológico revelou infecção parasitária por Isospora bocamontensis, em 44,5% das aves. Esta infecção não é influenciada pelo sexo das aves, mas é significativamente afetada pelo tipo de recinto, contato com as fezes, uso de parasiticidas, tipo de alimentação e frequência de limpeza. Indicando que para a manutenção em cativeiro estes fatores devem ser observados.(AU)

Colopexia videoassistida com dois portais para o tratamento de prolapso retal recidivante / Two portal video-assisted colopexy for treatment of recurrent rectal prolapse

O presente relato descreve a utilização da colopexia videoassistida por meio de dois portais de acesso em um caso de cão com prolapso retal recidivante. Após abordagem laparoscópica, o cólon descendente foi tracionado em sentido caudocranial, promovendo-se a redução do prolapso. O acesso pré-púbico foi ampliado, exteriorizando-se o bordo antimesentérico do cólon, no qual se realizou incisão seromuscular de tamanho correspondente à realizada na parede muscular, criando uma ferida de aproximadamente 2,5cm de extensão. A fixação à bainha muscular interna se deu através de sutura contínua simples empregando fio de ácido poliglicólico n° 2-0. Não houve complicações no trans-operatório, bem como indícios de recidiva ou episódios de tenesmo e disquesia após seis meses da intervenção cirúrgica. A colopexia videoassistida descrita é uma alternativa à técnica convencional na correção de prolapso retal recidivante em cães.

This report describes a two portals video-assisted colopexy technique in a case of dog with recurrent rectal prolapse. After laparoscopic approach, the descending colon was pulled in a caudocranial direction to promote the prolapse reduction. The prepubic laparoscopic access was enlarged for the exteriorization of colon's antimesenteric border, which was incised in its seromuscular layer with a similar size of the muscular wall incision, creating a 2,5cm wound. The colopexy on the internal muscular sheath was performed using a simple continuous pattern with 2-0 polyglycolic acid. There were no transoperative complications, as well as evidence of recurrence or episodes of tenesmus and dyschezia for at least six months after surgery. The video-assisted colopexy described is an alternative to the conventional technique of recurrent rectal prolapse treatment in dogs.

Eversão bilateral de terceira pálpebra em cão – Relato de caso / Bilateral eversion of the third eyelid in a dog – Case report

A eversão da terceira pálpebra é observada em algumas raças de grande porte, principalmente emcães jovens durante o primeiro ano de idade. Geralmente a causa desta condição é uma curvaturaanormal na porção vertical de sua cartilagem em forma de “T”. O presente trabalho relata o caso emum cão da raça dogue alemão, macho, com nove meses de idade que apresentou eversão bilateral deterceira pálpebra. O tratamento foi a excisão cirúrgica da porção vertical defeituosa da cartilagem.Após seis meses o animal não apresentou sinais clínicos de recidiva ou outras alterações oculares.

The third eyelid eversion is described in some large breeds, mainly in young dogs during the firstyear of age. Usually the cause of this condition is an abnormal curvature of its cartilage. This reportdescribes a male nine-months-old Great Dane with bilateral protrusion of the third eyelid. The treatmentwas surgical removal of the scrolled portion of the cartilage through the bulbar surface of themembrane. No clinical signs of relapse or other ocular complications were observed after six monthsfrom the procedure.